The Cybex Sirona S is the only convertible car seat that protects your child and your back. The car seat rotates 360 degrees, allowing you to rotate the seat toward your car door while helping your child in and out.
The NEW CYBEX Sirona S is the first Convertible Car Seat in the U.S. to feature an innovative 360° rotatable seat with load leg technology, making switching between rear-facing and forward-facing positions quick and easy.
The Sirona S load leg stabilizes the seat and can significantly reduce crash forces. These features, combined with an EasyLock bar for quick, simple and secure installation, offer advanced safety protection for children - and greater peace of mind for parents.
Smart-tech harness chest clip with SensorSafe technology provides alerts when unsafe situations arise including if a child unbuckles themselves while the vehicle is in motion; if the back seat has become too warm or too cold, if a child has been seated for too long, and if the driver accidentally leaves the child behind after the vehicle has been switched off. These alerts are provided through an installed vehicle receiver and a user-friendly smartphone SensorSafe App.
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 up to 4x for quick, simple and secure installation. Smart-tech harness chest clip with SensorSafe technology alerts parents if their child becomes unbuckled, the car temp gets too warm or unsafe conditions arise. 12-position recline adjustment even while seat is in use. Linear Side-impact Protection absorbs up to 25% more impact in a collision. 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 seat. 12-position, height-adjustable headrest with no-rethread harness. Dual-level indicators help ensure the proper car seat angle. Steel reinforced frame provides strength and durability. Harness pads and 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. *when compared to the same car seat without L.S.P. extended. SensorSafe is compatible with most vehicles 2008 or newer with an OBD II port. For some electric vehicles, contact Cybex as an additional adapter may be needed. Measurements: Forward-facing (Fully upright) 25.5" H x 20" W x 25.3" D Weight: 30.4 lbs. Use from birth up to 65 lbs. or 49 inches, following the directions in your user manual. 2-year limited manufacturer's warranty.
Car Seats and Travel Systems are FINAL SALE, no refund or exchange on this item.
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<div class="bvseo-question-answer" data-questionid="7583803">
<h2 class="bvseo-question">
Can i fit this car seat on my cybex s gazelle stroller or is this just for car only?&nbsp;
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<div class="bvseo-author">Asked by: Jasspreet</div>
<div class="bvseo-answer" data-answerid="7939290">
The Sirona S 360 is a convertible car seat which is much bigger and bulkier than an infant car seat. That being said, any CYBEX infant car seats are compatible with the Gazelle, and any other CYBEX stroller.
<div class="bvseo-author">Answered by: CYBEX Customer Care</div>
<div class="bvseo-pubdate">Date published: 2025-05-08</div>
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<div class="bvseo-question-answer" data-questionid="5643274">
<h2 class="bvseo-question">
Quelle est la profondeur de ce si&egrave;ge en position face vers l'arri&egrave;re? J'aimerais savoir s'il peut entrer dans une voiture compacte
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<div class="bvseo-author">Asked by: Mhasna16</div>
<div class="bvseo-answer" data-answerid="6183177">
The Sirona S in the most reclined position; rear facing is 30&quot; Le Sirona S dans la position la plus inclin&eacute;e ; face arri&egrave;re est de 30&quot;
<div class="bvseo-author">Answered by: CYBEX Customer Care</div>
<div class="bvseo-pubdate">Date published: 2023-05-18</div>
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<div class="bvseo-question-answer" data-questionid="5555845">
<h2 class="bvseo-question">
Any owns Honda Civic? How does it fit?&nbsp;
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<div class="bvseo-author">Asked by: Atifa</div>
<div class="bvseo-answer" data-answerid="6098867">
Because of the thousands of vehicle seats, belting types and safety seat combinations possible, there is no listing available to match a car seat with the type of vehicle in which it will best fit, however the dimensions of the seat which is: 24&quot;H x 19&quot;W x 30&quot;D.
<div class="bvseo-author">Answered by: CYBEX Customer Care</div>
<div class="bvseo-pubdate">Date published: 2024-03-28</div>
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<div class="bvseo-question-answer" data-questionid="5503650">
<h2 class="bvseo-question">
What is the difference between the regular black seat and this exclusive premium black? Is the material better?
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<div class="bvseo-author">Asked by: BabyBlueEyed</div>
<div class="bvseo-answer" data-answerid="6050767">
The material is the same, the only difference is the color.
<div class="bvseo-author">Answered by: CYBEX Customer Care</div>
<div class="bvseo-pubdate">Date published: 2021-11-22</div>
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<div class="bvseo-question-answer" data-questionid="5495092">
<h2 class="bvseo-question">
Can this car seat fit 3 across ?
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<div class="bvseo-author">Asked by: customer1234</div>
<div class="bvseo-answer" data-answerid="6041043">
Because of the thousands of vehicle seats, belting types and safety seat combinations possible, there is no listing available to match a car seat with the type of vehicle in which it will best fit, however the dimensions of the seat which is: 24&quot;H x 19&quot;W x 30&quot;D.
<div class="bvseo-author">Answered by: CYBEX Customer Care</div>
<div class="bvseo-pubdate">Date published: 2021-11-16</div>
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<div class="bvseo-question-answer" data-questionid="5486656">
<h2 class="bvseo-question">
Which stroller is compatible with this car seat?
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<div class="bvseo-author">Asked by: pjani</div>
<div class="bvseo-answer" data-answerid="6033526">
The Sirona S is not designed to attach to any strollers and is designed to stay installed in the vehicle.
<div class="bvseo-author">Answered by: CYBEX Customer Care</div>
<div class="bvseo-pubdate">Date published: 2021-11-19</div>
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<div class="bvseo-question-answer" data-questionid="5954579">
<h2 class="bvseo-question">
What are the minimum and maximum weight limits? Does this come with tethers for rear and forward facing?
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<div class="bvseo-author">Asked by: MamaBear13</div>
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<div class="bvseo-question-answer" data-questionid="6104056">
<h2 class="bvseo-question">
how can you install it in the car that has no latch(isofix)? can it be installed with seatbelt, or can we purchase additional base?
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<div class="bvseo-question-detail">
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<div class="bvseo-author">Asked by: yj b</div>
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Cybex Sirona S 360 convertible car seat with Sensor Safe Premium Black
SKN:270431
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