SKU: 34614403300
cybex car seat eternis

cybex car seat eternis CYBEX Eternis S SensorSafe All-in-One Convertible Car Seat

Sale price$19.42 Regular price$21.58
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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21

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Description

cybex car seat eternis CYBEX Eternis S SensorSafe All-in-One Convertible Car SeatThe CYBEX Eternis S with SensorSafe is the only car seat your child will need from their first ride home through every carpool adventure. With its three adaptable modesrear facing, forward facing, and boosterthe Eternis S is designed to protect children from birth up to 120 lbs. Built with CYBEXs signature safety features and thoughtful design, it ensures unparalleled comfort and security for your little one at every stage. From its advanced Linear

The CYBEX Eternis S with SensorSafe is the only car seat your child will need from their first ride home through every carpool adventure. With its three adaptable modes—rear-facing, forward-facing, and booster—the Eternis S is designed to protect children from birth up to 120 lbs. Built with CYBEX’s signature safety features and thoughtful design, it ensures unparalleled comfort and security for your little one at every stage. From its advanced Linear Side-impact Protection (L.S.P.) to the intuitive SensorSafe™ technology that monitors your child’s well-being, this car seat provides peace of mind wherever the road takes you.

What Is SensorSafe? Keeping Your Child’s Safety Front and Center

Equipped with SensorSafe™ technology, the CYBEX Eternis S delivers real-time safety alerts directly to your phone via the SensorSafe app. This innovative chest clip tracks critical safety indicators, such as unbuckling, temperature, and even periods of inactivity, helping you ensure your child’s safety without taking your eyes off the road.

Cybex Eternis S SensorSafe All-In-One Convertible Car Seat Features

3-in-1 Versatility: Switch between rear-facing (4-50 lbs.), forward-facing (22-65 lbs.), and booster (40-120 lbs.) modes to accommodate your child’s growth.
SensorSafe Technology: Safety alerts for peace of mind, including temperature and child unbuckling notifications.
Linear Side-Impact Protection (L.S.P.): Absorbs up to 25% more impact forces in a near side-impact crash.
12-Position Height-Adjustable Headrest: Grows with your child, making adjustments easy with no need to rethread the harness.
Internationally Patented 3-Position Reclining Headrest: Keeps your child’s head in a safe, comfortable position, reducing the risk of forward head slump.
In-Seat Recline and 6-Position Seat Recline: Designed for ergonomic support and extra legroom in the rear-facing position.
Magnetic Buckle Holders: Allows for easy seat entry and exit without searching for the buckle.

Cybex Eternis S SensorSafe All-in-One Convertible Car Seat Weight and Height Limits: How Long Can You Use Cybex Eternis?

Designed to grow with your child, the Eternis S supports rear-facing up to 50 lbs. or until your child reaches 48 inches, forward-facing up to 65 lbs., and then transitions to a high-back booster for children up to 120 lbs. This extended lifespan means your child can enjoy the safety and comfort of the Eternis S for up to 10 years.

Is CYBEX Eternis FAA Approved?

Yes, the CYBEX Eternis S is FAA-approved for air travel, ensuring your child’s safety in-flight. The FAA recommends securing children in an approved child restraint during flights for additional safety during unexpected turbulence. As always, please confirm with your airline before departure and refer to the car seat’s manual for aircraft installation instructions.

Cybex Eternis S SensorSafe All-In-One Convertible Car Seat Manual and Instructions for Installation

Installing the Eternis S is straightforward with CYBEX’s clear, detailed instructions, and it offers LATCH compatibility for secure installation. For a perfect fit and peace of mind, refer to the user manual for guidance on latch, tether, harness, and recline limitations for each mode.

Cybex Eternis S SensorSafe All-in-One Convertible Car Seat Reviews: Why Parents Love It

The CYBEX Eternis S with SensorSafe has received high praise from parents and caregivers who appreciate its seamless blend of safety, comfort, and durability. Many users highlight the SensorSafe technology, noting that it provides an added layer of security, especially for longer drives or busy days. Parents also love the versatile design, allowing them to use one seat for all stages of their child’s growth—from birth up to 10 years. The seat’s sturdy steel-reinforced frame and the unique L.S.P. system are often mentioned in reviews as standout safety features that make parents feel confident in their choice.

Another common highlight is the ease of use. Parents appreciate the adjustable headrest, easy recline options, and magnetic buckle holders, which simplify getting children in and out. Overall, the Eternis S offers long-term value and trusted safety, making it an exceptional investment in your child’s travel safety.

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Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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SKU: 34614403300

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4.5 ★★★★★
Based on 21 reviews
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Product Reviews
J
JY
Dallas, US
★★★★★ 4
Mostly reliable to use
Style: MagSafe Car Phone Holder
It's nice to use in my car to separate out different needs like looking up a specific route while moving and the navigation is going somewhere. The magnet is pretty strong and haven't had any issues with that. However, if you dont put it in the corner of the screen to secure it at a right angle, the flat way to secure it in the middle of the top edge is not reliable at all. The weight of the phone and the angle of the mount makes it really easy to fall off the screen no matter how tight you secure it down. Fell at least a handful of times. Just put it at the corners and you'll be just fine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 29, 2025
A
A. Maker
Phoenix, US
★★★★★ 2
Does not fit the Cybertruck. Will slip off due to angled backplate.
Style: MagSafe Car Phone Holder, Style: MagSafe Car Phone Holder
It does not fit the Cybertruck well. Due to the angled monitor back, it will slide off. Check the video of what I mean. It is not flat like the Model 3 or Ys. The mount should work fine on the Model 3 and Model Y and Newer Model S and X, but not on the Cybertruck and older vertical screen Model S and X. The Magsafe that I received must of been broken. It completely fell apart. Everytime I put on phone on it, the Magsafe will completely come off stuck to my phone.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 30, 2025
J
JR@CA
Chelsea, US
★★★★★ 3
Looks good, installs easily but the arm jitters on the road
Style: MagSafe Car Phone Holder, Style: MagSafe Car Phone Holder
Super easy and intuitive to install on my Tesla model 3. Once installed, I think it will probably hold position indefinitely. You can install it so that it is in a very convenient position. my right hand index finger was able to touch the screen of my phone while maintaining contact with the handle, so that should give you an idea. The reason I took 2 stars off is the way the goose neck jitters when driving. I think perhaps it is too thin. I drove on normal paved road, and the shakes were noticeable. It didn’t fall off at any point, but it made me nervous that it might. The magnet didn’t feel that strong either. A lot of people own phones larger and heavier than mine (iPhone 12 mini), so I’m reluctant to recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 26, 2025
A
Amazon Customer
Waukegan, US
★★★★★ 5
Well designed, secure hold
Style: MagSafe Car Phone Holder, Style: MagSafe Car Phone Holder
This Tesla screen phone mount feels well designed and has a strong MagSafe magnet to hold your phone. It is meant for the newer generation of Teslas with the screen that sits out from the instrument panel. It’s sits on the corner and has padding to keep it from scratching the screen. The size of the grippers keeps them right at the edge of the bevel so it doesn’t block any portion of the screen. They are easily tightened with a rotating dial that doesn’t slip. The MagSafe magnet can be positioned in a variety of positions. The kit comes with an adhesive metal ring in case your phone or case isn’t MagSafe compatible. Unfortunately, it didn’t come with any instructions, but it was easy enough to figure out.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 23, 2025
W
Wonderful Reviews
Birmingham, US
★★★★★ 4
Mount your MagSafe compatible phone to the Tesla monitor
Style: MagSafe Car Phone Holder
The Tesla MagSafe monitor mount fits the screen of a Model 3 perfectly. It has a strong magnet and when you attach it to the monitor and tighten the wheels this mount stays put. I can now have my phone docked next to the monitor in front of the steering wheel, which really helps me unlock the phone when I need to access things like my phone's calendar or emails. I can also use the phone as a music switching interface when it's connected to the car via bluetooth. The design of the mount is very simple, it has two cushioned clamps, I never felt like I was compressing the clamps too hard that it'll crack the screen but I just adjusted it enough so it won't fall down with the weight of the phone on the mount. The magnet of the mount is very strong and as long as your phone supports MagSafe docking it will not have a risk of falling when you drive even over bumps. The arm of the mount is adjustable so you can place it at the appropriate angle that you like.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 29, 2025

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