Britax Römer Baby-Safe 3 i-Size + Flex Base iSense review
Test scoreShow Context
- I-Size baby
- Baby
With a lie-flat function and rotating seat, the new Britax Römer Baby-Safe 3 i-Size car seat with Flex Base iSense promises a comfortable and easy-to-use ride for your child. But how safe does this infant carrier keep them in a crash? We reviewed this car seat to find out.
What's included:- Pros and cons
- What is it?
- How safe is it?
- Is it easy to fit?
- Is the seat comfortable?
- Is there anything else I should know?
- Should I buy it?
- Where can I buy it?
Last checked by Which?
February 2022
First reviewed by Which?
October 2021
Released
May 2021
Technical specifications
General
- StageBaby
- Direction of travelRearward facing
- Manufacturer URLHttps://www.britax-romer.co.uk/
The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.
Find out how we test child car seatsPut us to the test
Our Test Labs compare features and prices on a range of products. Try Which? to unlock our reviews. You'll instantly be able to compare our test scores, so you can make sure you don't get stuck with a Don't Buy.
- 0%Lowest score
- 65%Average score
- 82%Highest score
Put us to the test
Our Test Labs compare features and prices on a range of products. Try Which? to unlock our reviews. You'll instantly be able to compare our test scores, so you can make sure you don't get stuck with a Don't Buy.
Suggested alternatives
Related articles
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 explained
Guide to car seat weight groups explains when to move your baby or child up a car seat category. From group 0+ up to 13kg (birth to around age 12-15 months) to Group 1/2/3 9-36kg (around age 9 months to 12 years), find out why car seat weight groups matter and when to go up a car seat group.