Axkid ONE+ 3 – The only Plus Test–approved ISOFIX car seat from birth to 7 years
Axkid ONE+ 3 is the only ISOFIX car seat on the market certified by the Swedish Plus Test that allows rear-facing travel from birth up to 7 years (40–125 cm / 23 kg).
Secure installation in just 30 seconds, with a sliding legroom extension that offers outstanding space for growing legs while keeping a compact rear-facing design.
Age: 0–7 years
Weight: 0–23 kg
Height: 40–125 cm
Installation: ISOFIX
Certification: UN R129 (i-Size)
A true test winner
Axkid ONE has received multiple international awards and successfully passed the ADAC, one of the world’s most respected safety tests. In addition, it has passed the Swedish Plus Test, widely considered the most demanding crash test in the world.
15 years of safety
Axkid ONE+ 3 is the only rear-facing ISOFIX car seat approved by the Plus Test from birth up to 7 years, 125 cm and 23 kg. Designed to last, it offers a 15-year lifespan, ensuring safety for years to come — even for future siblings.
Adaptable and easy to handle
Weighing under 10 kg and offering up to 30 cm of adjustable legroom, Axkid ONE+ 3 delivers exceptional everyday usability without compromising on safety or comfort.
Simple, error-minimising installation
The 6-step installation process significantly reduces the risk of incorrect use, giving parents confidence that their child is travelling safely every time.
Easy access for growing children
Thanks to magnetic harness holders, placing your child in the seat is quick and effortless. The robust construction also allows older children to climb in and out independently.
Sleep comfortably, every journey
Soft, premium fabrics and a one-hand recline function ensure a smooth, comfortable ride, allowing your child to relax and sleep peacefully.
Technical specifications
Dimensions (L × H × D): 44 × 76 × 54 cm
Weight: 10 kg
Adjustable front support position: Yes
Seat depth: 32 cm
Seat-to-buckle distance: 18 cm
Support leg length: min. 26 cm / max. 52 cm
Support leg adjustment positions: 14
Approvals & features
Approved age: 0–7 years
Approved weight: 0–23 kg
Approved height: 40–125 cm
Fixing: ISOFIX
Machine-washable cover: 30 °C
Newborn cushion and inserts included: for 40–105 cm
ASIP (Advanced Side Impact Protection) included
What’s the difference between ONE+ 3 and ONE 3?
ONE+ 3 is approved from 40 cm, making it suitable from birth
ONE 3 is approved from 61 cm
For this reason, the ONE+ 3 includes an additional newborn insert, allowing safe use right from day one.
