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Cybex Sirona SX2 i-Size review

£320.00 Typical price

Test scoreShow Context

Key features
  • I-Size toddler to child
  • Toddler to child
  • Extended rear-facing seat
Expert review

The Cybex Sirona SX2 i-Size car seat is billed as simple to set up and a dream to use. But can this extended rear-facing car seat really be so straightforward and also safe? We reviewed it 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?
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Last checked by Which?

February 2022

First reviewed by Which?

October 2021

Released

June 2021

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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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.

Best Buys and Don't Buys
We have tested 222 child car seats and found that there are 23 Don't Buys and 35 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
Sign up to unlock Best Buys and Don't Buys
Full Access first month £5, then £9.99 per month, cancel at any time

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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