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Description
cybex sirona s car seat installation 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 21 reviews
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Product Reviews
★★★★★ 4
Good Teaching & walking leash, heavy duty
Size: Large(1/2"-6ft), Color: Black
Very good dog leash for heavy or big dogs. Not for the little guys. Be sure to keep it above their neck as to not choke them. Good training leash for walking large dogs or very strong puppies of a larger breed for training purposes. Walking everyday is so good for them and you! Helps keep them following you, walking on your side or while your , rollerblading, cycling .. Teaching relaxing ways to walk your dog, gently n not choking them by keeping it high behind their ears! The dog will love you. Watch Dog Whisperer on how to walk your dog safely n dog not pull n walk you! If your dog is really heavy, strong n big, get the strongest one. Be sure to keep their regular I’d collar on. This is not a replacement for a collar. Do not ever use this to tie up your dog, not safe. Just have a daily long walk with your pet dog. Mine is 45 lbs and walks wonderfully with me with this leash. No pulling, tugging or jerking. Note: can be chewed by puppies. Never leave them alone with leash on.
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Reviewed in the United States on April 19, 2026
★★★★★ 5
The best thing ever for you and your dog!
Size: Large(1/2"-6ft), Color: Black
This leash has been a blessing. I rescued a dog several years ago and I'm not sure what the previous owners did to him but there was no way I could get a harness or collar on him. I tried and being that it's just me and he is about 130 lbs, it wasn't going to happen.
I ran out of ideas but saw one trainer video where she slipped it on her dog while giving her dog a treat. That was a great and all but Thor has never taken a treat from my hand. I would have to put it down. Anyway I did and slipped the leash around him and it worked so smoothly. He was surprised by it but I praised him for it.
I do this daily now because the slip leash is so easy to work with. I can't thank you guys enough.
The quality is there and made well. If you need to train your dog on a leash, you can't go wrong buying this.
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Reviewed in the United States on January 26, 2026
★★★★★ 5
Good, heavy duty leash
Size: Large(1/2"-6ft), Color: Purple
I bought 2 of these leashes for my dogs after seeing a dog trainer use something very similar. Before this, I was using a conventional clip-on leash and a flat collar, and I found that my dogs pulled a lot.
Well, my young and insane terrier mix still pulls like a freight train, but my older dog has responded well to this leash. It's been significantly easier to get him to heel and to move him along when he decides to spend an entire day sniffing a patch of grass. I'm sure my younger dog will calm down a bit when I work with her some more, and this leash will help.
The rope is stout and it has reflective thread woven into it. I didn't realize how visible it was until a light shone on it. I wouldn't rely on it to keep you safe in low visibility areas (wear a reflective vest if you walk at night and there's traffic) but it can't hurt and is a nice touch.
The rope is soft enough that it doesn't chafe either dog's neck, and it's thick enough that it doesn't hurt my hands even when the dogs spot a rabbit or squirrel and YANK as hard as they can. I certainly have no fear of this leash breaking-- it looks like you could tow a small car with it.
This is an excellent, inexpensive slip leash to use when walking or training an obstinate dog.
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Reviewed in the United States on September 3, 2025
★★★★★ 5
Great Quality & Easily Useable!
Size: Large(1/2"-6ft), Color: Yellow
These are the BEST leashes, not only for new dogs that are training, but for every day usage. My dog is 40 lb. Bernedoodle and he is off-leash a lot of the time because he wears an e-collar and responds well to this. So these leadshes that slip on and off easily are terrific! They are great quality, nice weight, perfect length at 6 feet. I have several in different colors.
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Reviewed in the United States on April 23, 2026
★★★★★ 5
Great lead. Beautiful color that complements my baby's fur
Size: 4ft - Large (1/2"), Color: Red, Size: 4ft - Large (1/2"), Color: Red
Very good. Just wish my dog wasn't so wuick to chew things up. Multi-purpose and getting a replacement lead was simple! Arriving tomorrow.
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Reviewed in the United States on May 29, 2026