The Front Desk Review

CYBEX · Updated June 2026

CYBEX Sirona S with SensorSafe Convertible Car Seat: price & specs

CYBEX Sirona S with SensorSafe Convertible Car Seat. Every price and spec below is linked to its source and dated — no guesses.

Source: cybex-online.com verified ✓ corroborated verify in ledger

SilverDeskmark56/100#8 of 18 in class

The CYBEX Sirona S with SensorSafe Convertible Car Seat is listed at $349.99 on cybex-online.com as of 2026-06-27, #8 cheapest of 17 car seats (median $349.99); other retailers may be lower. It earns a Silver Deskmark — 56/100 pay-blind standing, #8 of 18 in class.

Verified Jun 27, 2026 · figures linked to their source in the table below

Cheapest car seats: Graco TurboBooster LX Backless Booster with LATCH — $49.99

See CYBEX Sirona S with SensorSafe Convertible Car Seat on Amazon Live price at the store — may differ from the dated listed price above. As an Amazon Associate we earn from qualifying purchases.
CYBEX Sirona S with SensorSafe Convertible Car Seat — CYBEX
Image: cybex-online.com (© CYBEX)

Is the CYBEX Sirona S with SensorSafe Convertible Car Seat a good buy?

At $350, the CYBEX Sirona S with SensorSafe Convertible Car Seat is #7 cheapest of the 17 car seats we track, where the median is $349.99. On the spec sheet, its min weight of 4 lb is the lowest of the 18, its expiration years of 10 is the highest of the 16, and its max weight of 65 lb is at the median of the 18.

Specifications

Price (US)$349.99 Last known US retail price; official cybex-online.com page now states 'No longer available' (US discontinued)
BrandCYBEX
Released—
Typeconvertible
Min weight (lb)4
Max weight (lb)65
Height limit (in)49 in
Installboth
Steel frame—
Expiration years10

Source: cybex-online.com (verified 2026-06-19) · corroborated by safeintheseat.com. Official cybex-online.com page explicitly states 'No longer available', confirming US discontinuation (re-verified 2026-06-19). Weight RF 4-50 lb / FF 22-65 lb and height 17-49 in confirmed on cybex-online.com. Expiration 10 years per cybex-online.com. $349.99 was the last-known US retail price; steel_frame not confirmed by manufacturer documentation, left null.

Is the CYBEX Sirona S with SensorSafe Convertible Car Seat worth it vs cheaper car seats?

CYBEX Sirona S with SensorSafe Convertible Car Seat against its closest cheaper and pricier car seats on the specs that matter — every value sourced. See all 17 ranked

ProductPriceTypeMin weight (lb)Max weight (lb)Height limit (in)Install
CYBEX Sirona S with SensorSafe Convertible Car Seat this$349.99convertible46549 inboth
Graco 4Ever DLX 4-in-1 Car Seat$319all_in_one412049 in (harness); 57 in (booster)both
Clek Oobr High Back Booster Car Seat$369.99booster4010057 inboth

Frequently asked questions

How much does the CYBEX Sirona S with SensorSafe Convertible Car Seat cost?

The CYBEX Sirona S with SensorSafe Convertible Car Seat has a US price of $349.99 (Last known US retail price; official cybex-online.com page now states 'No longer available' (US discontinued)), as of 2026-06-19.

How does the CYBEX Sirona S with SensorSafe Convertible Car Seat compare on price?

At $350, the CYBEX Sirona S with SensorSafe Convertible Car Seat is #7 cheapest of the 17 car seats we track, where the median is $349.99.

What are the CYBEX Sirona S with SensorSafe Convertible Car Seat's key specs?

CYBEX Sirona S with SensorSafe Convertible Car Seat (CYBEX): type convertible, min weight lb 4, max weight lb 65, height limit in 49 in, install both. Full sourced spec sheet verified 2026-06-19.

Price of record: $349.99 at cybex-online.com, 2026-06-27. Other retailers may be lower — check the current price:

See CYBEX Sirona S with SensorSafe Convertible Car Seat on Amazon As an Amazon Associate we earn from qualifying purchases.

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