Cybex Eternis S All-In-One Convertible Car Seat

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Cybex Eternis S All-In-One Convertible Car Seat

Protection that Grows
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.

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.

The sensorsafe Safety Technology

Peace of Mind For You, Better Safety For Your Child.
Once attached to the harness system of the child car seat, the SensorSafe 4-in-1 Safety Kit can be connected to your smartphone and will alert you to critical situations such as: if your child is left unattended in the car, if temperatures in the car get too hot or cold, if the child unbuckles the clip or if they’ve been seated for too long.

Eternis S - Functions

Protection that Grows
The Eternis S All-In-One convertible car seat offers three stages in one-easy to use car seat, suitable from 4 lbs. up to 120 lbs., or 57 inches tall. First used as a rear-facing infant seat up to 50 lbs., then as a forward-facing convertible seat and lastly as a belt-positioning high-back booster seat. With seamless transitions between modes, the Eternis S offers versatile protection that lasts all the way through your child’s first 10 years of age.

SensorSafe Technology
With SensorSafe, you'll gain instant insight into your child's well-being—even when your eyes are on the road. Built into the chest clip of CYBEX car seats, the SensorSafe clip connects to a vehicle receiver which sends alerts about your child's safety, right to the mobile app on your phone. It's the kind of unparalleled safety technology you've come to expect from CYBEX.

Linear Side-impact Protection (L.S.P.)
Linear Side Impact Protection is a feature of CYBEX car seats that absorbs impact forces of certain side impact crashes and directs these forces into the energy absorbing shell of the car seat and away from the child’s sensitive neck area. By extending the L.S.P. system on the side of your car seat facing the door, this feature takes the initial brunt of the force and helps keep your child safer in the event of a near side impact.

Car seats with L.S.P. extended see a reduction in near side impact forces on the baby by up to 25 % when compared to the same car seat without L.S.P. extended.

Patented 3-Position Reclining Headrest
The CYBEX patented reclining headrest helps protect the child’s neck and head in the case of a side-impact. This revolutionary technology safely shifts the balance point of the child's head slightly back and prevents it from falling forward when the child is asleep. Furthermore, our patented 3-position headrest offers a more comfortable sleeping position.

In-Seat Recline
In-seat recline provides correct ergonomic positioning and extra legroom, allowing your child to ride rear-facing longer - up to 50 lbs.

12-Position Height-adjustable Headrest
With the 12-position height-adjustable headrest with integrated harness guide, the length of the harness changes automatically when the headrest is adjusted. This eliminates the need for the difficult re-threading of the harness and makes it almost impossible to misuse.

6-Position Recline
6-position one-hand adjustable recline for the best fit to your car

Magnetic Buckle Holders
Magnetic buckle holders for easy entry and exit from the seat


Weight:From 4 lbs. up to 120 lbs.
Age:From newborn up to 10 years
Length:32 in
Width:22 - 25 in
Height:19 in
Weight:26 lbs

What is included

Eternis S Toddler Car Seat
Newborn Inlay
User Guide

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