The CYBEX Sirona S is a phenomenal car seat, albeit decently challenging to install. When looking for a easy to operate car seat for smaller family cars, this seat received excellent reviews, and we now know why: it is very well constructed with advanced safety features we have not seen in any other car seats, including active monitoring systems linked to your car's OBD-II diagnostics port. We appreciate the ability to transition our child from backwards facing to forward facing at the push of a button / turn of the seat. Additionally, the set it and forget it nature of this seat makes it a no-brainer for active families that are sick of spending unnecessary time carrying, latching, and belting their kids into traditional car seats. Once you are able to get the seat installed (I would suggest having a partner help you with a few steps in the installation process, an extra set of hands is very helpful), this seat rocks. Absolutely worth the cost!

Love rotating the seat!

My baby unclips himself from the harness within two minutes. It’s very easy to do. Also, it’s impossible to install on your own. I had to pay for someone else to do it. Pretty disappointed overall considering it’s one of the most expensive car seats on the market.

My girl loves to stay in her car seat, easy to install and like the quality.

The concept of this car seat is great, but it is heavy and difficult to install if you don’t have at least a minivan or a lot of space. My daughter is 3 and weighs less than 40 lbs, she has cubby little legs and I find that I’m pinching her every time I clip in the seatbelt if I’m not careful. There is not enough length to sit the buckle comfortably on her crotch. I was hoping to use this for a long time, but sadly we’ve outgrown it and I’ll need to spend another 400 dollars on another car seat before she can safely switch to booster.

We love this carseat! We were transitioning out of our Doona, and looking for something that would make life easier with our 23lb 6mth old. This works great, she's comfortable and has plenty of room to grow! We also get lots of compliments on how clever and cool it is! Thanks!

I have twins so I purchased two Cybex siona S car seats. I transferred the boys from their infant seats to these at about 11 months. They are so much more comfortable now. I love the ability to flip them forward facing with such ease. And the fact that they don’t need to be reinstalled once the boys are ready to be forward facing. Also, they rank very high in safety among other car seats. Highly recommend!

We love this seat. it has a few small issues, like the swivel can some times be difficult, and its very heavy. other than that its worked great!

This seat is huge and would not be appropriate for a lot of cars without having to put the front seat all the way forward. We could not get a secure install so ended up having to have a professional install but I still don’t feel it is as secure as our Nuna Rava seat. The sensorsafe component is also terrible. You will get dozens of alerts for temperature etc. while you are in the car. If you are in the car in the summer and you know it’s hot you don’t need a critical alert notification every 90 seconds while the car is on. This could be life saving if it only alerted when the car is off (ie in the case a child was left in the car), but the excessive alerts just causes you to turn off the alerts thus making it useless. It does seem comfortable and the rotation is convenient but for the money I wish I got another Rava instead.

We really love this car seat, it is really the best one on a market. We tried multiple brands and this one is superior. We have no complaints at all and like all the futures especially ability to rotate it 360*.

This is a good concept for a car seat and very convenient for loading and unloading a kid, but there were a few things that could have been better. The cup holder broke off the first day. I wish the cup holder would’ve been more sturdy and not a clip on. The load leg takes up a ton of room and we had a very hard time getting it secure and tight. My little one would get super fussy if he was in it for longer than 30 mins or so and I don’t know if that’s just him being antsy or if the car seat wasn’t comfortable enough. We had to replace due to something getting in the car and chewing on the straps. Cybex does not sell replacement straps.

I enjoy this new and improved car seat that is easy for a grab and go. Able to put baby in and out of car seat very easily with the swivel design. I recommend this car seat for first time moms or multiple children.

So convenient! Makes life so much easier. My child feels safe and secure

Great product but very difficult installation.

I’m all about find ways to make daily tasks easier and this car seat does that. This car seat wasn’t available when my son was younger and I always bumped his head trying to load him in. With the Sirona S I love being able to face the seat towards me for loading and unloading. I’m sure my daughter loves it too because I’m not accidentally hitting her head on the car. We started using the Sirona S at 14 months when she outgrew her infant seat and plan to continue use for as long as we can. I highly recommend this seat.

My baby is very happy in this car seat. However it was a nightmare for my husband and I to install. We still don’t know how to make larger the seat belt

We've owned a ton of car seats and this is by far our favorite! The swivel is life-changing and all of the parts feel smooth to maneuver.

I love how this feels extremely soft. I do wish I would’ve gotten the black instead of the grey because grey shoes EVERYTHING. But one thing I didn’t like about this car seat is the installation. My husband things it’s simple but every single time I install, I don’t feel comfortable with the finish. I love how it swivels for easy access. It does take up quiet a bit of room. But overall, it’s study, safe, made high quality.

We love this so much!

I had a hard time at first with the install, but turns out I wasn’t checking the seat correctly. I consulted the website Car Seats for the Littles and they have a page about how to check the seat only at the beltpath. Turns out I had installed the seat correctly the first 3 times. My child is not quite grown out of her infant seat but we decided to purchase a new one as she is getting heavy to carry in the old one. I love the rotation feature and how it has a coupe positions for her rear facing. She seems so comfortable in it. Cybex has stated the feather doesn’t have to be used in the forward facing position as long as the load leg is in use. This makes the rotation feature available. I will probably still use the tether at that time as my hope is she will be able to climb in the seat herself. Got it for the best price here on Albee so I’m pleased overall. The photo shows her rotated but she does not ride sideways. The seat must be locked into place before the car moves.

I purchased this car seat during Black Friday and got the best price and service. The car seat came so quickly. I couldn’t be happier with the product and would definitely buy it again from Albees

I gave it 3 star considering all factors. Pros: Seat turns and make putting baby in a lot easier when it's rear facing. Cons: Difficult to install. Seat and front of the base still move after a very tight installation. Makes me wonder about it's safety. Fabric is so so and on the cheap side. Operation is a bit awkward.

I really wanted to love this carseat, and I actually did really like it for the first few months when we had a large SUV and could use the leg to help support the carseat. It was still incredibly difficult to install correctly and get it to stay stable, but we figured it out and loved it for about 3 months. We had to get a new car (still an SUV, just a little smaller) and we have tried every possible method and even watched many videos on installation and just can't get the seat to stay tight. I'm very concerned for my baby's safety, as the carseat wiggles around (way more than the 1 inch that is "safe") within a day of re-installing. While I love the 360 feature of the carseat, the hassle I have to go through to constantly re-install it and the fear I have for my child's safety is simply not worth it. I've been trying to get in touch with Cybex for over a month about the issues I'm having and I'm getting ignored. For the price paid for this carseat, I'm really unhappy with the results and the service I (haven't) received.

This car seat was one of the highly reviewed and recommended car seat in my community. This one was always on the top 3 convertible car seat and the main pros was that it saves your back. And it really does! Other fixed car seats require you to tilt your baby to the side, squeeze him/her in to put the belt in, fight them in a weird position, all happening towards the side. But this one, since you can swivel the chair to make your baby face you, everything is so much easier. You can either stand at the outside or you can face your baby when you are sitting next to them inside the car. One downside is that the supporting leg isn't that sturdy. I did install it properly and it has the green sign on but I just always have a feeling that it might have issues and may cause the car seat to either shake or slide (it won't but just feels like) to the side. One major downside - you don't have ease in your mind. Could be my personal issue but that single supporting leg just doesn't seem sturdy as other ones.

This carseat was so difficult to install, especially in my tiny BMW I3, but I needed a swiveling carseat to make the car work. Took me roughly an hour with the help of my husband to get it to not wobble around. And there is this silly stupid plastic compartment door that keeps POPPING off. But otherwise, its lovely. The quality is obviously there. My babe is really happy in it and he absolutely hated his infant car seat, Nuna Pipa. It's easy to get him in and out. The swivel feature is very cool. I generally like the thing, just can't believe the struggle to get it properly installed. I have yet to use it facing forward. Only rear facing.

I love this car seat first for safety and secondly for it is convertible

I procrastinated installing it because I was intimidated, but it wasn’t as hard as I feared. I used the YouTube instructions. I have not been successful hooking up to the safety sensor, but working on it. Will call help line if I am not successful today. Seat, with all the padding, looks really comfy, though wish it inclined a bit more. I have a tiny 2 month old(within weight limits) who is a bit more upright than I like. I have a bad back, so love that it revolves towards me so I don’t have to twist to get little guy in. Expect it to be even better as he gets older and bigger! -Overall, it’s expensive, but hopefully worth the $ in the long run.

I initially got this car seat for my rear-facing son but often used it for my forward facing daughter as well. The swivel and no re-thread hardness made it very convenient to switch between forward and rear facing. I will say, however, it was very difficult to install securely. I quickly realized I had been spoiled with my Britax Clicktight car seat. No matter how hard I tried I was never able to get the installation quite as secure as my clicktight. I now have this car seat in my husbands car so he can take one of the kids without having to totally re-install a carseat to be forward or rear facing. One major plus to this carseat is that its machine washable and does appear to be very comfortable for my little ones. Biggest con is the installation. If you are going to be taking the car seat in and out, I would recommend a different one.

I love this car seat! Definitely watch a youtube video for the installation, but once you figure out how to use that lever thing, it's pretty easy. We had the nuna before with the same stability leg thing, so having that on the Cybex is comforting. The swivel makes taking baby in and out of the seat SO much easier! No more head bumping against the end of the car. It's also great when we're waiting in a parking lot or something to turn baby towards you to play for a bit. There's a gap between the top and bottom cushion which is a little annoying because I know there's a pile of cheerios gathered in there but that's probably true of any car seat. The senor is super annoying so we disconnected but the temperature gauge on the seatbelt is great. I'm sure the Evenflo is also wonderful but I don't regret paying what we paid for the Cybex.

I have always used Britax or Chicco seats with my 3 children and have always been very happy with them. I decided to get the Cybex seat because with my bigger SUV and also being on the short side it was difficult to put my 1 year old in the car. This seat has been a life saver, I no longer struggle to get him in the seat. I love the swivel function and my son is happy and comfortable. I am so glad I purchased this seat.

Love this car seat. It's so easy to put my little one in it and get his properly fastened! I swivel him around and off we go. I will say it's very hard to install and I had to call one of their professionals for them to help me install it. The seat is very comfortable for my big boy!

The install is annoying & difficult. Customer support from Cybex is a week long wait. Watched many YouTube install videos & finally figured it out. There’s a lot of info to know if you installed it properly. Example, only use the base to see if it’s done well. Don’t sway the top, it’s supposed to sway. Really easy to turn, amazing recline! Head never goes forward when toddler falls asleep.

This was not the eaiest car seat to install and it had some wobble at first, so you will need to put in the time to get it in snugly. That said the wivvel feature is usful for so many reasons. It's easy to load your little one into the seat and roating it when they are not with you allows the front seat to be used!

We LOVE this car seat! It may be one of the most expensive car seats on the market but it is worth every penny. It’s so convenient to get the baby in and out without straining our backs. I can tell it’s a comfortable ride for the baby too. He stopped screaming at red lights once we installed it. I was nervous about the price before we got it but 10/10 I would recommend this after using it.

I've had this car seat for about a year now and have absolutely loved it!! The swivel is great for daycare drop-off and pick-up, I love the SensorSafe feature (we thankfully haven't needed it, but it gives me peace of mind), and the load leg is a big win in my book as well! It's super easy to take the cover off to clean and put back together. Overall, a great car seat that I would definitely recommend.

Thus car seat feels so luxurious and hugs my baby so perfectly. I love the swivel and I helps to not break my back.

I recently purchased this car seat, and so far we are all loving it! I definitely wanted the swivel feature, and it has been so worth it for me. My daughter didn’t care for her last seat as time went on, but she’s been happily sitting in the Sirona S. I highly recommend!

This car seat is HUGE and heavy But I must say the swivel helps a lot since I just broke my elbow and use 1 hand a lot And the sensor safe works well with the app and the chest buckle even glows blue for a second after the baby is buckled in My son is 11 months and fits nicely with room to grow Not sure how comfortable when he’s 2 with longer legs

We have been using the Cybex Sirona S for 5 months now and it is wonderful! The swivel feature makes getting out LO in and out of our vehicles so easy! The Sensorsafe alert reassures us that we will be less likely to forget about the LO in the car - especially when tired, full-time working, parents of a toddler are sleepy and have not yet had enough coffee or rest!

Love love love this car seat!! It’s so easy to get my son in and out now with the swivel feature. Also the install was pretty easy and it feels very secure with the load leg. Love all of the safety features and know we will use this car seat for years to come. My only con was that it’s so expensive. But I am so happy I found it on Albee for a discount!! Love using this site for big purchases.

This is by far the best convertible car seat. My husband and I have back problems and this really makes parking our baby in and out so much easier. Shipping was excellent. I am pleased with this buy.

My son totally Outgrew the Doona and I was totally lost what to get for a car seat. This one is amazing, the material is so soft and comfortable, he looks so happy in it with plenty of room to grow, but extremely safe. He also likes the options of sitting up or reclining. It was not difficult to install once we actually figured it out and besides it being heavy wouldn’t be the end of the world if we had to move it from car to car.

Let me first say that I love this car seat, but we are having to send it back over a major safety concern. Our 15 month old continues to push the chest latch release while driving. The spring on the single button release takes no effort to release and we can't take that risk. Thank goodness for the OBII sensor for constantly notifying us that this was happening. This is only the only complaint about this seat, but it's a huge one for me and my family as I'm not willing to take that risk.

This carseat is worth every penny. It's a task just getting out the door with a little one so making it quicker and easier to put them in their car seat is such a time and tear saver! It's not super easy to move from car to car so wouldn't recommend if you have to move it around often.

We love it

The product is great, baby loves the seat and gets so excited every time she goes in it. The downside is, I have a 2013 Dodge Durango and I had the worst issues getting it installed correctly and took forever!

makes my life ten times easier getting my daughter in and out - just a little bulky.

This car seat is very well made, and feels modern and cool. The swivel feature is the main reason to buy this car seat. Because otherwise I would just buy something less expensive. Installing it was a little hard, but now that’s it’s in its nice to know it sits in rear facing it forward facing so I don’t have to install it again.

I actually don’t agree with the other reviews saying it was hard to install, I thought it was very easy to install actually. I love the swivel affect, during my pregnancy I ended up having a really bad back. I drive a Tesla model Y and not having to bend over to put my son in the car is amazing. The only downfall is when you have the car seat facing the front, you have to use the tether. This does not allow your car seat to swivel, which defeats the purpose of the swivel affect. I’m sure you can use the car seat without the tether,But I like my car seat to be very tight and sturdy. The leg was a little janky, every now and then it would turn red. So if that is some thing that concerns you, you might want to get another car seat.

I love this car seat so much I purchased a matching one for our second car.