Best Group 1-2-3 Car Seats of 2025

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Group 1-2-3 car seats are a type of car seat designed for children who have outgrown their baby car seats. These seats are suitable for children weighing between 9 and 36 kg and are typically used from around 9 months to 12 years of age. They offer a range of features such as adjustable headrests, side-impact protection, and reclining options, to ensure the safety and comfort of your child during car journeys. Group 1-2-3 car seats are an essential investment for any parent looking to keep their child safe on the road.
At a Glance: Our Top Picks
Top 7 Group 1-2-3 Car Seats
Cosatto Zoomi Car Seat with Safety Features
The Cosatto Zoomi Car Seat is designed for children weighing between 9 kg and 36 kg, making it suitable from approximately 9 months to 12 years. It features a five-point plus Anti-Escape system, ensuring your little one stays securely in place during journeys. The side impact protection adds an extra layer of safety, giving you peace of mind while on the road. The comfy padded seat and adjustable headrest grow with your child, ensuring comfort at every stage, and the removable, washable padded liner makes cleaning a breeze.
Cozy N Safe Everest Convertible Child Car Seat
The Cozy N Safe Everest Car Seat is designed to grow with your child from 9 months to 12 years. Its adjustable headrest and toddler insert ensure that your little one remains safe and secure at every stage. The pop-out cupholders provide a convenient place for drinks or snacks during long journeys, keeping your child entertained. Additionally, the reversible toddler insert cushion allows for a stylish grey or black look while offering support to smaller children.
Kinderkraft Safety FIX2 I-Size Car Seat
The Kinderkraft FIX2 Car Seat is designed for children aged 15 months to 12 years, accommodating heights from 76 cm to 150 cm. It ensures safety with easy installation using a three-point seat belt and a five-point harness for added security. The seat offers exceptional comfort with 11 adjustable headrest positions, allowing you to customise it as your child grows. Its practical design includes elastic bands to keep the harness in place, making it simple for you to secure your little one quickly and easily.
COSATTO Zoomi Car Seat for Toddlers
The COSATTO Zoomi Seat is designed for children from 9 kg to 36 kg, making it suitable from approximately 9 months to 12 years. It faces forward and uses a standard 3-point vehicle seat belt for secure installation. The exclusive five point plus Anti-Escape system helps ensure that your little one stays safely in place, while side impact protection enhances in-car security. With a comfy padded seat and an adjustable headrest, the Zoomi adapts as your child grows, providing lasting comfort and support.
KIDUKU® 3 in 1 Safety Car Seat
The KIDUKU® Car Seat is a versatile 3-in-1 solution for children weighing between 9 to 36 kg (20 lbs - 80 lbs) or aged 1 to 12 years. Its removable backrest allows you to use it as just a booster seat when needed, providing flexibility as your child grows. Safety is paramount, with approval to the latest ECE R44/04 European standard, ensuring peace of mind during travel. The premium knitted fabric seat pad is easy to clean, as it is machine washable at 30°C (86°F), making maintenance hassle-free for busy parents.
globalkids 360 Swivel Car Seat for 0-12 Years
The globalkids 360 Car Seat is designed for children from birth to 12 years, making it a versatile choice for parents. Its 360° swivel feature allows you to easily place your child in and out of the seat, enhancing convenience. The seat is ISOFIX compliant, ensuring secure installation in your car with either ISOFIX connectors or a 3-point seat belt. With 11 adjustable headrest positions and a simple one-handed recline mechanism, you can easily find the perfect position for your child's comfort. Additionally, the side impact protection offers peace of mind during travel.
LETTAS 360 Rotation Baby Car Seat with Isofix
The LETTAS Baby Car Seat offers a versatile solution for children from birth to 12 years, accommodating weights from 0 to 36 kg. With its 360-degree rotation, you can effortlessly place your child in the seat and adjust between rearward and forward facing as needed. The seat features four comfortable recline positions, ensuring your child is snug and secure during travel. Additionally, the 5-point harness and adjustable headrest provide enhanced safety and comfort, making every journey a breeze for both you and your little one.
Frequently Asked Questions (FAQs)
1. What is a Group 1 2 3 car seat?
Group 1, 2 and 3 seats are forward-facing. The child uses the seat's integral harness, or an impact cushion, until they are 15 kg and then uses the car's seat belt, which secures the child and the seat. Group 2 and 3 seats are high-backed booster seats, although they can also be booster cushions without a back.
2. What age is Group 1 2 3 car seat?
Group 1 – 9kg to 18kg (9 months to 4 years) Group 1/2/3 – 9kg to 36kg (9 months to 12 years) Group 2/3 – 15kg to 36kg (4 years to 12 years) Group 3 – 22kg to 36kg (from 5 or 6 years and more than 125cm tall)
3. What age is a Group 1 car seat?
group 1 – forward-facing seats suitable for children who weigh 9-18kg (20-40lb) or who are aged from about 9 months to 4 years. group 2/3 – high-backed booster seats suitable for children who weigh 15-36kg (33lb-5st 9lb) or are aged from about 4 to 11 years.
During our group 1-2-3 car seat research, we found 92 group 1-2-3 car seat products and shortlisted 7 quality products. We collected and analyzed 16,019 customer reviews through our big data system to write the group 1-2-3 car seats list. We found that most customers choose group 1-2-3 car seats with an average price of £78.62.
The group 1-2-3 car seats are available for purchase. We have researched hundreds of brands and picked the top brands of group 1-2-3 car seats, including Cosatto, COZY N SAFE, KinderKraft, KIDUKU, globalkids.

Hollie Coleman is a paediatrician from Cambridge. She acquired her degree from the University of Oxford, where she also built her copywriting skills. Hollie practiced as a paediatrician for seven years; she wrote and published a couple of books on baby products that sold massively in Europe. With Hollie's vast knowledge in paediatrics, she now dedicates her time to publishing more articles on baby products for FindThisBest.