CybexEternis S SensorSafe Convertible Car Seat


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color: Lavastone Black



What weabout it
All-in-one functionality and advanced safety technology provide protection and peace of mind.


With three modes—rear-facing, forward-facing and booster—the new CYBEX Eternis S with SensorSafe Convertible Car Seat is designed for use from birth up to 120 lbs. The Eternis S with SensorSafe integrates important safety technology into the chest clip of the car seat to alert when unsafe situations arise. The alerts are provided through a vehicle receiver and the caregiver’s smartphone via a user-friendly app. The CYBEX app also provides guidance on installation, how-to videos, FAQs and more.


  • Forward-facing (fully upright): 25.5” x 20” x 25.3”
  • Weight: 26 lbs
  • Use from birth up to 120 lbs or 57”
  • Rear-facing from 4 lbs to 50 lbs; forward-facing from 22 lbs to 65 lbs; belt-positioning booster from 40 lbs to 120 lbs
  • Removable newborn inlay provides additional support for very small babies (4 lbs to 11 lbs)
  • 5-point safety harness with SensorSafe technology integrated in the chest clip (not used in belt-positioning booster mode)
  • Adjustable Linear Side-impact Protection (L.S.P. System) absorbs up to 25% more impact forces in the event of a near side impact collision*
  • Patented 3-position reclining headrest helps prevent the child’s head from falling forward while asleep, keeping the head and neck in a safe position and ensuring a comfortable sleeping position
  • In-seat recline provides correct ergonomic positioning and extra legroom, allowing your child to safely ride rear-facing longer
  • 12-position, height-adjustable headrest with an integrated no-rethread harness for protection that grows with your child
  • 6-position one-hand adjustable recline for the best fit to your car
  • Magnetic buckle holders for easy entry and exit from the seat
  • Removable cup holder can be positioned on either side and is dishwasher safe for easy clean up
  • Cozy harness pads and 2-position padded buckle for comfort
  • Steel reinforced frame provides strength and durability
  • Energy absorbing shell and base help reduce the forces felt by the child in a collision
  • Dual belt adjusters to ensure a tight fit
  • Dual-level indicators to help ensure the proper angle
  • Innovative one-pull LATCH removal system
  • LATCH Connection storage provided under the seat when not in use
  • Ergonomic design in CYBEX’s iconic Gold Design language
  • Designed and engineered in Germany

*when compared to the same car seat without L.S.P. extended

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