Car seats go by height/weight. There's no such thing as age. So if your baby ends up on higher percentiles a seat like that might not last them until safe booster seat age which is closer to 6 years old. You are best looking at an infant carrier and then extend rear-facing seat. Look into Avionaut, Axkid, BeSafe and Britax. But best thing would be going to a retailer and getting them to fit it in the car for you but also for you to try them out.
We have the Sirona T however we didn’t use this from birth. From birth we used the Cybex Cloud T and really liked it. We only moved him to the Sirona about 10 months x
Besafe any day. I don’t think Sirona would give a newborn a good fit. If I have another baby the Besafe one is the seat I’d go for. I’d get the Besafe Twist B though as it’s Swedish tested and Turn B isn’t x
I wish I’d known about extended rear facing! Axkid is the brand we would have invested in had we known
We have the twist version of the turn and LOVE ittt, cybex isn’t suitable from birth xx What centiles does baby follow?