The CYBEX Sirona S Convertible car seat features a 360° rotatable seat with load leg stability, linear side impact protection and SensorSafe technology.

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.

SensorSafe™

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
Use from birth up to 65 lbs. or 49 inches,

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Cybex Sirona S 360 Convertible Car Seat