Best i-Size Car Seats of 2025
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i-Size car seats are a new standard for child car seats that have been introduced to improve safety and make it easier for parents to choose the right car seat for their child. The i-Size regulation requires car seats to be tested with a new side-impact crash test, use ISOFIX connectors to attach the seat to the car, and be appropriate for a child's height rather than just their weight. These car seats also feature improved head and neck protection, and some models are adjustable to grow with your child. Investing in an i-Size car seat can provide peace of mind and help keep your child safe on the road.
At a Glance: Our Top Picks
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Top 10 i-Size Car Seats
My Babiie i-Size 360° Spin Car Seat
The My Babiie Spin Car Seat is designed for use from birth to 12 years, accommodating children from 40-150cm. Its hassle-free installation with ISOFIX connectors and a support leg ensures quick and safe setup, providing peace of mind for parents. With a full 360° rotation, loading your child becomes effortless, allowing you to easily access them from the side. Safety is paramount, as this car seat meets the latest EU safety standards and features Extended Rear Facing and Side Impact Protection, ensuring your little one travels securely.
Graco Turn2Me 360° Rotating Car Seat
The Graco Turn2Me Car Seat is designed with your child's safety and your convenience in mind. Its 360° rotation allows you to easily place your little one in the car without awkward bending. The ISOFIX installation makes securing the seat a breeze, as it clicks into place with ease, with colour-coded indicators for reassurance. Additionally, the TrueShield side impact protection pod enhances safety during a collision, protecting your child from head to hips. This means you can travel with peace of mind knowing that your little one is well-protected.
Graco Junior Maxi i-Size Highback Booster Seat
The Graco Junior Maxi Booster offers excellent safety and comfort for your child, suitable for ages approximately 3.5 to 12 years. With its 10-position height-adjustable headrest, you can ensure a perfect fit as your child grows. The soft cushioned seat pad provides a comfortable ride, making long journeys more enjoyable. Additionally, the retractable cupholders are a great feature, allowing your child to keep drinks close at hand, promoting independence and convenience during travels.
My Babiie i-Size 360° Spin Car Seat
The My Babiie Spin Car Seat is designed to grow with your child, accommodating ages from birth up to 12 years. With hassle-free installation using ISOFIX connectors and a top tether, you can ensure a secure fit in your vehicle. The full 360° rotation feature allows for easy side loading, making it convenient for you to place your child in the seat. Safety is paramount, as the seat meets the latest EU safety standards and includes Extended Rear Facing (ERF) and Side Impact Protection for added peace of mind during every journey.
Maxi-Cosi Tanza i-Size High Back Booster Seat
The Maxi-Cosi Tanza Booster Seat is an excellent choice for children aged 3.5 to 12 years, accommodating those between 100 and 150cm tall. It features advanced i-Size safety standards, ensuring secure ISOFIX attachments for peace of mind during every journey. The foldable design makes it easy to transport or store, weighing just 5.32kg. Additionally, the G-CELL side impact protection system enhances safety by reducing the risk of injury during accidents, allowing you to travel confidently with your child.
CYBEX Gold Pallas G i-Size Child Seat
The Pallas G i-Size Car Seat is designed for children from approximately 15 months to 12 years, ensuring longevity and adaptability. Its patented 3-position adjustable headrest allows you to find the perfect fit as your child grows. The built-in side impact protection enhances safety during travel, giving you peace of mind. Additionally, the one-hand adjustable reclining position ensures your child can relax comfortably on longer journeys, making every ride enjoyable for you both.
Maxi-Cosi CabrioFix i-Size Baby Car Seat
The Maxi-Cosi CabrioFix i-Size is a lightweight and rear-facing car seat designed for infants from birth to approximately 12 months. Weighing just 3.2kg, it is easy to carry, making travel with your little one hassle-free. The seat is built to the highest EU safety standards, ensuring your baby is secure during every journey. Additionally, the large sun canopy provides essential protection from the elements, helping to create a comfortable environment for your child while on the go.
Kinderkraft JUNIORFIX2 Car Seat for Ages 4-12
The Kinderkraft JUNIORFIX2 is a versatile car seat suitable for children aged 3.5 to 12 years, accommodating heights from 100 to 150 cm. Its I-Size certification ensures top-notch safety, allowing you to drive with peace of mind, knowing your child is protected. The seat features reinforced side protection systems that absorb impact energy, keeping your little one safe. With easy installation via ISOFIX connectors and clear indicators, you can secure the car seat effortlessly, eliminating worries about incorrect fitting.
Maxi-Cosi Titan S i-Size Car Seat
The Maxi-Cosi Titan S is a versatile car seat designed for children from 15 months to 12 years. With its ISOFIX connectors and top tether, you can easily secure the seat in your vehicle, ensuring your little one's safety. The G-CELL side impact protection offers additional safety by dispersing forces during a side collision, protecting the head, neck, and shoulders. Furthermore, with five recline positions, you can adjust the seat for your child’s comfort, whether they prefer sitting up to enjoy the view or reclining to relax during a journey.
Silver Cross Discover i-Size High Back Booster Seat
The Silver Cross Booster Seat is an i-Size car seat suitable for children aged 4 to 12 years, ensuring safety and longevity for your little one. Its lightweight design and ISOFIX system make it incredibly easy to secure in your vehicle with just a simple one-click attachment. For maximum comfort, it features an adjustable headrest with 10 positions and a 4-position recline, perfect for accommodating growing legs. Additionally, the Side Protection System (SPS) provides essential security during every journey, keeping your child safe and sound.
Frequently Asked Questions (FAQs)
1. What does I-Size in car seats mean?
'i-size' is a new EU safety regulation for child car seats (ECE R129). It was introduced in July 2013 to make child car seats easier to fit, provide better protection from side impacts and keep children rearward-facing for longer. i-size only applies to Isofix seats.
2. Are I-size car seats safer?
i-Size car seats are considered to be the safest, with improved head and neck protection. That's because: Side-impact crash test results are assessed as part of the i-Size standard. i-Size safety tests are completed using advanced Q-dummies, which have more sensors than the dummies used for the R44 test.
3. Do you need an i-size car seat?
i-Size requires children to sit rear-facing until they're at least 15 months old. This is longer than the earlier regulations, which advise children to sit rear-facing until they weigh 9kg. Some new i-Size car seats will enable your child to sit rear-facing up to the age of 4 years, if you wish.
4. What age is Isize car seat?
i-Size baby - Newborn to 85cm (0 to around 15 or 18 months) i-Size baby and toddler - Newborn to 105cm (0 to 4 years)
During our i-size car seat research, we found 149 i-size car seat products and shortlisted 10 quality products. We collected and analyzed 54,314 customer reviews through our big data system to write the i-size car seats list. We found that most customers choose i-size car seats with an average price of £114.95.
The i-size car seats are available for purchase. We have researched hundreds of brands and picked the top brands of i-size car seats, including My Babiie, Graco, Maxi-Cosi, Cybex, KinderKraft. The seller of top 1 product has received honest feedback from 405 consumers with an average rating of 4.5.
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.