Cybex Eternis S with SensorSafe (Lavastone Black)-Gear-Cybex-026339
Cybex Eternis S with SensorSafe (Lavastone Black)-Gear-Cybex-026339
Cybex Eternis S with SensorSafe (Lavastone Black)-Gear-Cybex-026339
Cybex Eternis S with SensorSafe (Lavastone Black)-Gear-Cybex-026339
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  • SKU: 026339 LB
  • Availability:Out of stock

Cybex Eternis S with SensorSafe (Lavastone Black)


    The Cybex Eternis S with SensorSafe is the only seat your child will need from birth and beyond! With three modes -- rear-facing, forward-facing and booster, this All-In-One Car Seat is designed for use from 4 lbs (1.8 kg) up to 120 lbs (54.4 kg). This car seat integrates important safety technology into the chest clip of harness to alert when unsafe situations arise. The alerts are provided through a vehicle receiver and the caregiver’s smartphone to ensure safety for children in a range of situations.


    All-In-One Car Seat
    With 3 modes - rear-facing, forward-facing, and belt positioning booster, this car seat does it all!
    SensorSafe Chest Clip
    Provides alerts when a child unbuckles their chest clip while the vehicle is moving and more!

    Linear Side-Impact Protection
    Absorbs up to 25% more impact forces in a the event of a side collision.
    Steel Reinforced Frame
    Provides additional strength and durability. 
    Energy Absorbing Shell & Base
    Helps to reduce the forces felt by your child in a collision.
    3-Position Reclining Headrest
    Keeps the head and neck in a safe position even while your child is sleeping. May also help prevent the child's head from falling forward while asleep.
    In-Seat Recline
    Provides correct ergonomic positioning and extra legroom, allowing your child to ride rear-facing longer. 
    12-Position Height Adjust
    Easily adjusts the harness and head support height with the press of a button. This keeps your baby at proper harness height, without the fuss of re-threading any straps.  
    6-Position Recline
    One-hand adjustable recline for the best fit to your car. 
    Dual-Level Indicators
    Help to ensure the car seat is at the proper angle for installation. 
    Innovative One-Pull LATCH Removal System
    No more fighting to remove the LATCH installation! Just pull the red looped straps and the LATCH unhooks with ease.
    Anti-Rebound Bar
    Provides additional protection in the event of a crash by reducing the rear-facing  car seat rebound movement.
    Magnetic Buckle Holders
    Keep the harness out of the way for easy entry and exit from the seat.
    Removable Newborn Included 
    Provides support for newborn baby from 5 lbs to 11 lbs (2.3 kg to 5 kg).
    Cup Holder Included
    Included dishwasher-safe cup holder can be positioned on either side of the car seat and can easily be removed for cleaning. 
    German Design
    The Cybex Eternis S is designed and engineered in Germany, manufactured in China at the Good Baby factory. 

    Certified for Aircraft Travel


    This is a final sale item. This item is not eligible for returns or exchanges.

    Originally developed to help prevent the rising number of infant hot car deaths, SensorSafe will alert you if your child is left behind in the vehicle. It will also notify you if your child unbuckles their chest clip while you're driving, if the vehicle is getting too hot or too cold for your little one, or if your child has been seated too long and may need a break. 


    • Chimes through the installed vehicle receiver if your child is still secured in the seat when the car is switched off
    • Alerts through your smartphone if the child is left behind in the vehicle secured in the car seat and then alerts your designated emergency contact if the situation is still not remedied
    • Alerts your designated emergency contact, and sends them the GPS coordinates of your vehicle’s last known position
    • Chimes through the installed vehicle receiver and alerts through your smartphone when your child has unbuckled their chest clip while the vehicle is in motion
    • Monitors the temperature of your vehicle back seat 
    • Chimes through the installed vehicle receiver and alerts through your smartphone when the back seat appears to be too hot or too cold for your child’s comfort 
    • Chimes through the installed vehicle receiver and alerts through your smartphone to remind you when your child may have been seated for too long and needs a break
      • Receiver plugs directly into your car’s OBD port and syncs with your smartphone
      • Only one install needed if receiver is kept plugged into vehicle’s OBD port 
      • Helps ensure proper use by providing guidance on installation, how-to videos, FAQ’s, direct link to customer service and more through the SensorSafe app
      • SensorSafe App can monitor up to 16 chest clips on a single platform
      • SensorSafe App download available for Android and IOS


      • Child Weight (lbs)
        • Rear Facing: 4 - 50 (1.8 - 22.7 kg)
        • Forward Facing: 22 - 65 (10 - 29.5 kg)
        • Booster Mode: 40 - 120 (18 - 54.4 kg)
      • Child Standing Height (in)
        • Rear Facing: 17 - 48
        • Forward Facing: 28 - 49
        • Booster Mode: 44 - 57
      • Product Weight (lbs): 27 (12.5 kg)
      • Product Dimensions (in): 25.5 H x 20 W x 25.3 D (64.8 H x 50.8 W x 64.3 H cm)


        • Free shipping on orders with a minimum pre-tax total of $59

        • All in-stock items are shipped within 2-3 business days

        • Next-day and Express delivery options also available

        • See the delivery FAQs for details on shipping methods, costs and delivery times


        • Any and all shipping fees incurred in returning are done at the customer's expense

        • See conditions and procedure in our return FAQs

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