CYBEX Sirona SX2 i-Size

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Overall

#279 in

Travel Car Seats

according to Reddit Icon Reddit

Sentiment score33% positive
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Last updated: May 29, 2026

Reddit Reviews

Reddit Icondrmalakas
12 months ago

I have used a Maxi-Cosi 360 of some sort, Cybex cloud z I-size and a sirona (interchangeable on same swivel base) and a seatbelt chomping one too, all on the back seats. For the isofix ones I bought an adapter from Bezos. I don’t put them in the front because they are savages and my front seats are custom upholstered recaros but I much preferred the stability of the isofix adapter.

Reddit Iconelvieevee
6 months ago

Our Maxi Cosi Cabriofix has done 2 babies and is about to have a 3rd; bonus is that it attaches to a Yoyo which has been particularly helpful when flying with the car seat. As our son got bigger we swapped him to a Cybex Sirona 360 which rear faces in our main car, and a Graco slimfit R129 which also rear faces for our second car and when we go abroad. Car Seat Safety UK is a good FB group (although they’re a bit militant about rear facing!) but they will do fit checks for you.

Reddit IconReasonable-Mistake41
9 months ago

Yes the 2nd row has good amount of space for car seats. One of the main reasons we went with a CRV. We have 2020 and installed the Cybex Sirona 360 car seat (one of bigger car seats)

Reddit Iconcrimson117
12 months ago

We've had both. Cybex 360 generally was just annoying enough to not bother using it.

Reddit IconPlane-Match1794
12 months ago

I'm a big fan of the 360 spin seats, much easier to load/unload from the car. My wife got the fancy Cybex one, but it is a very nice seat and will grow i to a booster seat. I got the less expensive Graco model since they don't ride in my car as often. Good luck!

Reddit IconTop-Establishment-56
9 months ago

CYBEX 360. Very pricey but worth IMO

Reddit Iconalunimum
9 months ago

I got the CYBEX car seat that swivels and it has lasted me 6 years and I got the Nuna demo grow stroller because of the option to use it with two kids, and I have used it SO MUCH over the last six years with my two children and I still use it to this day with a six year-old and a three-year-old they both still fit great

End of reviews

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