Best Group 3 Car Seats of 2026
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Group 3 car seats are designed for children who have outgrown their toddler seats and are ready for a booster seat. These seats are suitable for children weighing between 22 kg and 36 kg, typically aged between 6 and 12 years old. They provide a comfortable and safe seating position for children in the car, with features such as adjustable headrests and side impact protection. Group 3 car seats are an essential purchase for parents who want to ensure their child's safety while travelling in the car.
At a Glance: Our Top Picks
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#TOP 3
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Top 10 Group 3 Car Seats
Kinderkraft I-Spark I-Size Baby Car Seat 3-12 Years
The Kinderkraft I-Spark Car Seat is designed for children aged 3.5 to 12 years, fitting those between 100 and 150 cm tall, providing a long-lasting solution as your child grows. It is lightweight at just 4.5 kg, making it easy for you to transfer between vehicles. The seat meets the latest R129 i-Size safety standards, ensuring it has passed rigorous side and front collision tests for your child’s protection. Installation is simple and adaptable, using your car’s three-point seat belt, meaning it fits both modern and older vehicles without hassle.
Cozy N Safe Logan Adjustable Car Seat
The Cozy N Safe Logan Seat is designed to grow with your child, featuring an adjustable headrest and toddler insert cushions for comfort and safety. The 5 point harness is suitable for toddlers up to 18kg, providing secure protection that can be hidden away as your child grows, transforming it into a high-backed booster. Fitting the seat is a breeze; it can be installed in various car models in just minutes using the vehicle's seat belt. Plus, the removable and washable covers make clean-ups easy after any accidents.
My Babiie Booster Lite R129 Car Seat
The My Babiie Booster Seat is designed for children aged 6 to 12 years, ensuring safety with its i-Size certification. It is easy to install using your vehicle's 3-point seatbelt, providing a secure fit in seconds. Enhanced comfort is a key feature, with extra padding and armrests to keep your child content during journeys. Its lightweight design makes it simple to transfer between vehicles or take on trips, making family travel hassle-free.
My Babiie MBCSB30 Highback Booster Car Seat
The My Babiie MBCSB30 Booster is designed for children aged approximately 4 to 12 years, ensuring a perfect fit for heights between 100 and 150cm. It meets the latest EU safety standards, giving you peace of mind that your child is secure during every journey. Installation is quick and straightforward, using the vehicle’s 3-point seatbelt, which means less hassle for you. Additionally, the seat offers superior comfort with extra padding, an ergonomic design, and armrests, making every trip more enjoyable for your child.
My Babiie Booster Lite R129 Lightweight Car Seat
The My Babiie Booster Lite is an i-Size certified backless car seat designed for children aged 6 to 12 years, fitting heights between 125-150cm and weighing 22-36kg. This seat prioritises your child's safety, meeting the latest EU safety standards and featuring a seat belt hook to ensure the shoulder belt stays correctly positioned. Installation is quick and straightforward, allowing you to securely fit the seat using your vehicle's 3-point seatbelt in seconds. For added comfort, the seat offers extra padding, an ergonomic design, and armrests, making every journey more pleasant for your child.
My Babiie Booster Lite Backless Car Seat
The My Babiie Booster Lite is a backless car seat designed for children aged 6 to 12 years, suitable for those between 125-150cm tall and weighing 22-36kg. It is i-Size certified, ensuring it meets the latest EU safety standards, so you can feel confident your child is secure during every journey. Installation is hassle-free and quick, using your vehicle’s 3-point seatbelt for a stable fit. Additionally, the seat offers superior comfort with extra padding, an ergonomic design, and armrests, making trips more pleasant for your child.
Joie Elevate Forward Facing Car Seat 1 to 12 Years
The Joie Elevate Car Seat is designed to grow with your child from 9 to 36 kg, offering a safe and comfortable journey from 1 to 12 years old. It features a 5-point harness for younger children, ensuring secure restraint, and easily converts to a belted booster as your child grows. The full side impact protection with Guard Surround Safety panels provides excellent shielding for your child’s head to hips, enhancing safety in case of a collision. Additionally, fully ventilated mesh sides and an integrated cupholder add comfort and convenience for both you and your little one.
globalkids i-Size High Back Booster Seat
The globalkids i-Size Booster is designed to keep your child safe and comfortable on every journey. It meets the strict ECE R129 i-Size safety standards, including side crash protection, offering you peace of mind. Suitable for children aged 3 to 12 years, it grows with your child thanks to adjustable headrest height and backrest width, ensuring a perfect fit as they get bigger. Installation is simple and secure, working with cars both with and without Isofix, making it convenient for any vehicle.
My Babiie MBCS50 Toddler to Booster Car Seat
The My Babiie MBCS50 Seat is designed to grow with your child, suitable from 15 months to 12 years, accommodating heights from 76 to 150cm and weights between 9 and 36kg. This means you can use it for many years, saving you money and hassle. Installation is quick and straightforward with a simple belted system, making it easy to secure the seat firmly in your car. Safety is a priority, with a 5-point harness and compliance with the latest EU R129 standards, so you can feel confident your child is well protected. The seat also offers excellent comfort with padded harness covers and an adjustable headrest, keeping your little one snug and comfy on every trip.
Cozy N Safe Tambu Backless Booster Car Seat
The Cozy N Safe Tambu is designed to provide your child with comfort during both short and long journeys, thanks to its deep memory foam padding and armrests. Weighing in at a lightweight design, it can be fitted in seconds, making it perfect for swapping between vehicles. The car seat is suitable for children weighing between 22kg and 36kg and is forward-facing, ensuring safety and convenience. Plus, the covers are machine washable at 30°C, making cleaning effortless for busy parents.
Frequently Asked Questions (FAQs)
1. What is a Group 3 car seat?
According to EU car seat safety legislation, a Group 3 car seat is suitable for children weighing 22-36kg. That's around 6 to 12 years old. A Group 3 Car Seat can take many forms. For example, they can face rear or forward, be a booster cushion, or a high backed booster with or without a safety shield.
2. When can my child go in a Group 3 car seat?
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 group car seat does a 4 year old need?
Once your child reaches 18kg in weight (around the age of 4), they'll need to move to a Group 2/3 car seat. Group 2/3 car seats cater for roughly ages 4 years to 12 years and are designed for children who weigh 15kg to 36kg (33-79lbs or 2 stone 4lbs to 5 stone 9lbs).
4. What are the groups for car seats?
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.
During our group 3 car seat research, we found 120 group 3 car seat products and shortlisted 10 quality products. We collected and analyzed 20,686 customer reviews through our big data system to write the group 3 car seats list. We found that most customers choose group 3 car seats with an average price of £36.16.
The group 3 car seats are available for purchase. We have researched hundreds of brands and picked the top brands of group 3 car seats, including Kinderkraft, COZY N SAFE, My Babiie, Joie, 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.