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Description
cybex sirona s size 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
4.6 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 4
Decent book with good techniques for kids
Format: Paperback
Cute book that my two and a half year old will reach for every now and then. She'll try mimicking what they're doing, like clenching her fists and blowing bubbles, while she reads it. However, she doesn't really use the techniques when she is mad and just telling her "we don't hit when we're mad" and "we don't hit our friends/mama/daddy/etc" has been more effective. But maybe when she's older this will help if she starts hitting again.
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Reviewed in the United States on September 12, 2025
★★★★★ 5
Book
Format: Paperback
Good book
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Reviewed in the United States on May 23, 2026
★★★★★ 5
Perfect aged book
Format: Paperback
I truly liked this book for our son when he was 3 years old. It was done very simple and to the point. It allowed you as a parent to add on if you wanted and to talk about the pages. This was a very helpful book in our house.
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Reviewed in the United States on January 2, 2026
★★★★★ 5
Engaging & Effective for toddlers w/Autism!
Format: Paperback, Format: Paperback
My almost 3 year old was recently diagnosed with Autism. He struggles with transitions and also has a speech delay, which often contributes to big meltdowns when he doesn’t get his way. He’s been a “hitter” since about 18M… and it’s so hard! I know he has big emotions and can’t regulate them easily. This book is FANTASTIC! It’s easy to read and has cute and relatable illustrations.
It can be a little repetitive, but that’s what helps get the point across. Let’s face it, my son is also very repetitive, so it seems to resonate with him. It talks about different feelings and emotions, how it’s ok to feel that way, and how to handle them without hitting. For example, you can use your words to ask a grownup for help; you can draw an angry picture; you can squeeze your hands into a ball and release them, etc. There’s different options for different scenarios, and each one is described in a way that toddlers can figure out how to do it themselves. His favorite is to squeeze his hands into a fist, or give his body a big “squeeze hug.” I’ve already caught him doing that a few times instead of slapping me!
It’ll take practice (like the book mentions) but I think he’ll be able to self-regulate better with some of these ideas!! I also have some new phrases to use and picked up some sign language. I love the tips for caregivers in the back!
If you have a hitter (especially one on the spectrum), you need this! I actually like it better than our other book, Hands Are Not for Hitting. Similar story line, but this one is more detailed and better suited for older toddlers. I highly recommend it!!
Hope this helps ☺️
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Reviewed in the United States on March 14, 2022
★★★★★ 5
Wonderful Book for Toddlers and Up!
Format: Paperback, Format: Paperback
Great book for toddlers or older! I bought this for my 2.5 y.o. and she would request me to read it every night. She would demonstrate some of the techniques described in the book at her own voilition, which was awesome because it showed that a couple methods were 'sticking.' The next step was trying to help her to perform the technique when needed....like when wanting to hit her brother, which is a bit more challenging!
The illustrations are beautiful, large, and colorful. There's one sentence that I think is confusing for little ones to comprehend, such as the breathing method you'd use when blowing bubbles or a pinwheel. I wish there was an "as if" in there so it's taken less literally. However, the flow of the book is nice. It goes through situations which might occur, how you might feel, and then the techniques. Love the page that summarizes all the techniques and the 6 strategies in the back for parents. The pages are a slightly thicker than most paperbacks for kids - more durable for sure, which I appreciate. It's written by a child psychologist, so you know it's going to be a book of quality!
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Reviewed in the United States on January 23, 2025