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Description
sirona cybex Cybex Sirona S SensorSafe Convertible Car Seat – Twinkle Twinkle Little OneThe CYBEX Sirona S is the ONLY convertible car seat to feature a 360 swivel seat with a load leg, linear side impact protection, and SensorSafe technology. Built into the chest clip, SensorSafe provides real time in app alerts when potentially unsafe situations arise including if a child unbuckles the chest clip, if the back seat becomes too warm or too cold, and if the driver unintentionally leaves the child behind. These features offer advanced
The CYBEX Sirona S is the ONLY convertible car seat to feature a 360° swivel seat with a load leg, linear side impact protection, and SensorSafe technology. Built into the chest clip, SensorSafe provides real-time in-app alerts when potentially unsafe situations arise including if a child unbuckles the chest clip, if the back seat becomes too warm or too cold, and if the driver unintentionally leaves the child behind. These features offer advanced safety protection for children and greater peace of mind for parents.
- ONE-HAND 360° SWIVEL SEAT: For easy loading and unloading of your child
- LOAD LEG: Absorbs energy and reduces crash forces on the child by up to 30% in a front impact collision*
- ONE-TIME VEHICLE BELT INSTALLATION: Allows seamless transition from rear-facing to forward-facing mode without having to re-install
- EASYLOCK™ BAR: Reduces force needed up to 4x for quick, simple and secure installation
- SENSORSAFE TECHNOLOGY: Bluetooth enabled chest clip sends mobile app alerts if a child unbuckles the chest clip, if the back seat becomes too warm or too cold, and if the driver unintentionally leaves the child behind
- 12-POSITION ON THE FLY RECLINE: Adjust even when the seat is in use
- LINEAR SIDE-IMPACT PROTECTION (L.S.P.): Reduces collision forces by up to 25% in a side impact crash*
- ANTI-REBOUND BASE: Reduces rebound forces in a rear or front impact crash
- REAR-FACING LONGER: Up to 50 lbs.
- MAGNETIC BUCKLE HOLDERS: Keeps harness out of the way for easy loading and unloading of your child
- DISHWASHER SAFE CUP HOLDER: Can be positioned on either side of seat
- 12-POSITION ADJUSTABLE HEADREST: Harness adjusts with the headrest for a proper fit as your child grows
- DUAL-LEVEL INDICATORS: Clearly indicate the proper car seat angle from either side of the seat
- STEEL REINFORCED FRAME: Provides strength and durability
- 3-POSITION PADDED BUCKLE: Allows for a secure fit while providing extra comfort for your growing child
- REMOVABLE INFANT INSERT: Ensures proper fit and support for babies
*As compared to the same car seat without this feature
Usage
- Child Age Minimum: newborn
- Child Age Maximum: 8 years
- Child Weight Minimum: 4 lbs.
- Child Weight Max: 65 lbs.
- Rear-Facing Mode Weight Limitation: 4-50 lbs.
- Rear-Facing Mode Height Limitation: 17"-49"
- Forward-Facing Mode Weight Limitation: 22-65 lbs
- Forward-Facing Mode Height Limitation: 28-49 in
- Forward-Facing Mode Age Limitation: at least 22 lbs
- Forward-Facing Mode Fit Limitation: top of ears below the top of the headrest
Specifications
- Dimensions: 24.5"D x 19"W x 25.5"H
- Weight: 30.4 lbs.
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
4.7 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 4
Cute toys but not for tough chewers. Might be too thick for my 6 lb girl
These are fun for the right dog, but not a good choice for all. They're a good size for medium dogs and some small dogs, but "small" is relative I guess and the size of this toy won't work for all small dogs. I definitely expected these to be smaller, though I measured and they are the size shown in the listing (for those in the US it's about 2 1/4" by 4 3/4"). I think one thing that surprised me is how tall (?) they are, or maybe thick? They show two measurements in the listing but not the other. That's the one that makes a big difference with small dogs, especially really small dogs like mine. I have a 6 lb Maltese with a teeny tiny mouth so I have to find toys that she can fit her teeny mouth around. She loves toys with nubbies and has other "spiky" toys like this, but so far hasn't been too interested and I wonder if it's because it's too thick. If she doesn't give them a try we have doggy friends who are big enough for them, more the 12-16 lb size.
There was a bit of smell on them when I first opened the package, but after giving them a quick wash (which I do with all chew toys like this) the smell was completely gone. Whatever it was must have just been on the outside because it hasn't come back.
I can't really say how durable these are, but I doubt they'd be good for tough chewers. They're not super soft but in the world of dog chewing they're medium at best. They're very cute and if you have a medium to soft chewer they could be a great addition to the toy basket. They also have a hole down the middle which could be filled with something to lick out, another way to keep them busy. Can't say any of this makes them worth the rather high price asked though.
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Reviewed in the United States on March 21, 2026
★★★★★ 3
Not safe
Both my dogs were eating pieces off of it I had to throw them away before we end up in the vet. Not safe :(
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Good for puppies!
I work with dog fosters and we recently got a new batch of puppies. These worked great for them, especially because they want to chew on everything!
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Reviewed in the United States on April 16, 2026
★★★★★ 1
Be careful, not for strong chewers
Sad to give a 1-star review on these bones, I had such high hopes. They’re a great size and design, and my dog was excited to get one when I gave it to her… until I happened to look down at her, having just given her the toy moments before, and she had chewed off a large chunk and was trying to ingest it! Fortunately I caught this and was able to get it out of her mouth before she swallowed it. My girl loves chewing on toys like this but I guess she’s too aggressive of a chewer for these(?) though she’s NEVER chewed a piece off of a toy before. Sadly this bone, and the remaining two in the bag, went in the trash.
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Reviewed in the United States on March 18, 2026
★★★★★ 2
too large and hard
This product is way too large for small dogs.
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Reviewed in the United States on April 10, 2026
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