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The CYBEX Sirona S convertible car seat brings parents some peace of mind. Not only does it have an ultra-convenient 360-degree rotatable seat, but it's the first of its kind to also offer load leg stability, linear side-impact protection and Sensor Safe technology. The innovative height-adjustable load leg element is integrated into the base of the seat and extends down to the vehicle floor, which can significantly reduce crash forces. The Bluetooth-enabled chest clip 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—along with the EasyLock bar for quick and simple installation—offer a safe and secure ride for your little one.

Check out our Types of Car Seats Guide to learn more.


CYBEX Manhattan Grey Sirona S Baby Car Seat with SensorSafe25.5height19width24.5depthMeasurements are in inches.
  • Suitable for newborn to approximately 4 years (4–65 lbs. and up to 49")
  • Rear-facing and forward-facing modes; child can stay rear-facing up to 50 lbs.
  • Plastic and steel frame
  • Fabric cover and foam padding
  • Innovative one-hand, 360-degree rotatable seat
  • Includes removable infant insert
  • EasyLock bar and one-time vehicle belt installation transitions from rear-facing to forward-facing mode without having to re-install
  • SensorSafe technology
  • 12-position recline
  • 12-position adjustable headrest
  • Harness adjusts with the headrest for a proper fit as your child grows
  • 3-position padded buckle allows for a secure, comfy fit
  • Magnetic buckle holders keep harness out of the way for easy loading and unloading
  • Linear side-impact protection
  • Anti-rebound design
  • Dual-level indicators signal proper car seat angle from either side of the seat
  • Dishwasher-safe cup holder can be positioned on either side of the seat
  • Seat pad: machine wash cold, delicate cycle; air dry flat
  • Imported

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