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- USA
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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
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Description
cybex sirona s 360 Cybex Sirona S 360 Rotational Convertible Car Seat with SensorSafeThe CYBEX Sirona S is the only Convertible Car Seat in the U. S. to feature an innovative 360 rotatable seat with load leg stability, linear side impact protection, and SensorSafe technology. The rotating feature makes it super easy to get your child in and out, and also convenient for switching between rear facing and forward facing positions. The load leg helps decrease rotation of the car seat while the side impact protection system absorbs impact
The CYBEX Sirona S is the only Convertible Car Seat in the U.S. to feature an innovative 360° rotatable seat with load leg stability, linear side impact protection, and SensorSafe™ technology. The rotating feature makes it super easy to get your child in and out, and also convenient for switching between rear-facing and forward-facing positions. The load leg helps decrease rotation of the car seat while the side impact protection system absorbs impact forces in certain crashes. Built into the chest clip, SensorSafe provides app alerts when potential unsafe situations arise. These features offer advanced safety protection for children and greater peace of mind for parents.
Specifications
- Innovative, one-hand 360° rotatable seat allows parents to easily get their child in and out.
- Load leg stabilizes the car seat and can reduce rotation in certain crashes by up to 30%.
- Only Convertible Car Seat in North America with a one-time vehicle belt installation for both rear-facing and forward-facing mode.
- EasyLock™bar reduces force needed for quick, simple, and secure installation.
- Smart-tech harness chest clip with SensorSafe™technology uses a Bluetooth enabled chest clip to send mobile app alerts to parents if their child becomes unbuckled, the car temp gets too warm, or unsafe situations arise.*
- 12-position recline adjustment even while the seat is in use.
- Linear Side-impact Protection absorbs up to 25% more impact in a collision (when compared to the same car seat without L.S.P. extended).
- Anti-rebound design reduces car seat rebound movement.
- Magnetic buckle holders make entry and exit from the seat a breeze.
- Dishwasher-safe cup holder can be positioned on either side of the seat.
- 12-position, height-adjustable headrest with a no-rethread harness.
- Dual-level indicators help ensure the proper car seat angle.
- Steel reinforced frame provides strength and durability.
- Harness pads and a 3-position padded buckle provide extra comfort.
- Removable newborn insert provides support for small babies.
- Innovative one-pull LATCH removal system.
- LATCH Connection storage inside the base when not in use.
- Rear-facing from 4 lbs. to 50 lbs. Forward-facing from 22 lbs. to 65 lbs.
- 2 Year Warranty
*SensorSafe is compatible with most vehicles 2008 or newer with an OBD II port. For some electric vehicles, contact CYPBEX as an additional adapter may be needed.
Dimensions & Weight
-
30” D x 19” W x 24” H
- 30.4 lbs.
- Use from birth up to 65 lbs. or 49 inches, following the directions in your user manual
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 351 reviews
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Product Reviews
★★★★★ 5
Excellent adjustable drafting chair
Size: 934-Z, Color: Blue
Excellent chair design, extremely comfortable and exceptionally easy instructions to follow making for simple assembly. Love the amply wide cushioned seat and ergonomic backrest. The height adjustment feature works perfectly as well as positioning of the foot ring . Having the ability to raise the arms is also a big plus! I highly recommend this product for attractive appearance, comfort features, functionality and operation. Really nice chair!
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Reviewed in the United States on April 13, 2026
★★★★★ 4
Comfortable, stylish, and perfect for long work hours 💗✨
Size: 934-Z, Color: Pink
I bought this chair because I spend a lot of time working and needed something comfortable but also stylish, and I absolutely love it.
Since I started using it, I feel much better support in my back thanks to the lumbar support. It makes a big difference, especially during long work hours. The adjustable footrest is also a feature I didn’t know I needed, but now I use it all the time.
The flip-up armrests are very convenient because I can adjust them depending on what I’m doing or move them out of the way when needed.
The pink color is beautiful and adds a soft, elegant touch to my workspace. It looks great in a modern home office.
It feels sturdy, well-made, and very stable. Overall, it’s a great purchase that improved both my comfort and the look of my workspace.
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Reviewed in the United States on April 29, 2026
★★★★★ 5
All-around thumbs up!
Size: 934W-Z, Color: Black
So far, so awesome. Easy to assemble, comfortable, arrived quickly and is exactly what I was looking for. I have a tall work bench in my new studio so I needed a chair that we could allow me to sit higher than a regular office chair and allow me to get off my feet after standing on the concrete floor. Plus its a nice looking chair that I am sure will last a long time. I love the flip-up arms and the lumbar support. This is just right!
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Perfect Balance of Comfort, Support, and Style!
Size: 934-Z, Color: Black, Size: 934-Z, Color: Black
I’ve been using this chair for a few weeks now, and I’m genuinely impressed with how much of a difference it’s made in my workspace. The mesh back is one of my favorite features—it offers excellent breathability and prevents that sticky, overheated feeling you sometimes get with solid-back chairs, even after sitting for hours. The seat cushion is firm enough to give proper support but still has enough give to keep me comfortable through long workdays. It feels like the perfect middle ground between soft and supportive.
The adjustable foot ring has been a complete game changer for me. I use a taller desk setup, and having somewhere to rest my feet makes a huge difference in posture and overall comfort. Whether I’m sitting upright for focused work or leaning back to read, it’s always at the right height.
The flip-up armrests are another smart design choice. When I’m typing, I like to have them down for support, but when I’m done, I can flip them up and push the chair neatly under my desk—saving space and keeping things tidy. The casters roll smoothly on both hardwood and rugs, so I can move around easily without scraping the floor or getting stuck. The overall build quality feels solid and sturdy, with no wobbles or creaks.
Assembly was surprisingly quick—everything was clearly labeled, the parts felt durable, and it only took me about 20 minutes from opening the box to sitting in the chair. The sleek, modern look is another big plus—it blends in perfectly with my home office décor without feeling bulky or taking up too much visual space.
If you’re looking for a chair that combines comfort, ergonomic support, durability, and style, I can’t recommend this one enough. It’s equally great for work, studying, or just relaxing at your desk, and it’s definitely been worth every penny.
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Reviewed in the United States on August 12, 2025
★★★★★ 3
OK for the price, but overall comfort is avergae
Size: 934-Z, Color: Mustard
Easy to put together, color (mustard) accurate to images, and while I understand this is not a high-end chair, I feel like it still needs to be rated for its quality.
Pros: the seat cushions are fairly comfortable and it rolls well. Adjustable footrest is easy enough and mostly sturdy.
Cons: For a tall office chair, it doesn't go up high enough. I actually had to lower my standing desk to sit at it, which then isn't where I want it when I'm standing now. It's also a bit wobbly. The seat area's attachment to the post isn't as solid as it should be for a tall chair, so while sitting, it does tend to lean/slope forward and wobble side to side. The lumbar support is not adjustable, so I'm not even really sure what it does. And the armrests are not very comfortable to use. Since they are hard plastic, they are just a bit too rigid to rely on for any comfort. They are basically there to hold on to when you're getting out of the chair.
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Reviewed in the United States on May 29, 2026
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