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Cybex Sirona S SensorSafe 360° Rotating Convertible Car Seat Review

Snuggle Bugz | | Comments 0

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The ultra-safe and reliable car seat you have been searching for is here!

Sirona S SensorSafe 360° Rotating Convertible Seat by Cybex has a steel reinforced frame, safety features GALORE, and can fit children from infancy all the way up to 65 lbs.

But that's just the beginning of what this seat can do. It's not often we throw around the word "cool" when talking about convertible car seats, but in this case, we will make an exception.

Let’s get started!


  • Car Seat Weight: 30.4 lbs 
  • Dimensions: 21.2” H x 33.6” L x 20.1” W 
  • Weight Limitations: Suitable from 4–65 lbs or 49 inches 
  • Rear-facing: Suitable from 4 lbs. to 50 lbs 
  • Forward-facing: Suitable from 22 lbs. to 65 lbs 

Safety protocols recommend keeping children rear-facing for as long as possible as they are less likely to sustain injuries should a collision occur. On that note, it’s a real benefit that babies in the Sirona S car seat can be rear-facing all the way up to 50 lbs.

Another safety feature this car seat touts is a load leg, which secures the seat in its upright position and reduces crash forces should you ever get into an accident. The load leg can be extended to accommodate higher seats in SUVs and trucks. When not in use, it can be safely tucked away, out of sight.

The car seat also has an anti-rebound bar to reduce movement and an EasyLock™ Bar for quick, simple and secure installation.

Additionally, the patented, linear side impact pop-outs can be deployed on the side of the seat closest to the door to help lower impact in an accident.

The safety features are endless!



Okay, so far you may be thinking, "a lot of car seats have these features." Well, buckle up, you're about to hear the coolest thing to hit car seats since no-rethread harnesses...okay, actually WAY cooler than that.

Drumroll, please!

The Sirona S features an innovative 360° rotatable seat!! Amazing, right!

Not only does the rotation allow you to switch the seat from rear-facing to front-facing at record-breaking speed, but you can even turn the seat to face the car door to get your baby in and out easily — no more bumped heads.

Once you’re done, simply rotate the seat back into position — an indicator lets you know when it is properly locked into place.

Because of this nifty rotating feature, the Sirona S is the only convertible car seat in North America with a one-time vehicle belt installation for both rear-facing and forward-facing modes.


If that weren't enough, this car seat also boasts SensorSafe technology.

SensorSafe transmits a signal from a sensor clip on the car seat’s harness to the SensorSafe app, which you download on your phone/smart device. This innovative technology can alert you to several potentially dangerous situations.

We are all too familiar with stories of family members unknowingly leaving children in cars and the dangers that can ensue. Well, SensorSafe technology can help prevent this from happening. If you break the Bluetooth connection (you are too far away from the car) and the car seat is still buckled, you will be sent an alert informing you have left your child unattended in the car. If you do not respond to the alert, it can then send alerts to other family members that are signed up for the app.

In addition, SensorSafe will also inform you if:

  • Your child unbuckles their harness 
  • Your child is exposed to a dangerous temperature
  • Your child is stationary for too long (it is recommended children only stay in their car for a maximum of 2 hours before they need a break) 
For more information about SensorSafe Technology, click HERE.


In addition to next-generation safety and the cool factor, the Sirona S SensorSafe Convertible Seat boasts useful features that will make daily life better for both babies and parents.

  • Zero Re-thread Harness:
    Allow you to adjust the straps easily as your child grows.
  • Removable Newborn Insert:
    This insert ensures even the smallest babies are safe and secure.
  • Magnetic Buckle Holders:
    This makes getting your baby in and out of the car a whole lot faster.
  • 12 Different Recline Positions (that can be used even while the seat is being used): Offering a dozen different reclining positions, you can find the perfect one for your baby to snooze on the go.
  • A Height Adjustable Headrest:
    As much as you may wish your baby to stay little forever, they are going to grow...and fast. Thankfully the headrest of this seat can adjust to 12 different positions to accommodate their growing body. 
  • Moveable Cup Holder:
    This cup holder will make sure your little one can stow their bottle within arm’s reach, plus it can be connected to either side of the car seat.
  • Innovative One-Pull LATCH Removal System:
    For easy transitions.
    Of note: when not in use, you can store the LATCH connection inside the base.


Boasting many potentially life-saving features, the Sirona S Sensorsafe Seat delivers next-level safety without losing sight of comfort and style. The Sirona S comes in 4 sleek colours to complement any car’s interior and its versatility will ensure your child is comfortable as they grow.

Cybex has gone above and beyond to include elements that enhance user experience and make things easier for parents, such as the one-time installation, impressive 360-degree rotation, and magnetic buckle holders.

Overall, this convertible car seat is a no-brainer for any parent looking for an intuitive and easy-to-use option that will have them covered from infancy through toddlerhood. Not only will this car seat give you a lot of mileage and provide you with extra peace of mind, but it's also bound to turn a few heads (and babies).