At Mother&Baby, product testing is at the heart of everything we recommend, especially regarding something as important as car seats. Our mission is to help parents make confident, safe choices backed by real testing and thorough evaluation.
For this guide to the best car seats in 2025, we've rigorously tested a wide range of car seat models to provide the most reliable recommendations.
Who carried out the testing?
We worked with a panel of 30 parent testers, including mums and dads with children from newborn to 12 years old and our parenting writers. Testers included parents like Katie, a mother of three, and Madelaine, a mother of two, who trialled each seat in their daily routines, from nursery runs and motorway trips to car naps and last-minute errands. Some of the testers were recruited via our Mother&Baby reviewer programme, while others were existing contributors to our product testing panels.
How were the car seats tested?
Each car seat was tested over a period of 3–5 weeks, across over 150+ logged hours of hands-on use. Testing took place at home and in family vehicles, with products assessed in various settings including multi-car households, smaller city cars, and larger family SUVs. We asked testers to evaluate each seat using a consistent scoring system across five key criteria:
What were the car seats tested for?
• Ease of installation: We tested how straightforward it is to fit each car seat using both ISOFIX and seatbelt methods, looking for clear instructions, helpful indicators, and whether the seat felt secure once in place.
• Ease of use: We tested daily usability, how simple it was to buckle and unbuckle the child, swivel or recline the seat, and adjust the straps or headrest. We also considered how heavy or bulky the seat felt when moving between vehicles.
• Comfort: We asked our testers to observe how well their children settled in the seat, especially during longer journeys. We looked at materials and padding and how easy it was for children to nap comfortably without their heads slumping.
• Safety features: We examined each seat's safety credentials, including i-Size or R44/04 certification, side-impact protection, harness fit, and standout features like load legs, support cushions or additional impact shields.
• Value for money: We considered the overall price in relation to features, longevity and ease of use. We also examined how long the seat can be used across stages of different ages and sizes.
Each seat was rated out of 5 for each category. A score of 3 or more indicates a product we would confidently recommend; any product scoring lower than three was excluded from this guide but may appear in more specific buying articles for budget, travel or rotating seats.
Our comparison tables reflect these criteria, helping you see how each seat performed in each age category.
How do we decide what car seats are featured?
While dozens of models were tested, only the best-performing ones made this final roundup. Some well-reviewed car seats didn't make the cut this time but may still be featured in individual category guides (e.g. for travel systems or group 2/3 boosters).
So, whether you're installing your first infant seat or upgrading to a high-back booster, rest assured, these recommendations are based on real testing, real journeys, by real parents.
As a mum of three, I know how daunting it can be to choose the right car seat. With endless models, safety ratings, and features to consider, it often feels overwhelming. From those precious first days with your newborn to the toddler years and right through to childhood, your child’s car seat needs are constantly changing. In the UK, by law, children must use a car seat until they’re 12 years old or 135cm tall, which is a lot of growing stages to plan for. But rest assured, we’ve curated a complete guide to the best car seats for every stage with our parent-approved top picks.
In this article:
Working with experts like Damon Marriott, Head of Product Development at Joie UK, we’ve reviewed this year’s top car seats for every stage. Whether you need a snug newborn carrier, a convertible seat for a growing toddler, or a reliable booster for older kids, our guide has all the answers.
Every car seat in our roundup has been carefully selected and rigorously tested for safety, comfort, and convenience. We’ve considered everything from fit and comfort to the latest safety standards like R129 and ADAC ratings. Our goal is to make it easy for you to choose a car seat you can trust so you can focus on what truly matters: enjoying every journey with your little one.
Best car seats at a glance:
• Best every stage car seat: Nuna PRUU
• Best stage 0 car seat: Graco UK, SnugLite i-Size R129
• Best stage 1 car seat: Joie Baby i-Spin 360
• Best stage 2 car seat: Joie i-Pivot 360
• Best stage 3 car seat: Cybex Solution G2
How to choose the right car seat
There are two main systems used in the UK:
1. R129 (i-Size car seats)
These are based on your child’s height and are considered safer due to better side-impact protection.
• Rear-facing is mandatory until at least 15 months old.
• Must be used with ISOFIX anchors in the car.
• Height ranges vary by model – always check compatibility.
2. R44 (Weight-based car seats)
These are based on your child’s weight and are grouped as follows:
| Group | Weight | Approx. Age | Seat Type |
| 0 | Up to 10kg | Birth to 6–9 months | Rear-facing infant carrier |
| 0+ | Up to 13kg | Birth to 12–15 months | Rear-facing infant carrier |
| 1 | 9kg to 18kg | 9 months to 4 years | Forward or rear-facing seat |
| 2 | 15kg to 25kg | 4 to 6 years | High-back booster |
| 3 | 22kg to 36kg | 6 to 12 years | Booster seat |
What's the difference between R44 and R129 car seats?
Both are legal in the UK, but R129 is the newer, safer standard, offering improved protection in the event of a crash, especially side impacts. R44 seats are based on your child’s weight, while R129 uses height, making it easier to choose the right fit. i-Size seats also require children to stay rear-facing until at least 15 months old, which experts agree is the safest position for little ones. While R44-approved seats are still safe if used correctly, i-Size is fast becoming the gold standard, giving parents that extra peace of mind.
The best car seats 2025:
Best multi-stage car seats: From birth to 12 Years
(Group 0+/1/2/3)
One seat that grows with your child.
The Nuna PRUU is a sleek, safety-first rotating car seat designed for children from birth to around four years old. Designed with both comfort and safety in mind, the PRUU features plush Merino wool inserts, built-in ventilation panels, and seven recline positions, ensuring little ones stay cosy no matter the season. "My baby had a very settled and long nap when rear-facing," one tester reported. "This was thanks to the ergonomic design and recline options."
This smart 360° spinning seat was a huge hit with our testers, particularly for its ease of use on busy days. One mum shared, "I've loved using this car seat, being able to do anything one-handed makes life as a parent so much easier." Another parent noted, "The swivel feature is extremely effortless and glides into place every time."
Installation is intuitive thanks to its True Lock ISOFIX system, which uses green indicators to ensure everything is correctly secured. One reviewer said, "It was one of the best, easiest, and fastest installs I've ever used. It just clicked into place." Parents also loved the magnetic buckle holders that keep straps out of the way while placing the baby, a small touch that makes a big difference during wriggly nappy changes or on-the-go mornings.
Compared to popular rotating seats like the Cosatto All in All Rotate, the PRUU stands out for its premium materials and ultra-smooth spin. While the Cosatto offers fun prints and great value, the Nuna PRUU wins on comfort and installation simplicity. This car seat is ideal for parents seeking stress-free travel with a more refined aesthetic. However, overall, this car seat doesn't offer the longevity of the Cossatto car seat.
Read the full Nuna Pruureview
Pros
- Suitable from birth to four years
- Smooth swivel motion makes it easy to get children in and out
- Steel strength technology for peace of mind
- Machine washable for easy cleaning
- Straightforward installation for both seatbelt and ISOFIX
Cons
- Heavier build – at 14kg, it's not ideal for frequent transfers between cars
| Type: | Group 0+/1 equivalent |
| Suitable from: | Birth to approx. 4 years (40–105 cm / up to 18.5 kg) |
| Rear-facing until: | Up to 105 cm (approx. 4 years) |
| Installation: | ISOFIX with support leg (no seat belt install option) |
| Weight: | 14 kg |
| Dimensions: | L66 x W59 x H61 cm (approx.) |
| i-Size: | Yes – ECE R129/03 i-Size certified |
| Safety: | Side impact protection pods, energy-absorbing foam, integrated rebound bar, True Lock™ ISOFIX with green indicators |
| Guarantee: | 2 years |
- True Lock ISOFIX system
- Available in two colours
- Recline positions
- Side-impact protection pods
- Adjustable headrest
- 360-degree rotation
- ISOFIX compatible
The Cosatto All in All Rotate earns the title of Best Budget Car Seat due to its impressive combination of safety features and versatility at a reasonable price point. Designed to last from birth to approximately 12 years old, this multi-stage car seat offers excellent value for money, especially for parents looking for a long-term solution. Its affordability is further highlighted by its ability to cover multiple stages, meaning parents don't need to purchase new seats as their child grows.
One of the standout features of the Cosatto All in All Rotate is its ability to rotate 360 degrees, allowing for both rear-facing and forward-facing positions. This rotation makes it incredibly convenient for parents, especially in smaller cars, as it allows the seat to rotate to the side for easy access, eliminating the need to twist and struggle when securing your child. This is particularly helpful for busy parents who appreciate the ease of getting their child in and out without added stress. Senior Digital Writer, Hannah Carroll, praised this feature, saying, “This car seat made my life easier as it can rotate to get my child in and out of the vehicle.”
In addition to its practical features, the seat is equipped with safety features like side impact protection and an anti-escape system, providing reassurance that your child is secure at all times. It also comes with a recline lock indicator and a five-point harness to accommodate your child’s growth. Despite these fantastic features, the Cosatto All in All Rotate maintains an affordable price tag compared to other seats that offer similar safety and convenience.
However, the seat does come with a few downsides, such as its heavier build, which can make it more difficult to move in and out of the car. While this may be a consideration for some parents, the extensive safety features and ease of use make it an attractive option for those on a budget. As Hannah mentioned, “If I were to make any changes, it would be to make it lighter or smaller. However, I think with all of the safety features, this probably isn't feasible.”
Overall, the Cosatto All in All Rotate is an excellent choice for parents looking for a budget-friendly, long-term solution without compromising on safety or convenience.
Read our full Cosatto All in All Rotate i-Size car seat review
Pros
- Suitable from birth to 12 years old so offers excellent value for money
- Padded removable seat liner & newborn seat insert allows it to grow with your little one
- 360 design to make it easy to get your baby in and out of the car
- Rear or forward facing for additional options
- Removable and washable covers makes it easy to clean
Cons
- Some parents found the clips a little fiddly
- Heavier and bulkier than some so not a great choice if it has to be moved between cars
| Type: | Group 0–3 |
| Suitable from: | Birth up to 36 kg (approx. 12 years old) |
| Rear-facing until: | Up to 18 kg (approx. 4 years; 105 cm) |
| Installation: | ISOFIX + support leg and seatbelt options (varies by group) |
| Weight: | 11.3 kg |
| Dimensions: | 44.5 × 55 cm × 59.5 cm |
| i-Size: | Yes – R129/03 compliant (i‑Size version available) |
| Safety: | Pop‑out SIPS side‑impact protection, energy‑absorbing foam, 5‑point plus anti‑escape harness in Group 1, extended rear‑facing |
| Guarantee: | 4 years |
- Includes patented 5 point plus anti-escape system. (Group 1 only).
- 5-position seat recline for comfort
- Quick-release 5-point safety harness distributes forces over the body.
- Padded removable seat liner & newborn seat insert.
- Anti-slip chest pads and tummy pad included.
- Removable washable soft goods.
The Graco SlimFit 3-in-1 is a sleek, space-saving convertible car seat that grows with your child from birth to approximately 12 years. Designed to take up less room in your car without compromising on comfort or safety, it's a firm favourite for parents looking for practicality on a budget.
One tester, Jessica, raved, “It’s so easy to fit into the car and to take in and out. I highly recommend it. " She praised its slim profile for making backseat access easier when juggling multiple kids. Tester Claire commented that it offers “good value for money” and was pleased to see her little one looking “comfortable and secure.”
Installation is seatbelt-only, which many testers found flexible, straightforward and great for switching between cars. However, some missed the added confidence of ISOFIX. Jennie noted, “Installing the seat rear-facing was a little more difficult,” especially due to the unclear diagrams provided, but once fitted, it felt solid and safe.
Comfort-wise, the Graco SlimFit earns high marks. Its quilted, padded cover is soft and fully washable, with plenty of neck support for longer journeys. With four recline positions, a 10-position headrest, and side-impact protection, it offers a good balance of adaptability and security without the premium price tag.
Compared to the Cosatto All in All Rotate, the Graco SlimFit is more budget-friendly but lacks the vibrant designs and ISOFIX convenience. While the Nuna PRUU offers luxury materials and effortless swivel, the SlimFit wins on compact size and price.
Read the full Graco SlimFit R129 2-in-1 Convertible Car Seat review
Pros
- Slim, compact design fits well in smaller cars or alongside other seats
- Easy seatbelt installation—no ISOFIX needed
- Can be used in older vehicles
- Washable quilted cover for added comfort and convenience
Cons
- No ISOFIX, which some parents prefer for added peace of mind
- Rear-facing installation can be fiddly with unclear instructions
| Type: | |
| Suitable from: | |
| Rear-facing until: | |
| Installation: | |
| Weight: | |
| Dimensions: | |
| i-Size: | |
| Safety: | |
| Guarantee: |
| Nuna PRUU | Cosatto All in All Rotate | Graco SlimFit R129 2-in-1 Convertible Car Seat | |
| Ease of installation: | 5/5 | 3.5/5 | 3/5 |
| Ease of use: | 4.5/5 | 4/5 | 3/5 |
| Comfort: | 4.5/5 | 4/5 | 4/5 |
| Safety features: | 4/5 | 4/5 | 3/5 |
| Value for money: | 4/5 | 5/5 | 4/5 |
| Score: | 4.5 | 4 | 3 |
Stage 0: From Birth to 6–9 Months
(R44 Group 0 / Up to 10kg)
Cost-effective and often can be attached to travel systems, suitable from day one.
4.
Graco UK, SnugLite i-Size R129
Awarded Best Newborn Car Seat (Stage 0/0+) in Mother&Baby Awards 2025
GracoThe Graco SnugLite i‑Size R129 is a super‑lightweight infant car seat designed to accompany your baby from birth up to around 12 months. Weighing just 3.3 kg, carrying between the car, home, or even on trips is effortless, a feature that new parents especially appreciate. One mum told us it’s “so easy to move around,” highlighting the ergonomic handle as a lifesaver during school runs and grocery hauls.
Built to the latest i‑Size R129 safety standard, the SnugLite offers reassuring protection with its Safety Surround side‑impact pods and energy‑absorbing EPS foam. The one-handed adjustable 3‑point harness ensures a snug fit, while a large detachable canopy shields little ones from sun or rain. The padded memory‑foam infant insert and plush fabrics make your baby feel comfortable. Our testers said it is perfect for sleepy rides home from the hospital.
Flexible installation options make life simpler: It snaps into Graco’s SnugLite or rotating SnugTurn ISOFIXbase in seconds and fits securely using your vehicle’s seatbelt when you’re car-hiring or need to share the seat between vehicles. Even better, it connects seamlessly to Graco pushchairs like the Myavo and Near2Me DLX (or any Maxi‑Cosi style stroller with an adapter), making transitions smooth and fuss-free.
For on-the-go families, tester Sophie Knight remarked, "I love that I can jump between house, car and pram without waking baby, getting in and out is just so swift." Its easy-to-clean covers and compact design make it a favourite for daily school runs, quick errands, or family travel.
Read the Graco SnugLite and Snug Turn review
Pros
- Ultra-lightweight at 3.3 kg – easy to carry between car, stroller, and home
- Comfortable fabrics & canopy
- i‑Size R129 certified with side‑impact protection
- Versatile travel compatibility – fits ISOFIX bases, seatbelt, and many prams
Cons
- Base sold separately
| Type: | Infant carrier (Group 0+) |
| Suitable from: | Birth (40cm) |
| Rear-facing until: | 75cm (approx. 12 months) |
| Installation: | ISOFIX base (SnugTurn base, sold separately) or car seat belt |
| Weight: | Approx. 3.66kg |
| Dimensions: | 65 x 44 x 56 cm |
| i-Size: | Yes (R129 approved) |
| Safety: | Side-impact protection, 3-point harness, memory foam newborn insert, compatible with i-Size base |
| Guarantee: | 2 years (when registered with Graco) |
5.
Doona X
Awarded Silver on Best Newborn Car Seat (Stage 0/0+) in Mother&Baby Awards 2025
doona.shop
The Doona X Integrated Travel System is a game-changer for busy parents, seamlessly transforming from a secure infant car seat to a compact stroller in seconds. Eight of our parent testers, who reviewed the travel system for us ahead of the Mother&Baby awards, agreed that "it saved the messing around of getting baby from car seat to stroller or getting a pram base with adapters." One of our testers told us, "I used it much more than I expected," while parent tester Laura Healy praised its sleek design and functionality, saying it offered "plenty of handy features to keep both parents and babies happy."
Its standout three-position recline (sit, relax, lie-flat) offers cosy comfort from day one, even snoozing hospital-bound newborns, and the soft-release mechanism ensures transitions are smooth and quiet, no waking sleeping babies mid-errand.
The Doona X is R129/i-Size certified and includes a detachable Side Impact Protection (SIP) add-on. Laura explained that the SIP "provides great peace of mind" alongside the energy-absorbing frame. While some testers noted the absence of top-tier crash-test ratings and called it "heavy in car seat use," nobody questioned its built-in safety features.
Compact and clever, the Doona X folds into a neat package that fits in most car boots and even plane overhead lockers. A tester from the awards noted that "the transition from car seat to stroller requires just one simple motion," making it ideal for shop nips or airport travel. However, its 8.3 kg bulk and lack of storage mean it's best suited as an errand or travel system rather than a main stroller for long walks.
Read our full Doona Xreview
Pros
- One-step conversion from car seat to stroller
- Three recline positions
- Built-in Side Impact Protection (SIP) and R129 safety certification
- Compact fold and travel-approved
Cons
- Short-term use only, maxing out at 13 kg (approx. 12–15 months)
| Type: | Group 0+ (i-Size) – infant car seat suitable from 40 to 85 cm |
| Suitable from: | Birth to approx. 12–15 months |
| Rear-facing until: | 85 cm (mandatory rear-facing only use) |
| Installation: | Car seatbelt (base not required; <a href="https://www.mamasandpapas.com/products/doona-x-isofix-base-462825300?" data-type="link" data-id="https://www.mamasandpapas.com/products/doona-x-isofix-base-462825300?">ISOFIX base sold separately</a>) |
| Weight: | 8.3 kg (including integrated wheels) |
| Dimensions: | <strong>Folded: </strong>60 x 44 x 66 cm<br><strong>Unfolded (stroller mode):</strong> 99 x 44 x 82 cm |
| i-Size: | Yes – R129 i-Size certified |
| Safety: | Five-point harness, Energy-absorbing shell, and Detachable Side Impact Protection (SIP) |
| Guarantee: | 2 years |
- Converts to a stroller
- Soft release system
- Three recline positions
- Easy-fastening shoulder pads
- High durability wheels
- Side Impact Protection
| Graco UK SnugLite i-Size R129 | Doona X | |
| Ease of installation: | 4.5/5 | 4.5/5 |
| Ease of use: | 5/5 | 5/5 |
| Comfort: | 5/5 | 4.5/5 |
| Safety features: | 3.5/5 | 4.5/5 |
| Value for money: | 4/5 | 4/5 |
| Score: | 4.5 | 4.5 |
Stage 1: 9 Months to 4 Years
(R44 Group 1 / 9–18kg OR i-Size 61–105cm)
Rear or forward-facing toddler seats with extra comfort.
The Joie i-Spin 360 is our top pick for the Best Convertible Car Seat for long-term use because it seamlessly transitions between rear-facing and forward-facing positions, providing a versatile and secure option for children up to approximately four years old (105 cm). Its 360-degree rotation feature makes getting children in and out of the car significantly easier, which is especially useful in tight spaces or for parents who experience back strain.
Safety is a major highlight of this seat, featuring Guard Surround Safety panels that automatically engage when the harness is tightened, offering extra side-impact protection. The Smart Ride lock-off ensures that children remain in the safest rear-facing position for as long as possible. Additionally, it meets the latest i-Size safety standards, with a Tri-Protect headrest that includes memory foam for added security and comfort. The ISOFIX installation makes it sturdy and straightforward to install, reducing the risk of incorrect setup
The plush padding, six recline positions, and built-in ventilation enhance comfort, ensuring that children remain cosy on long journeys. Grace, a parent who tested the seat for a six-hour road trip, reported that her child slept soundly, demonstrating the seat’s superior comfort. She also appreciated the tilt function, which allows for easy adjustments while on the move.
Tim, another parent who tested the i-Spin 360, found it to be heavy but easy to install. He noted that while the straps are very secure, loosening them initially took some getting used to. However, once installed, the seat felt sturdy and safe, with clear installation indicators to prevent mistakes.
One of the drawbacks of the i-Spin 360 is its weight and bulkiness, making it less convenient to move between cars. Some parents also mentioned that while the rotating function is highly useful, it may require a firm tug to operate smoothly. Senior Digital Writer Hannah Carroll said, “I used this car seat with all three of my sons, and it truly stood the test of time. But as our family grew and I needed to fit three car seats across the back seat, I could no longer use the 360° swivel function.”
Overall, the Joie i-Spin 360 is an excellent choice for parents looking for a car seat that combines long-term usability, high safety standards, and convenience. Its rotating design, superior comfort, and advanced safety features make it a worthwhile investment, especially for those who prioritise ease of use in daily routines.
Read our full Joie Baby i-Spin 360review
Pros
- Suitable from birth to 6 years old so offers great value for money
- ISOFIX compatible
- 360-degree rotation makes it easy to get baby in and out of the seat
- Height adjustable headrest makes it comfortable as your baby grows
- 6-recline positions
- Easy to install thanks to the QR-coded YouTube installation video
Cons
- Needs two hands to swivel the car seat unlike others which can be used one-handed
| Type: | i-Size Car Seat |
| Suitable from: | Birth to 4 years |
| Rear-facing until: | Not applicable |
| Installation: | ISOFIX |
| Weight: | 13.9 kg |
| Dimensions: | Rear-facing: 65 x 58 x 51.5–62 cm<br><br><br>Forward-facing: 65 x 58 x 62–76 cm |
| i-Size: | Yes (ECE R129/02) |
| Safety: | Smart Ride lock-off, Tri-Protect headrest |
| Guarantee: | 2 years |
- Forward and rear facing.
- 90-degree swivel and 360-degree rotating seat.
- 5-point harness.
- Multi-recline - 6 recline positions.
Extended Rear-Facing options:
The BeSafe Beyond car seat is a thoughtfully designed, safety-first option that supports your child from birth up to around six years old (or 125cm). As part of BeSafe's new Beyond concept, it offers extended rear-facing travel, a position still widely recommended by safety experts, for years longer than many traditional seats.
A standout feature is its modular base system. If you've previously used the base with a BeSafe infant seat, you can simply purchase the toddler seat as your child grows; no need to start from scratch. Alternatively, the base is also available as part of a complete bundle. It's a smart, flexible setup that makes upgrading both seamless and cost-effective.
Installation is straightforward, with built-in visual indicators offering extra reassurance that everything is fitted correctly. While it may take a couple of tries to get the seat completely level, the step-by-step video guides are straightforward and easy to follow. The seat itself is lightweight and easy to handle, yet the sturdy base provides excellent stability once installed.
Safety remains at the forefront of the Beyond's design. It meets the latest UN R129 i-Size regulations and features a Dynamic Force Absorber in the headrest to enhance side-impact protection. The five-point harness feels secure and adjusts smoothly, and small but helpful touches, like built-in magnets to hold the harness out of the way, make everyday use that little bit easier.
Comfort is another strong point. With four recline positions, a height-adjustable headrest, and breathable mesh panels, the seat is designed to keep children supported and content, even on longer journeys.
Mother&Baby's Senior Digital Writer, Hannah Carroll, shared her experience: "My three-year-old looks incredibly comfortable in this seat, he's tall for his age, but still well supported. I love that he doesn't slump forward when he naps, which used to happen in our old seat. I even tried it with my five-year-old and was impressed by how comfortably they both fit."
Another thoughtful addition is the seat's side-to-side rotation, which makes it easier to lift your child in and out without straining or twisting, something all parents can appreciate.
The BeSafe Beyond is a high-quality, practical choice for families seeking a car seat that combines trusted safety features with lasting comfort and ease of use.
A full BeSafe Beyond review is currently being written.
Pros
- Simple installation – ISOFIX base with built-in indicators
- i-Size Safety Certified – Meets the latest UN R129 i-Size safety regulations
- Dynamic Force Absorber in the headrest provides enhanced protection
- Harness magnets
- Four recline positions and 11 headrest positions
- Five-point harness system is secure and simple to adjust
- Detachable infant carrier (can be shared between cars - a great option for co-parents)
Cons
- Base comes at an added cost (£219)
- Leg space is smaller on a extended rear-facing car seat (up to 16 cm) - our child-tester still found it comfortable
| Type: | i-Size Car Seat |
| Suitable from: | 6 months - 6 years |
| Rear-facing until: | Approved up to 125 cm and 22 kg |
| Installation: | ISOFIX |
| Weight: | 6 kg |
| Dimensions: | 43 x 44 x 67cm |
| i-Size: | Yes (ECE R129) |
| Safety: | Side impact protection (SIP+), Universal Level Technology, Extra protective headrest with Dynamic Force Absorber |
| Guarantee: | 2 years |
Best extended rear-facing car seat
axkid.com
The Axkid One 3 earns its title as the Best Extended Rear-Facing Car Seat thanks to its outstanding safety features, innovative design, and superior legroom compared to competitors. Rear-facing travel is the safest position for young children, and the One 3 extends this benefit longer than most seats, accommodating children up to 125 cm (around 7 years old), well beyond the standard 4-year limit.
Parents particularly appreciate the self-tightening ISOFIX connectors and automatically adjusting headrest, which simplify installation while ensuring a secure, customised fit. The lightweight aluminium frame makes it both durable and easy to transfer between vehicles, while the sliding seat technology provides more legroom than most extended rear-facing seats, a crucial advantage for growing toddlers.
Ryan, a first-time dad who tested the Axkid One 3 with his seven-month-old, found the "30-second installation guarantee" a game-changer. With a built-in ISOFIX base, adjustable recline positions, and a 5-point harness, the seat offered convenience and security, two must-haves for busy parents. However, Ryan noted some limitations. Unlike some competitors, the Axkid One 3 does not rotate (no 360° swivel feature), which can make getting a child in and out trickier. It also requires a significant amount of space, making it less ideal for smaller cars. While the seat accommodates extended rear-facing travel, older children may experience limited legroom over time.
When comparing other Axkid car seats, the Axkid Minikid 4 is a better option for parents needing a higher weight limit (up to 25kg vs. the One 3’s 23kg). However, the Minikid 4 is belt-installed, whereas the One 3’s ISOFIX system makes installation easier. The Axkid One 3 improves upon the original Axkid One, keeping the lightweight frame and ISOFIX installation while enhancing comfort and recline options. However, both models share limited legroom for older children and lack a swivel function, which some parents found inconvenient.
If you want a lightweight, ISOFIX-installed extended rear-facing car seat with excellent safety features, the Axkid One 3 is an excellent choice. However, if you need a higher weight limit (25kg) and don’t mind a belt installation, the Axkid Minikid 4 might be a better fit. For parents prioritising affordability over the latest features, the original Minikid remains a solid option.
Read our full Axkid One 3 review.
Pros
- Allows safest rear facing position up to 7 years old
- Quick and easy to install
- Built-in ISOFIX base
- Adjustable recliner position
- 5-point harness
Cons
- Inability to rotate (no 360 option)
- Requires significant space in order to fit – be aware of legroom in smaller cars
- Limitations for older children with legroom – rear facing only
| Type: | i-Size Car Seat |
| Suitable from: | Birth to 7 years |
| Rear-facing until: | 125 cm / 23 kg |
| Installation: | ISOFIX |
| Weight: | 10 kg |
| Dimensions: | 44cm x 76 x 54cm |
| i-Size: | Yes (ECE R129) |
| Safety | Side impact protection, adjustable headrest |
| Guarantee: | 2 years |
- Internal harness and headrest that automatically adjusts to your child's height and size
- Seven fixed positions on the headrest
- 5 reclining positions
- One-click-extended support leg
- Self-tightening tether straps
- Installation with Seat Belt Attachment
- Removable baby-cushion included
- Axkid Side Impact Protection (ASIP)
- Seat cover is machine washable at 30°
- Compatible with big and small vehicles
- Approved according to ECE R44/04
| Joie Baby i-Spin 360 | BeSafe Beyond Car Seat | Axkid One 3 | |
| Ease of installation: | 4/5 | 4.5/5 | 4/5 |
| Ease of use: | 4/5 | 5/5 | 4/5 |
| Comfort: | 4/5 | 4.5/5 | 4/5 |
| Safety features: | 5/5 | 4/5 | 4.5/5 |
| Value for money: | 4/5 | 5/5 | 3.5/5 |
| Score: | 4 | 4.5 | 4 |
Stage 2: 4 to 6 years
(R44 Group 2 / 15–25kg OR i-Size 100–125cm approx.)
High-back boosters offer more support for younger children.
Best stage two car seat overall
www.argos.co.uk
The Joie i-Pivot 360 is a sleek, intuitive and incredibly practical rotating car seat designed to make life easier from birth to around 4 years, and this is why it's one of the best toddler car seats. With its smooth 360° swivel base, buckling your little one in is quick and fuss-free, no matter how wriggly. This was the standout feature for mum-of-two Leanne: "The swivel design was brilliant… I won't be using anything else again." Whether you're navigating newborn naps or toddler tantrums, the effortless spin function will win you over.
The Joie i-Pivot 360 is i-Size certified, with a strong ISOFIX base and a 5-point harness that's easy to adjust and stays tangle-free, a common frustration with other car seats. Parent tester Emma praised its innovative design: "The straps were easy to adjust and didn't get twisted, which often happens on my other car seats." A green indicator confirms when the seat is locked into place, adding peace of mind that everything is secure.
Comfort-wise, this car seat excels. With memory foam padding, soft breathable fabrics, and multiple recline positions (including a lay-flat option), it's built for rest on the go. "My son looked really comfortable, and the headrest gave great support," said mum Sarah. Parents also appreciated the adjustable headrest and recline lever that can be used while the baby is in the seat, perfect for mid-journey snoozes.
Thanks to ISOFIX's visual indicators, installation is intuitive and secure. "I didn't need instructions," said tester Clare. It was all so user-friendly and satisfying with every click."
A full Joie i-Pivot 360 review is currently being written.
Pros
- 360° swivel base – makes getting toddlers in and out a breeze
- Multiple recline positions
- Super-soft memory foam and breathable fabric
- Easy installation with ISOFIX
Cons
- Bulkier design may not suit smaller cars
| <strong> </strong>Type: | Group 0+/1 (i-Size) |
| Suitable from: | Birth to approx. 4 years (40–105 cm) |
| Rear-facing until: | Up to 105 cm |
| Installation: | ISOFIX with support leg (no seatbelt installation) |
| Weight: | Approx. 14.3 kg |
| Dimensions: | 67.3 x 46 x 56.5 cm |
| i-Size: | Yes – R129 i-Size certified |
| Safety: | 5-point harness, reinforced shell with memory foam, side impact protection, green indicator for locked positions |
| Guarantee: | 2-year manufacturer's warranty |
- R129-compliant (i-Size ready)
- Isofix compatible (base included)
- 2 year guarantee
Best slim build car seat for stage 2
Britaxwww.boots.com
The Britax Römer Advansafix IV R is a premium forward-facing car seat designed to grow with your child from around 9 months to 12 years (9–36 kg). Its slim design fits well in most cars, making it ideal for families needing to install multiple car seats side-by-side. Tester Helen said, "Because it isn't too bulky, two other passengers can sit comfortably."
Parents praised how simple it was to install, thanks to the built-in ISOFIX base and Top Tether. Rebecca noted, "It's very easy to use, install and feels secure with the ISOFIX base." There's no need for complicated instruction manuals; green indicators help confirm correct installation, so you can feel confident every time.
When it comes to comfort, the Advansafix IV R doesn't disappoint. Aimi shared, "I can quickly fasten my daughter in the design is excellent." With a padded seat, three recline options and an adjustable V-shaped headrest, it's built for comfort on long journeys. Rajika added, "My child had lots of leg space and seemed very comfortable, especially on longer drives."
This car seat is especially great for families looking for a one-time purchase that lasts. Using Britax Römer's clever FLIP&GROW system, the seat transitions easily from a 5-point harness (up to 18 kg) to a high-back booster (up to 36 kg) without removing any parts. Tester Israa said, "One seat from 9 months to 12 years, definitely more cost-effective."
Safety is a priority too, with standout features like side impact protection (SICT), a secure 5-point harness, the Pivot Link ISOFIX system to reduce forward movement, and the SecureGuard belt guide to protect your child's delicate abdominal area in booster mode.
As a stage 2 (Group 1) seat, the Advansafix IV R shines. It keeps children securely harnessed for longer, up to 18 kg, and offers a much more tailored fit than standard booster seats for toddlers transitioning out of infant carriers. The secure harness system, sturdy frame and generous padding make it a solid choice for parents wanting a safe and comfortable next step. This provides the ideal in-between solution for children who are not quite ready for seat belt-only boosters.
Compared to the Joie i-Pivot 360, which is known for its rear-facing capability and swivel function, the Advansafix IV R offers longer-term use and excels in the high-back booster stage. While the Joie is brilliant for younger toddlers who benefit from 360-degree ease of access and extended rear-facing, the Britax is the better option once you're ready to move to forward-facing and want something that will last through primary school. Its slim profile and FLIP&GROW system make it a more versatile choice for growing families, especially those with multiple children in the car.
Read our Britax Advansafix IV R review
Pros
- Slim design fits well in most cars
- Easy ISOFIX and Top Tether installation with clear indicators
- Transitions from toddler to teen with the FLIP&GROW system
- Excellent comfort and premium safety features
Cons
- Forward-facing only from 9 months (no rear-facing option)
| Type: | Group 1/2/3 (suitable from approx. 9 months to 12 years / 9–36 kg) |
| Suitable from: | 9 kg (approx. 9 months) |
| Rear-facing until: | Not applicable |
| Installation: | ISOFIX and Top Tether |
| Weight: | 11 kg |
| Dimensions: | 60–83 x 44 x 47 cm |
| i-Size: | Not i-Size compliant (R44/04 regulation) |
| Safety: | 5-point harness up to 18 kg, SecureGuard belt positioner, Side Impact Cushion Technology (SICT), Pivot Link ISOFIX system |
| Guarantee: | 2 years (may vary by retailer) |
- FLIP&GROW system – easily switches from a 5-point harness (Group 1) to a high-back booster using the car’s seatbelt (Group 2/3), without removing any parts
- SecureGuard
- Side Impact Cushion Technology (SICT) – provides advanced protection in the event of a side collision
- Adjustable recline positions
- V-shaped headrest
- ISOFIX + Top Tether installation
- Quick-adjust headrest and harness
- Removable, machine-washable cover
- Harness retainers
| Joie i-Pivot 360 | Britax Advansafix IV R | |
| Ease of installation: | 4/5 | 4/5 |
| Ease of use: | 4.5/5 | 4/5 |
| Comfort: | 4.5/5 | 4.5/5 |
| Safety features: | 4.5/5 | 5/5 |
| Value for money: | 4/5 | 4/5 |
| Score: | 4.5 | 4.5 |
Stage 3: 6 to 12 Years
(R44 Group 3 / 22–36kg OR i-Size 125–150cm)
Car seats for bigger kids who still need a little boost and support.
The Cybex Solution G2 High-Back Booster is a sleek and practical Group 2/3 car seat (100–150 cm, approx. 3 to 12 years) that combines style, portability, and top-notch safety features. Designed for modern families on the move, it folds down compactly in seconds, ideal for car-sharing, storing at the grandparents' or popping in a taxi. “I needed something lightweight, portable, and easy to move between cars, whether mine, their dad's, or the 'grand-sitters'. So, when I read about the features of the Cybex Solution G2, I was all ears,” said Senior Digital Writer, Hannah Carroll, who tested it.
This seat impresses safety-wise. It's patented reclining headrest keeps your child’s head in a safe position, especially during naps, while the advanced Linear Side-impact Protection (L.S.P. System Plus) absorbs energy in the event of a collision. With ISOFIX connectors, easy-to-read indicators, and clear belt routing, installation is secure and fuss-free, whether using ISOFIX or a standard seatbelt.
Hannah also praised its comfort. “My son was comfortable the entire way on a recent one-hour journey on a particularly warm Spring day. I noticed that there was no usual sweaty back, fidgeting, and complaining,” said Hannah, a mum of three. The ten-position height-adjustable headrest means the seat grows with your child, while flexible side wings allow a little extra wiggle room without compromising on protection.
Stylish and lightweight at just 5.8 kg, this high-back booster is as practical as it is good-looking. Available in neutral, contemporary colourways, it looks and feels more premium than its mid-range price tag suggests.
Read our full Cybex Solution G2 review
Pros
- Patented Reclining Headrest offering up to seven times greater protection in case of an accident.
- TheLinear Side-impact Protection (L.S.P.) System Plus enhances safety.
- Height-adjustable headrest and flexible sides that grow with your child.
Cons
- While it offers a reclining headrest, the seat itself has limited recline options.
| Type: | Group 2/3 high-back booster seat (i-Size) |
| Suitable from: | 100–150 cm (approximately 3 to 12 years) |
| Rear-facing until: | Not rear-facing – forward-facing only |
| Installation: | ISOFIX connectors and car seatbelt installation |
| Weight: | Approx. 5.8 kg |
| Dimensions: | 59 × 38 × 55 cm |
| i-Size: | Yes – i-Size approved to UN R129 standard |
| Safety: | Patented reclining headrest, Linear Side-impact Protection (L.S.P. System Plus), and energy-absorbing shell |
| Guarantee: | 2 years manufacturer’s warranty |
- Patented reclining headrest for safer sleeping position
- Linear Side-impact Protection (L.S.P. System Plus)
- ISOFIX connectors for secure and stable installation
- Adjustable headrest with 10 height positions
- Air ventilation system for improved breathability
- Lightweight design (approx. 5.8 kg) for easy portability
- Folds compactly for storage or travel
- Belt-positioning guides for easy and correct seatbelt use
- Soft, durable, and breathable seat fabrics
- Energy-absorbing shell for additional impact protection
The Avionaut MaxSpace Airflow is an exceptional Group 2/3 (R129/03 i‑Size) high-back booster designed to grow with children aged approximately 3 to 12 years (100–150 cm / 15–50 kg). Its airy mesh covers and ergonomic shape make it perfect for long school runs or family holidays. Senior Digital Writer Hannah Carroll commented that it was "clearly the family favourite for comfort. It feels more luxurious," and her kids "fight to get in it."
Installation takes under five minutes using ISOFIX. Helpful colour indicators turn on when fitted correctly, bringing quick peace of mind to busy parents. Hannah noted that fitting it with a seatbelt was “just as simple,” thanks to intuitive green belt-routing guides.
The seat’s standout feature is its spacious 44 cm width, one of the widest in its class. This generous space gives children room to move without feeling squeezed, a key reason it beat out both the BeSafe Beyond and Cybex Solution G2 in her family tests. The lumbar and cervical cushions, part of the Comfort System+, help support healthy spine posture and reduce coccyx pressure, making it an excellent choice for growing bodies.
This seat is a practical choice for parents looking for a lightweight, compact, and easy-to-transport Group 3 high-back booster seat. Its slim design makes it ideal for families who must fit multiple car seats across the back seat or frequently switch seats between vehicles or relatives’ cars. It’s also a brilliant option for grandparents or childminders who want something safe but doesn’t require too much space or effort. The quick and simple belt installation means no fuss when you’re on the go.
While it may not offer the same deep cushioning or ergonomic extras as the Avionaut MaxSpace Airflow, its lighter frame makes it far easier to move and reinstall. Unlike the more premium Cybex Solution G2, which leans into design and styling, this seat focuses on functionality and ease. It is a solid everyday choice for busy families who value convenience just as much as safety.
Read our Avoinaut Maxspace Airflow review
Pros
- Generously wide 44 cm seating—roomy and comfortable for growing children
- Breathable AirFlow mesh fabrics for year-round comfort
- Ergonomic Comfort System+—lumbar and cervical padding supports correct posture
- Easy ISOFIX or seatbelt installation
- Compact
- Easy to transport
- Lightweight
Cons
- Premium price tag—more expensive than many other boosters
| <strong> </strong>Type: | Group 2/3 high-back booster (R129/03 i-Size compliant) |
| Suitable from: | Approx. 3 up to 12 years |
| Rear-facing until: | Not rear-facing – forward-facing only |
| Installation: | ISOFIX and seatbelt installation |
| Weight: | 5.8kg |
| Dimensions: | 59 x 38 x 55-80cm |
| i-Size: | Yes – R129/03 approved for height-based use |
| Safety: | Side Impact Protection System (SPS), Comfort System+ for spinal support, adjustable headrest with impact absorption zones |
| Guarantee: | 3 years |
- Folding feature with compact size
- Carry handle and self-standing function - great for co-parents
- Easy to move between cars, public transport and/or for travelling
- 3-position reclining headrest for little ones that like to nap on the way, keeping their head protected in the safety zone of the car seat
- One-hand recline for ultimate relaxation
- The air ventilation system keeps your little one cool and comfortable
- Side-impact protection
- Adjustable headrest and wings so the car seat can grow taller + wider with your little one
| Cybex Solution G2 | Avionaut MaxSpace Airflow | |
| Ease of installation: | 5/5 | 4.5/5 |
| Ease of use: | 5/5 | 4.5/5 |
| Comfort: | 4.5/5 | 4.5/5 |
| Safety features: | 4.5/5 | 4.5/5 |
| Value for money: | 4/5 | 4.5/5 |
| Score: | 4.5 | 4.5 |
UK car seat laws: What parents need to know
Safety is the top priority when choosing a car seat — UK law requires all children under 12 (or 135cm) to use one, with babies under 15 months travelling rear-facing for vital neck and spine protection. For newborns, a lie-flat seat supports healthy breathing and development. Beyond safety, consider affordability, ISOFIX vs. seatbelt installation, adjustability, and car compatibility. Features like 360° rotation can add daily convenience, and while some travel systems include car seats, always check they meet safety standards and fit your vehicle correctly.
Safety ratings and crash tests (ADAC, i-Size, R44)
When choosing a car seat, look for models that meet either the i-Size (R129) or R44 standards. i-Size offers enhanced side-impact protection and mandates rear-facing travel until at least 15 months. For extra peace of mind, check if the seat has been tested by ADAC, an independent European organisation whose ratings provide clear insight into how seats perform in both front and side-impact crash tests.
Rear-facing and booster seat requirements
Rear-facing car seats
UK law requires babies to remain rear-facing until at least 15 months old (under i-Size regulations) or 9kg (under R44/04). However, safety experts strongly recommend keeping children rear-facing until age 4, as it significantly reduces the risk of injury in frontal crashes.
A Swedish study found that just 22 per cent of UK children aged 2–4 are kept rear-facing, compared to 83% in Sweden. Rear-facing seats offer superior protection by absorbing crash forces and reducing strain on the head and neck. Only rear-facing seats can pass the rigorous Swedish Plus Test.
Campaigners are urging the UK to update its guidance, as many parents turn their children forward-facing too early, despite tests showing rear-facing seats can be up to five times safer.
Campaigners urge the UK to update guidelines, as many parents turn children forward-facing before 4, despite crash tests showing rear-facing seats are up to five times safer.
"You need to keep them rear-facing for as long as possible, and at such a young age, they won't be strong enough to face forward yet. The minimum legal requirement at the moment is 9kg, around nine months, but this is changing to a minimum age of 15 months in a few years.
"This law reflects the huge benefit that rear-facing offers, should the unexpected occur, as facing backwards reduces the load on the child's neck due to the size/weight of the head in proportion to the body at a young age," says Car seat safety expert, Damon Marriott.
Booster seats
Children over 15kg (R44/04) or 100cm tall (R129) can use booster seats. High-back boosters provide better head, neck, and side-impact protection than backless boosters, which are now restricted to children over 125cm and 22kg.
ISOFIX vs. seatbelt installation: Which is better?
ISOFIX is a system that connects the car seat directly to your car’s chassis, offering a more secure and stable fit. It’s quick and easy to install, making it a top choice for many parents.
Seatbelt installation can be just as safe, but it requires careful adjustment. Some parents prefer this option because it’s easier to move between cars.
Can I buy a second-hand car seat?
While it’s tempting to save money, secondhand car seats come with risks. Car safety expert Damon Marriott advises, "Second-hand car seats are fine, provided you know the history, ensuring it hasn't been in an accident or suffered damage in another way, as you are trusting your child's life with the seat. So, if it's from a friend or relative, then this should be OK."
He continues, "What you need to check is the age of the seat, as most plastic shells have a shelf life of between five and 10 years. The seat will have a date of manufacture on it to help identify the age, check that nothing is missing, and, if possible, obtain instructions to ensure your friend/relative has been fitting it correctly. For your peace of mind, however, we recommend opting for a new one with a warranty if possible."
Rear-facing vs. forward-facing: What do experts recommend?
Experts recommend keeping children rear-facing as long as possible, ideally until age 4. Rear-facing seats provide the best protection for a child’s neck and spine in the event of a crash, particularly in frontal collisions. In the UK, babies must travel rear-facing until at least 15 months, but keeping them rear-facing for longer significantly reduces injury risks.
Damon Marriott is a car seat safety expert with an extensive history of working as head of development for a wide range of leading car seat brands, including Nuna and Joie.
Can I buy a second-hand car seat?
Multi-stage car seats are designed to grow with your child, making them a more cost-effective option. However, they may not offer the same level of comfort or protection as a stage-specific seat. If you’re looking for a seat that can adapt as your child grows and you’re willing to sacrifice a little extra comfort at each stage, multi-stage seats can be a great choice.
Ease of cleaning: Removable, washable covers matter
Babies are messy! Look for a car seat with removable and washable covers. This will make cleaning easier, especially if your baby spills food or has accidents. Easy-to-clean materials can save you time and frustration in the long run.
Travel and compatibility: Can it fit in your car and work with a travel system?
Before buying a car seat, check that it will fit your car. Different cars have different seat shapes, and not all car seats fit all vehicles. ISOFIX compatibility is important, and you should also ensure that the car seat is compatible with your travel system if you're using one. Many car seats come with adapters to easily attach them to your pram or stroller.
Best car seat 2025 FAQs:
Are backless booster seats legal in the UK?
Yes, backless booster seats are legal in the UK, but they must meet the legal requirements for children aged 4 to 12 years and who weigh between 15-36 kg. However, safety experts generally recommend using a high-back booster seat, as it provides better protection for the child’s head, neck, and back in the event of a side impact crash.
How long should my child stay rear-facing?
It’s recommended to keep your child rear-facing for as long as possible, ideally until they are at least 15 months old. However, many car seats allow rear-facing travel up to 4 years or more. Research shows that rear-facing car seats reduce the risk of injury in a crash by up to 75% compared to forward-facing seats.
Should the car seat go behind the driver or passenger?
The safest position for a car seat is usually the middle seat of the back row, as it is furthest from the impact in a crash. However, if this isn't possible due to your vehicle’s design, both behind the driver or passenger can be safe, as long as the car seat is correctly installed. Avoid placing a car seat in the front passenger seat if an airbag is present.
What’s the safest car seat position in my car?
The safest car seat position is generally in the middle of the back seat. This minimises the risk of injury during side-impact collisions. If your car does not have a middle seat, either behind the driver or passenger seat is the next best option.
How long can a baby stay in a car seat?
Babies should not stay in a car seat for extended periods. For infants, it’s advised not to exceed 2 hours in a car seat at a time to avoid restricting their breathing or blood circulation. For long journeys, take regular breaks to allow your baby to stretch and rest.
How much should I spend on a car seat?
The price of a car seat can vary significantly, ranging from £50 to over £500. However, you don't need to spend a fortune for safety. Many budget-friendly options offer excellent safety and are ADAC-tested or i-Size approved. On average, spending between £100 to £200 will give you a good balance of safety, comfort, and durability.
Can I take a car seat on a plane?
Yes, you can take a car seat on a plane, provided it is approved for use in an aircraft. Look for the label “approved for use in aircraft” or similar wording. It’s important to note that most airlines allow car seats on planes for children under 2 years, but always check with your airline before your flight.
About the expert
Damon Marriott is a car seat safety expert with an extensive history of working as head of development for a wide range of leading car seat brands, including Nuna and Joie.
About the author
Hannah Carroll is a senior digital writer with four years of experience at Mother&Baby. In her capacity, she curates top-notch listicles, crafts insightful how-to guides, and delivers expert product reviews. As a mother of three, Hannah draws upon her comprehensive understanding of all facets of family life to bring true insight into all the products that make running a home easier.