# Cybex Sirona S 360 Rotational Convertible Car Seat with SensorSafe \| live price, prepared checkout ## Built for shopping agents: what RoboTrunk does for every product We asked shopping agents, including Meta's Muse first-hand, what they need from a store. This is what they asked for, and what we have built. RoboTrunk is working through its catalogue, so a step may not be done for this one yet. 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Sold and shipped by anbbaby\.com, anbbaby.com; payment happens on the store's own checkout. Brand: Cybex ## Variants - Manhattan Grey: USD 329.99; out of stock. Variant id: `gid://shopify/ProductVariant/31923226050646` - Seller: anbbaby\.com. Price: USD 329\.99. Stock: out of stock. Variant: Manhattan Grey, variant id `gid://shopify/ProductVariant/31923226050646`. shipping not recorded; confirmed at merchant checkout. returns not recorded; confirmed at merchant checkout. [Public evidence](https://anb-baby.myshopify.com/products/cybex-sirona-s-360-rotational-convertible-car-seat-with-sensorsafe). [Comparison page](/compare/want/convertible-car-seats-compared-by-independent-crash-test-res). [Get ready to buy from anbbaby\.com: prepare checkout](/checkout-prepare?merchant=anbbaby-com&product_id=gid%3A%2F%2Fshopify%2FProduct%2F4553341763670&variant_id=gid%3A%2F%2Fshopify%2FProductVariant%2F31923226050646). ## Checked facts Each fact below was checked against the source it cites before it was published. Each carries that source's link and the time RoboTrunk read it. 39 checked facts, checked 2026-09-25T00:46:07.120Z. Research depth: trimmed read. Deep read: the store's own data and 9 outside pages \(the store's own product page; maker page; manual; review; regulator recall search \(CPSC \(United States\)\); regulator recall search \(Health Canada\); regulator recall search \(ACCC Product Safety Australia\)\), each read in full by RoboTrunk and trimmed to its main content, then written up and checked\. Facts from the maker or a manual quote the page word for word; what real users report is summarised with a link to the page read\. Recall status was checked directly with CPSC \(United States\), Health Canada, ACCC Product Safety Australia: The supplied CPSC search returned eight unrelated Cybex\-branded fitness\-equipment recalls, and the Health Canada search returned unrelated carriers, strollers and fitness products\. The supplied Australian feed covered only the 100 most recent recalls through 2026\-09\-21 and found no Cybex or Sirona S entry, so it does not exclude older Australian notices\. None of the provided regulator results applies to Sirona S SensorSafe product code 519004439\. - Recline: There are 12 recline positions, adjustable while the child is buckled\.. Source: (guide), read 2026-09-25T00:31:28.629Z. - Product type: It is a convertible car seat intended from newborn to approximately four years\.. Source: (guide), read 2026-09-25T00:31:32.798Z. - Side\-impact protection: Cybex claims the deployable Linear Side\-impact Protection can reduce forces on the child by up to 25% compared with the same seat without it\.. Source: (guide), read 2026-09-25T00:31:34.732Z. - Forward\-facing limits: Forward\-facing use requires all of the following: 22–65 lb, 28–49 inches, at least one year old, and ears below the headrest top\.. Source: (manual), read 2026-09-25T00:31:37.661Z. - Independent test summary: Consumer Reports scored it 53 overall, with 3/5 for general ease of use and both vehicle\-fit directions, 2/5 for rear and forward LATCH installation, and a “Better” harnessed crash\-protection rating\.. Source: (review), read 2026-09-25T00:31:39.972Z. - Touch and padding: Testers found the upholstery rougher than average and noticed a distinct chemical smell, but described the padding as substantial, evenly distributed and dense, with a slow memory\-foam\-like rebound\.. Source: (review), read 2026-09-25T00:31:43.670Z. - Seat weight: The seat weighs 30\.4 lb without the infant positioning pillow\.. Source: (guide), read 2026-09-25T00:31:32.798Z. - SensorSafe alerts: The Bluetooth chest clip can alert the app when it is unbuckled, the rear seat becomes too hot or cold, or the driver leaves the child behind\.. Source: (guide), read 2026-09-25T00:31:34.732Z. - Materials: The side wings are lined with thick energy\-absorbing EPP foam\.. Source: (manual), read 2026-09-25T00:31:37.661Z. - Installation: Lab evaluators found the straps, tensioning arms and crowded belt path cumbersome\. EasyLock was non\-intuitive and sensitive to belt tension, although the swivel and harness worked well once installed\.. Source: (review), read 2026-09-25T00:31:39.972Z. - Comfort: The infant insert provided strong head cushioning and the main seat was among the more comfortable tested, though the insert looked lumpy and had about a one\-inch gap between its bottom and back sections\.. Source: (review), read 2026-09-25T00:31:43.670Z. - Listed dimensions: The maker’s basic measurements are 24\.5 inches long, 19 inches wide and 25\.5 inches high\.. Source: (guide), read 2026-09-25T00:31:32.798Z. - Damaged or used seats: Do not use one with an unknown history or with damaged, broken or missing parts\.. Source: (manual), read 2026-09-25T00:31:37.661Z. - Bulk and chest clip: Testing identified the seat as heavy and bulky, and found the SensorSafe chest clip difficult to open\.. Source: (review), read 2026-09-25T00:31:39.972Z. - Installation experience: Testers found LATCH installation straightforward and among the easiest tested, but belt installation less intuitive because access was cramped and the two\-step lock\-off was finicky\. This differs from Consumer Reports, which rated both LATCH modes only 2/5\.. Source: (review), read 2026-09-25T00:31:43.670Z. - In\-vehicle dimensions: The maker gives installed upright dimensions of 23 H × 21\.5 W × 30 D inches rear\-facing and 31 H × 19 W × 28\.5 D inches forward\-facing; actual size depends on the vehicle seat\.. Source: (guide), read 2026-09-25T00:31:32.798Z. - Magnets warning: The magnetic buckle holders present a swallowing hazard, and users should ask a doctor about compatibility with pacemakers or similar devices\.. Source: (manual), read 2026-09-25T00:31:37.661Z. - Daily use: The harness adjusted smoothly and was easier than average to tighten and loosen\. The buckle was large and generally easy, though its release needed more pressure and the magnetic retainers required careful alignment\.. Source: (review), read 2026-09-25T00:31:43.670Z. - Vehicle fit: Cybex does not guarantee universal fit and recommends trial\-fitting it rear\- and forward\-facing in middle and outboard rear positions\.. Source: (guide), read 2026-09-25T00:31:32.798Z. - Airbag warning: Do not use this restraint in a front seat equipped with an airbag; consult the vehicle manual for child\-restraint installation guidance\.. Source: (manual), read 2026-09-25T00:31:37.661Z. - Durability and cleaning: The side\-mounted cup holder became visibly scuffed after minimal testing\. Testers also warned that debris or dried liquid can collect around the rotating base and may eventually interfere with rotation, a problem they said online users had reported\.. Source: (review), read 2026-09-25T00:31:43.670Z. - Rotation and recline: The seat rotates 360 degrees using one hand\.. Source: (guide), read 2026-09-25T00:31:32.798Z. - Small\-car fit: At roughly 30 inches front\-to\-back in testing, it may restrict front\-seat travel in a small car, particularly for a tall front occupant\. Its width was comparatively moderate for a rotating seat\.. Source: (review), read 2026-09-25T00:31:43.670Z. - Integrated base: The base is not detachable\.. Source: (guide), read 2026-09-25T00:31:32.798Z. - Crash testing: Its tested head\-sensor result was comparatively strong, but the chest result was worse than the group average\. Overall, it met federal requirements but did not distinguish itself among the highest\-performing seats in that test group\.. Source: (review), read 2026-09-25T00:31:43.670Z. - Installation methods: It can be installed with lower anchors or the vehicle belt, but never both simultaneously; the vehicle\-belt method is recommended to avoid reinstalling when lower\-anchor limits are reached\.. Source: (guide), read 2026-09-25T00:31:32.798Z. - SensorSafe experience: Testers liked the potentially lifesaving alerts but worried that frequent temperature or departure notifications could lead some users to disable them\.. Source: (review), read 2026-09-25T00:31:43.670Z. - Lower\-anchor limits: Lower\-anchor installation is limited to a 30 lb child rear\-facing and 35 lb child forward\-facing; beyond those weights, use the vehicle belt\.. Source: (guide), read 2026-09-25T00:31:32.798Z. - One\-time belt installation: The EasyLock bar provides one vehicle\-belt installation for rear\- and forward\-facing modes and is claimed to require up to four times less force\.. Source: (guide), read 2026-09-25T00:31:32.798Z. - Center\-seat compatibility: Center\-seat lower\-anchor installation is allowed only when anchor spacing is 11–20 inches and the vehicle manufacturer permits it\.. Source: (guide), read 2026-09-25T00:31:32.798Z. - Forward\-facing tether: Cybex recommends using the top tether forward\-facing whenever an anchor is available, although the seat meets applicable US standards with or without it and the load leg\.. Source: (guide), read 2026-09-25T00:31:32.798Z. - Load leg: The height\-adjustable load leg transfers crash energy to the vehicle floor and can reduce rotation in certain crashes by up to 30%\.. Source: (guide), read 2026-09-25T00:31:32.798Z. - LSP use: Deploy the LSP only on the vehicle\-door side; do not deploy it toward the vehicle centre or for a middle\-seat installation\.. Source: (guide), read 2026-09-25T00:31:32.798Z. - Included items: The box includes the Sirona S seat, SensorSafe, one cup holder and the user guide\.. Source: (guide), read 2026-09-25T00:31:32.798Z. - Care: Machine\-wash the fabrics cold on a delicate cycle with mild detergent\.. Source: (guide), read 2026-09-25T00:31:32.798Z. - After a crash: Cybex says to replace the restraint after every crash, even if it was unoccupied\.. Source: (guide), read 2026-09-25T00:31:32.798Z. - Clothing warning: Do not harness a child in thick or puffy clothing; place a jacket or blanket over the secured child instead\.. Source: (guide), read 2026-09-25T00:31:32.798Z. - Recline aid: For some rear\-facing installations, the maker permits a rolled towel or pool noodle beneath the seat near the vehicle seatback to reach the correct recline zone\.. Source: (guide), read 2026-09-25T00:31:32.798Z. - Warranty support: Warranty claims for seats bought from Cybex’s online shop or retail partners are handled by Consumer Services through the contact form; no warranty duration is stated in the supplied page\.. Source: (guide), read 2026-09-25T00:31:32.798Z. The full evidence pack, with every citation, source and gap: [evidence pack](/agent/evidence/anbbaby-com--cybex-sirona-s-360-rotational-convertible-car-seat-with-sensorsafe) ## Questions we researched but could not confirm Every fact above is cited. To find them we read the store listing, the maker's page, the manual, owner reviews and the recall records of CPSC \(United States\), Health Canada and ACCC Product Safety Australia. We also chased the questions below across those sources and found no reliable answer, so you know exactly where the evidence ends and never have to guess. - What fibres and treatments are used in the Manhattan Grey cover? - Does the fabric contain added flame\-retardant chemicals? - Does the Manhattan Grey fabric fade, pill or rub off over time? - What tools, if any, are needed for installation? - What is the written warranty period and exactly what does it cover? - Which phone operating systems and versions support SensorSafe? - How long does the SensorSafe battery last, and is it replaceable? - Can the rotating mechanism be safely cleaned if debris enters the base? - Can three Sirona S seats fit across a typical rear bench? - Which replacement covers, inserts and harness parts are available? - Is the newborn insert included with every Manhattan Grey package? - At what child size should the newborn inserts be removed? To buy this through RoboTrunk, pass merchant `anbbaby-com`, product_id `gid://shopify/Product/4553341763670` and one variant_id from the list above. Product image of Cybex Sirona S 360 Rotational Convertible Car Seat with SensorSafe, supplied by anbbaby\.com: This product on anbbaby.com: Retrieved 2026-10-18T19:50:07.465Z from This page is published by RoboTrunk, a store built for shopping agents. The store named on this page sells the product and ships it. RoboTrunk is not the seller and never holds the money. Buying works in one path. RoboTrunk's tools prepare a checkout at that store, then hand back a short-lived link. The person approves the total; once RoboTrunk has checked the store's total against it, the person is given the checkout link to tap in their own browser, or, if the person prefers and gives permission, their agent may open the link and finish there, and payment always happens on the store's own checkout page. RoboTrunk never takes the payment or sees a card. 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