Britax Römer Dualfix review
The Britax DualFix car seat has passed the regulatory tests required by the ECE R44/04 standard to be sold as suitable for children from birth to when they weigh 18kg, and in our own more rigorous tests it achieved a good overall safety rating. However, the harness on the DualFix could not be secured tightly enough on our newborn test dummy - there was too much slack and our experts believe there is a small risk that a wriggly newborn could free themselves from the shoulder straps of the harness. For a safety issue like this we limit the total score overall to 20%, and the score drops below our Don't Buy threshold of 45%.
We've tested the latest version of the Dualfix, the Britax Römer DualFix i-Size. Click on the link to read more on how it performed.
Further readingUse our tools, tips and advice to protect you and your home How we test child car seats
Test score %
- Group 0 plus/1
- Baby to toddler
- Extended rear-facing
The Britax DualFix car seat is an Isofix-only Group 0+ and Group 1 car seat suitable to be used from birth up until your child weighs around 18kg (four years old). It features a unique 360-degree rotation, which makes getting your child into the seat and changing from rearward- to forward-facing simple. Our safety alert reveals why we've had to downgrade this seat to a Don't Buy. An updated version of the DualFix is due out Summer 2019. In the mean time, we've recently tested the i-Size version, the Britax DualFix i-Size.
- Pros and cons
- What is it?
- How safe is it?
- Is it easy to fit the seat?
- Is the seat comfortable?
- Is there anything else I should know?
- Is there anything else I should watch out for?
- Should I buy it?
- StageBaby to toddler
- Direction of travelRearward-facing Group 0+/1/ forward facing Group 1
- Manufacturer URLwww.britax.co.uk
Make smarter choices
- 0%Lowest score
- 65%Average score
- 82%Highest score
Best baby car seats
Key safety differences between baby car seats and child car seats. Why babies need more protection in car crashes and how to keep them as safe as possible. Plus car seat carrycots vs baby car seats.
How to buy the right child car seat
Get our expert advice on which car seat you need for a newborn, baby or child. We explain car seat weight groups and i-Size, and give top tips on how to buy the best child car seat when you head to the shops.
Car seat weight groups
Which? guide to car seat weight groups. From group 0+ 0-13kg (birth to around 12-15 months to Group 1/2/3 9-36kg (around 9 months to 12 years), find out why car seat weight groups matter and when to go up a car seat group