# CYBEX Sirona S with SensorSafe Convertible Car Seat: specs and price

**Price (US):** $349.99 at cybex-online.com (Last known US retail price; official cybex-online.com page now states 'No longer available' (US discontinued)), as of 2026-06-27. A sourced, dated price of record — other retailers (incl. Amazon) may be lower. Among the 17 car seats we track it is #8 cheapest of 17; category median $349.99.
**Brand:** CYBEX
**Deskmark:** Silver Deskmark — pay-blind category standing 56/100, #8 of 18 in class (independent, computed from sourced data, never for sale).
**Price tracked since:** June 2026

## Specifications

| Spec | Value |
| --- | --- |
| Price (US) | $349.99 |
| Brand | CYBEX |
| Type | convertible |
| Min weight (lb) | 4 |
| Max weight (lb) | 65 |
| Height limit (in) | 49 in |
| Install | both |
| Steel frame | — |
| Expiration years | 10 |

## Where it stands

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.

## 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.

Source: https://www.cybex-online.com/en/us/p/cs-go-sirona-s-sensorsafe-3.html (cybex-online.com, accessed 2026-06-19)
Corroboration: https://www.safeintheseat.com/seats/safe-in-the-seat-full-review-cybex-sirona-s-car-seat-review-usa (accessed 2026-06-19)
Canonical: https://frontdeskreview.com/product/car-seats/cybex-sirona-s/
Cite: Per The Front Desk Review, the CYBEX Sirona S with SensorSafe Convertible Car Seat price of record was $349.99 as of 2026-06-19 — https://frontdeskreview.com/product/car-seats/cybex-sirona-s/
License: CC BY 4.0. Price history: https://frontdeskreview.com/data/price-history.jsonl