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 1.8 kg up to 54.4 kg (4 lbs. up to 120 lbs.). 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.

  • Three modes: Rear-facing from 1.8 kg to 22.7 kg (4 lbs. to 50 lbs.), Forward-facing from 10 kg to 29.5 kg (22 lbs. to 65 lbs.), Belt-positioning Booster from 18 kg to 54.4 kg (40 lbs. to 120 lbs.)
  • Smart-tech harness chest clip with SensorSafe provides alerts when unsafe situations arise in the back seat (not used in Belt-positioning Booster mode)
  • Linear Side-impact Protection absorbs up to 25% more impact forces in a collision*
  • 3-position reclining headrest helps prevent the child's head from falling forward while asleep, keeping the head and neck in a safe position
  • In-seat recline provides correct ergonomic positioning and extra legroom, allowing your child to ride rear-facing longer


  • Expanded assortment available online. This product is not available in our stores & may experience longer ship time. Please allow 10 to 14 days for this product to arrive.



    Car Seats and Travel Systems are FINAL SALE, no refund or exchange on this item.

    Additional Information

    • SKN: 59770
    • ID: C4566A55
    • UPC: 4058511379241
    • MFR Number: 8002925
    • Ship to Quebec: Yes
    • Language: Bilingual

    Assembly

    • Assembly Required: No
    • Item Height: 25.60 inches
    • Item Length: 25.25 inches
    • Item Weight: 26.00 lbs
    • Item Width: 19.75 inches

    <!--begin-bvseo-reviews--> <!--begin-reviews--> <div id="bvseo-reviewsSection"> <div class="bvseo-review" itemprop="review" itemscope itemtype="https://schema.org/Review" data-reviewid="1129315424"> <span itemprop="reviewRating" itemscope itemtype="https://schema.org/Rating"> Rated <span itemprop="ratingValue">5</span> out of <span itemprop="bestRating">5</span> </span> by <span itemprop="author" itemtype="https://schema.org/Person" itemscope><span itemprop="name">fmarie909</span></span> from <span itemprop="name">Wonderful Car Seat</span> <span itemprop="description">[This review was collected as part of a promotion.] Absolutely love this car seat!! When I first received it I had a hard time locating the anchors for foreword facing, but was able to find them with the help of the manual. I love how the head part can recline for when my son falls asleep his head isn&rsquo;t falling foreword! The advance technology is amazing your able to download an app and it tells you when the chest clip is connected and the temperature in your car. The only down fall to this car seat is the light colored fabric, I wish it was a bit darker.</span> <div class="bvseo-pubdate">Date published: 2019-01-17</div> <meta itemprop="datePublished" content="2019-01-17" /> </div> <div class="bvseo-review" itemprop="review" itemscope itemtype="https://schema.org/Review" data-reviewid="1129315421"> <span itemprop="reviewRating" itemscope itemtype="https://schema.org/Rating"> Rated <span itemprop="ratingValue">5</span> out of <span itemprop="bestRating">5</span> </span> by <span itemprop="author" itemtype="https://schema.org/Person" itemscope><span itemprop="name">erin22</span></span> from <span itemprop="name">Happy baby, happy parents!</span> <span itemprop="description">[This review was collected as part of a promotion.] We were super excited to receive the new Cybex Eternis S for our 17 month old (and 5 year old!). It is SUCH a versatile seat given the longevity it provides. I mean, the ability to rear face until our baby is 50 lbs?! That's amazing! The other feature we were thrilled with was the SensorSafe technology. It is SUPER easy to install in your vehicle and monitor with your smart device. Straight out of the box the Eternis S is a thing of beauty. We were highly impressed by the build construction and quality. The fabrics are incredibly soft and the color is very sleek. The seat is HEAVY but that is to be expected with the steel reinforced frame. I LOVE the removable cup holder and how easily it attaches to the seat. The three position movable recline on the headrest is a feature that I've never seen on a carseat before (and we have five kids...so a lot of carseats over the years!). It is super easy to adjust and such a cool added bonus. Another neat feature is the magnetic strap holders....so handy when you are getting your child in the seat and you don't want to be fumbling around with the straps. Adjusting the straps with the no re-thread harness was a total breeze. Everything is labeled very clearly to eliminate any confusion. The straps fit nicely across our daughter's legs, they do not dig in or seem uncomfortable at all. The L.S.P (Linear Side-Impact Protection) pops in and out with the click of a button, we love this added safety feature. A few (minor) things to note: when clipping and unclipping the chest clip it took a little more wiggling than I am used to, however my five year old was still able to get herself out of the seat when instructed to do so. The SensorSafe is in the chest clip so I imagine that is why it required a little more work. Installing in our 2016 Honda Odyssey was pretty straightforward, however, it did take a few tries to get the seat tight (with the LATCH system). The manual was easy to navigate with helpful instructions and I imagine it will get easier over time. Releasing the LATCH was super easy with the quick release pull tabs. Overall we are extremely pleased with this carseat. We rate it five stars based on the longevity, quality, and safety features. You will not be disappointed!</span> <div class="bvseo-pubdate">Date published: 2019-01-17</div> <meta itemprop="datePublished" content="2019-01-17" /> </div> <div class="bvseo-review" itemprop="review" itemscope itemtype="https://schema.org/Review" data-reviewid="1129315412"> <span itemprop="reviewRating" itemscope itemtype="https://schema.org/Rating"> Rated <span itemprop="ratingValue">5</span> out of <span itemprop="bestRating">5</span> </span> by <span itemprop="author" itemtype="https://schema.org/Person" itemscope><span itemprop="name">beachgrl8719</span></span> from <span itemprop="name">Great features!</span> <span itemprop="description">[This review was collected as part of a promotion.] My daughter has been using this car seat for a week now and I am extremely happy with the durability and features of this seat! The seat is heavy duty, sturdy and easy to install either forward or rear facing. The fabric is so soft and comfortable. The recline on the seat is amazing and I do not have to worry about my daughters head falling down when she sleeps. The seat is equipped with linear side impact protection and I feel my child is very safe if there were ever an accident. I absolutely love the scensor safe alert system that I can control using an app on my phone. This way I know if she has taken off her belt or if she has not and has been potentially left in the car. I will immediately be notified. This seat is top of the line and I would highly recommend it to all of my family and friends.</span> <div class="bvseo-pubdate">Date published: 2019-01-16</div> <meta itemprop="datePublished" content="2019-01-16" /> </div> <div class="bvseo-review" itemprop="review" itemscope itemtype="https://schema.org/Review" data-reviewid="1129315422"> <span itemprop="reviewRating" itemscope itemtype="https://schema.org/Rating"> Rated <span itemprop="ratingValue">5</span> out of <span itemprop="bestRating">5</span> </span> by <span itemprop="author" itemtype="https://schema.org/Person" itemscope><span itemprop="name">Starstruck0508</span></span> from <span itemprop="name">Amazing car seat!</span> <span itemprop="description">[This review was collected as part of a promotion.] I received the Eternis S with SensorSafe for free to review. I absolutely love this car seat and the features with it! I love how it alerts me when he&rsquo;s buckled or when we unbuckle him. It tells me if it&rsquo;s too cold or hot in the car. The only con, is sometimes it tells me he&rsquo;s still in the car when I already unbuckled him and he&rsquo;s safely with me. The alert to let you know the baby is in the car with you is pretty loud. And it goes off twice when you shut the car off.</span> <div class="bvseo-pubdate">Date published: 2019-01-13</div> <meta itemprop="datePublished" content="2019-01-13" /> </div> <div class="bvseo-review" itemprop="review" itemscope itemtype="https://schema.org/Review" data-reviewid="1129315434"> <span itemprop="reviewRating" itemscope itemtype="https://schema.org/Rating"> Rated <span itemprop="ratingValue">5</span> out of <span itemprop="bestRating">5</span> </span> by <span itemprop="author" itemtype="https://schema.org/Person" itemscope><span itemprop="name">Lizisaurusrex</span></span> from <span itemprop="name">Beautiful with awesome features!</span> <span itemprop="description">[This review was collected as part of a promotion.] Beautiful seat! Love the sensors and the hidden storage for latches. My daughter is comfortable in the seat and I can see this being the last seat I&rsquo;ll need!</span> <div class="bvseo-pubdate">Date published: 2019-01-11</div> <meta itemprop="datePublished" content="2019-01-11" /> </div> <div class="bvseo-review" itemprop="review" itemscope itemtype="https://schema.org/Review" data-reviewid="1129315406"> <span itemprop="reviewRating" itemscope itemtype="https://schema.org/Rating"> Rated <span itemprop="ratingValue">4</span> out of <span itemprop="bestRating">5</span> </span> by <span itemprop="author" itemtype="https://schema.org/Person" itemscope><span itemprop="name">Kidstuff15</span></span> from <span itemprop="name">Great car seat that may work well from birth!</span> <span itemprop="description">[This review was collected as part of a promotion.] I was a certified Child Passenger Safety technician several years ago (I have since let my certification lapse) and have installed many different car seats in many different types of vehicles. I have only tried the Eternis S in my vehicle (Toyota Prius V) for my baby (almost 11 months ~18 lbs. and 27&quot; tall). I installed the car seat in our car in the most upright position allowed for rear facing, using the leveling indicator ball, this is the only rear facing position that will allow an adult to ride in the front passenger seat (the car seat takes up this same amount of space all the way to the top harness position). She needs the Eternis headrest high enough that I was able to tilt it back a notch (only headrest positions 4 and higher allow you to tilt the headrest back) which was very nice, she fell asleep and her head did not slump at all. I installed the Sensorsafe app on my iPhone to try it out. It works well and the setup instructions within the app were easy to follow. I highly recommend the using the seat belt to install this car seat, it was much easier for me to get a tight install with the seat belt than with LATCH. I installed the car seat in my car with the seat belt both rear and forward facing. I was able to get a solid install by just feeding the seat belt through the generously sized belt paths (no scratched hands!), feeding the shoulder belt through the the lock off, and pulling the seat belt with just my hands. I did not have to put my weight in the car seat to get it tight. I installed the car seat in my car with LATCH both rear and forward facing. The LATCH strap is stored inside a compartment under the seat cover, it is a little bit of a pain to get it out, feed it through the belt path, and replace the seat cover. I really like the pull strap release on the LATCH buckle, it is easier than the push button style. I was able to get tight rear and forward facing installs, but I had to put one knee in the seat and pull the LATCH strap as hard as possible while rocking the seat side to side to get it tight. According to the user manual you must discontinue using LATCH rear facing when baby weighs 35 lbs. and forward facing at 40 lbs. With the infant insert installed, the shoulder straps are 6 &frac12;&quot; high in the lowest setting and the crotch strap in the inner position is 3&quot; from the seat back. With the infant insert removed, the shoulder straps are 17 &frac12;&quot; high in the highest setting and the crotch strap in the outer position is 5 &frac34;&quot; from the seat back. Pros: -Looks like it will work well for a small newborn (deep recline, head rest tilts back automatically in the smaller harness settings, smallest harness setting looks small enough) -Optional tilt back headrest for the higher harness settings -High rear facing capacity, 4-50 lbs. and 17&quot;-48&quot; -High forward facing harnessed capacity, 22-65 lbs. and 28&quot;-49&quot; -Booster mode, 40-120 lbs. and 44&quot;-57&quot; -The harness does not have to be removed for booster mode (less likely to lose the parts) -LATCH, including top tether, can be used to secure the car seat in the vehicle in booster mode -Seems well cushioned and comfortable for babies and toddlers -Large belt paths that don't scratch your hand when feeding the seatbelt through -10 year expiration date -Retractable L.S.P. only takes up extra width in your car when extended for use -LATCH strap pull release mechanism is easy to use -Clear, easy to follow user manual and stickers on the car seat Cons: -Very large seat - 19 &frac12;&quot; wide and takes up a lot of room rear facing front to back if reclined for a small baby, you would need a very large vehicle to be able to recline it deeply enough for a newborn -Difficult to get a tight LATCH installation -The seat bottom is very well padded except for the 3&quot; near the seat back which is about half as padded as the rest of of the seat bottom, it seems like this would be uncomfortable for a potty trained child -The chest clip is stiff to buckle and unbuckle, this may get better with use -The headrest is difficult to adjust into the lower harness positions (positions 1-2), I was afraid I was going to break it while pushing it down, this may get easier with use I recommend this car seat, I will still use an infant car seat, Cybex Aton Q, for my next newborn (due in June) because we will not be able to recline the Eternis S enough in our car, but I think this will be an excellent car seat once the baby has enough head control to sit in the most upright rear facing position through to the booster years. I received this car seat for free in exchange for my honest review.</span> <div class="bvseo-pubdate">Date published: 2019-01-10</div> <meta itemprop="datePublished" content="2019-01-10" /> </div> <div class="bvseo-review" itemprop="review" itemscope itemtype="https://schema.org/Review" data-reviewid="1129315428"> <span itemprop="reviewRating" itemscope itemtype="https://schema.org/Rating"> Rated <span itemprop="ratingValue">5</span> out of <span itemprop="bestRating">5</span> </span> by <span itemprop="author" itemtype="https://schema.org/Person" itemscope><span itemprop="name">Anibebe</span></span> from <span itemprop="name">Super easy to install!</span> <span itemprop="description">[This review was collected as part of a promotion.] This seat is for my 3.5 year old who is 40&rdquo; tall and weighs 42 lbs. She&rsquo;d grown out of her Evenflo Safemax car seat and so we were looking for a booster seat that would carry her all the way until she didn&rsquo;t need one anymore. It&rsquo;s incredibly comfy and very easy to install (we did the tether and the seatbelt through the back). All in all installation took 5 minutes which helps when you have two kids! The cup holder just slotted into place as well. I love Cybex products for their quality and ease of use and this seat is no exception. The sensor safe is a nice option too which allows us to understand when the kids need a break during a road trip. Very happy with this car seat indeed and i&rsquo;ll Be recommending it to all my friends!</span> <div class="bvseo-pubdate">Date published: 2019-01-08</div> <meta itemprop="datePublished" content="2019-01-08" /> </div> </div> <script type="text/javascript"> if (document.getElementById('bvseo-reviewsSection')) { document.getElementById('bvseo-reviewsSection').style.display = 'none'; } </script> <!--end-reviews--> <ul id="BVSEO_meta" style="display:none!important"> <li data-bvseo="bvDateModified">y_2025, m_8, d_1, h_5</li> <li data-bvseo="ps">bvseo_bulk, prod_bvrr, vn_bulk_3.0.42</li> <li data-bvseo="cp">cp_4, bvpage2n</li> <li data-bvseo="co">co_hasreviews, tv_12, tr_75</li> <li data-bvseo="cf">loc_en_CA, sid_C4566A55, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]</li> <li data-bvseo="diagnostics">clientName_toysrus-ca</li> </ul> <!--end-bvseo-reviews--> <ul id="BVSEOSDK_meta" style="display: none !important;"> <li data-bvseo="sdk">bvseo_sdk, dw_cartridge, 18.2.0, p_sdk_3.2.0</li> <li data-bvseo="sp_mt">CLOUD, getReviews, 5ms</li> <li data-bvseo="ct_st">reviews, product</li> </ul>
    Cybex Eternis S All in One Car Seat with SensorSafe, Pepper Black is rated 4.4 out of 5 by 87.
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    <!--begin-bvseo-questions--> <!--begin-questions--> <div id="bvseo-questionsSection"> <div class="bvseo-question-answer" data-questionid="4988503"> <h2 class="bvseo-question"> Can an infant use this?&amp;nbsp; </h2> <div class="bvseo-question-detail"> </div> <div class="bvseo-author">Asked by: Nunyeah</div> <div class="bvseo-answer" data-answerid="6994427"> 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. <div class="bvseo-author">Answered by: CYBEX Customer Care</div> <div class="bvseo-pubdate">Date published: 2023-10-27</div> </div> </div> <div class="bvseo-question-answer" data-questionid="4864453"> <h2 class="bvseo-question"> Does this chair swivel in place&amp;nbsp; </h2> <div class="bvseo-question-detail"> </div> <div class="bvseo-author">Asked by: HappyBee</div> <div class="bvseo-answer" data-answerid="6994280"> No this chair does not swivel. <div class="bvseo-author">Answered by: CYBEX Customer Care</div> <div class="bvseo-pubdate">Date published: 2023-10-27</div> </div> </div> <div class="bvseo-question-answer" data-questionid="5525853"> <h2 class="bvseo-question"> Would this be good for a smaller car? Rear facing? Thanks!&amp;nbsp; </h2> <div class="bvseo-question-detail"> </div> <div class="bvseo-author">Asked by: Emma29</div> <div class="bvseo-answer" data-answerid="6068406"> Because of the thousands of vehicle seats, belting types and safety seat combinations possible, there is no listing available to match a car seat with the type of vehicle in which it will best fit, however the dimensions of the seat is 19.75&amp;quot;W x 25.5&amp;quot;H x 25.25&amp;quot;D. <div class="bvseo-author">Answered by: CYBEX Customer Care</div> <div class="bvseo-pubdate">Date published: 2021-12-01</div> </div> </div> <div class="bvseo-question-answer" data-questionid="5513132"> <h2 class="bvseo-question"> Does this seat use the same base as the Aton 2 Infant bucket seat? </h2> <div class="bvseo-question-detail"> </div> <div class="bvseo-author">Asked by: Ldb123</div> <div class="bvseo-answer" data-answerid="6063157"> The Eternis S does not have a separate base like the infant seats have. <div class="bvseo-author">Answered by: CYBEX Customer Care</div> <div class="bvseo-pubdate">Date published: 2022-01-14</div> </div> </div> <div class="bvseo-question-answer" data-questionid="5352190"> <h2 class="bvseo-question"> When this product made? To know the expiration date ! Thank you&amp;nbsp; </h2> <div class="bvseo-question-detail"> </div> <div class="bvseo-author">Asked by: Emkk12</div> <div class="bvseo-answer" data-answerid="5912559"> The manufacturer date is found on the car seat or the registration card that comes with the seat. The Eternis S All in One seat has a 10 year life span from date of manufacturer. <div class="bvseo-author">Answered by: CYBEX Customer Care</div> <div class="bvseo-pubdate">Date published: 2022-01-14</div> </div> </div> <div class="bvseo-question-answer" data-questionid="5078883"> <h2 class="bvseo-question"> Is it compatible with the Qbit + all city stroller? </h2> <div class="bvseo-question-detail"> </div> <div class="bvseo-author">Asked by: NessaSilverio</div> <div class="bvseo-answer" data-answerid="5642529"> The Eternis S car seat is not designed to attached to strollers. <div class="bvseo-author">Answered by: CYBEX Customer Care</div> <div class="bvseo-pubdate">Date published: 2021-07-27</div> </div> </div> <div class="bvseo-question-answer" data-questionid="4704669"> <h2 class="bvseo-question"> Where are these made? </h2> <div class="bvseo-question-detail"> </div> <div class="bvseo-author">Asked by: Kelleh11</div> <div class="bvseo-answer" data-answerid="5419877"> The seat is made in the U.S. <div class="bvseo-author">Answered by: CYBEX Customer Care</div> <div class="bvseo-pubdate">Date published: 2020-11-11</div> </div> </div> <div class="bvseo-question-answer" data-questionid="7183554"> <h2 class="bvseo-question"> Does this come with a rebound bar? </h2> <div class="bvseo-question-detail"> </div> <div class="bvseo-author">Asked by: J8880800</div> </div> </div> <script type="text/javascript"> if (document.getElementById('bvseo-questionsSection')) { document.getElementById('bvseo-questionsSection').style.display = 'none'; } </script> <!--end-questions--> <ul id="BVSEO_meta" style="display:none!important"> <li data-bvseo="bvDateModified">y_2025, m_8, d_2, h_5CST</li> <li data-bvseo="ps">bvseo_bulk, prod_bvqa, vn_bulk_3.0.42</li> <li data-bvseo="cp">cp_1, bvpage1</li> <li data-bvseo="co">co_hasquestionsanswers, tq_8</li> <li data-bvseo="cf">loc_en_CA, sid_C4566A55, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]</li> <li data-bvseo="diagnostics">clientName_toysrus-ca</li> </ul> <!--end-bvseo-questions--> <ul id="BVSEOSDK_meta" style="display: none !important;"> <li data-bvseo="sdk">bvseo_sdk, dw_cartridge, 18.2.0, p_sdk_3.2.0</li> <li data-bvseo="sp_mt">CLOUD, getContent, 5ms</li> <li data-bvseo="ct_st">questions, product</li> </ul>
    Cybex

    Cybex Eternis S All in One Car Seat with SensorSafe, Pepper Black

    SKN: 59770

    Cybex Eternis S All in One Car Seat with SensorSafe, Pepper Black is rated 4.4 out of 5 by 87.
    • y_2025, m_8, d_1, h_5
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    Was: $699.99 to Now: $349.98

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    Delivery postal code: L4K 5R5
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