The new 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 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. The Eternis S with SensorSafe alerts when the driver accidentally leaves the child behind secured in the car seat, a child unbuckles their chest clip while the vehicle is in motion, the back seat has become too warm or too cold and when a child has been seated for too long —all through a user-friendly app, that also provides guidance on installation, how-to videos, FAQ’s and more. Additionally, the Eternis S with SensorSafe offers an adjustable Linear Side-impact Protection (L.S.P. System), which absorbs up to 25% more impact forces in the event of a near side impact collision* and a patented 3-position reclining headrest, which helps prevent the child's head from falling forward while asleep, guiding the head and neck into a safe position. These features, combined with a steel reinforced frame for strength and durability provide advanced child safety protection and peace of mind.
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.
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* (*when compared to the same car seat without L.S.P. extended)
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 ensures 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 newborn inlay provides additional support for very small babies (4 lbs. to 11 lbs.)
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
How SensorSafe Works:
Originally developed to help prevent the rising number of infant hot car deaths, SensorSafe will chime through the installed vehicle receiver to alert when a child is still secured in the back seat after the car has been switched off. This reminds the caregiver to act quickly, but if the child is still secured after several minutes an alert will be sent to the caregiver’s cellphone through the downloaded app. If the situation is still not remedied, the designated emergency contact will receive an alert with the GPS coordinates of the vehicle’s last known position. This state-of-the-art safety technology is designed so there is no need to reinstall each time you drive. For ease, just keep the receiver plugged into your car’s OBD port to drive with that extra peace of mind.
Chimes through the installed vehicle receiver if child is still secured in the seat when the car is switched off
Alerts through the caregiver’s cell phone if the child is left behind in the vehicle secured in the car seat and then alerts the designated emergency contact if the situation is still not remedied
Emergency contact receives GPS coordinates of the vehicle’s last known position
Alerts through the vehicle receiver and caregiver’s smart phone when the child has unbuckled their chest clip while the vehicle is in motion
Monitors the back seat temperature to alert through the vehicle receiver and the caregiver’s smart phone when the back seat appears to be too hot or too cold for the child’s comfort
Provides warnings to the caregiver when the child may have been seated for too long and needs a break
Receiver plugs directly into your car’s OBD port and syncs with the caregiver’s cell phone
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
App can monitor up to 16 chest clips on a single platform
App download available for Android and IOS
Measurements: Forward-facing (Fully upright) H 25.5” x W 20” x D 25.3”
Weight: 26 lbs.
Use from Birth up to 120 lbs. or 57 inches, following the directions in your user manual
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.