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Britax Römer DualFix i-Size review

£344.00 Typical price

Test score %

Key features
  • i-size
  • Baby to toddler
  • Extended rear-facing
Reviewed

The Britax-Römer Dualfix i-Size is a baby and toddler car seat that's approved to the latest car seat regulations. It's an updated version of one we've previously tested. It can be used rear-facing until your child reaches four years old. It also features a handy 360-degree swivel design, which should make it easier to get your child in and out. Did our crash testing uncover any issues with this baby and toddler car seat? Read our full test review.

Included in our expert review
  • Pros and cons
  • What is it?
  • How safe is it?
  • Is it easy to fit?
  • Is the seat comfortable?
  • Is there anything I should watch out for?
  • Is there anything else I should know?
  • Should I buy it?
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Test results

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 seats
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We have tested 189 child car seats and found that there are 19 Don't Buys and 48 Best Buys.
Range of Child car seat scores
  1. 0%
    Lowest score
  2. 65%
    Average score
  3. 82%
    Highest score
We'll show you where this model sits on the scale so that you can see how it compares to child car seats we've tested
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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.

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