# CYBEX Sirona S with SensorSafe Convertible Car Seat vs Maxi-Cosi Pria Max All-in-One Convertible Car Seat: specs and price compared

A sourced, side-by-side comparison of the CYBEX Sirona S with SensorSafe Convertible Car Seat (CYBEX) and Maxi-Cosi Pria Max All-in-One Convertible Car Seat (Maxi-Cosi) among car seats. Maxi-Cosi Pria Max All-in-One Convertible Car Seat is the cheaper of the two at $247.49.

## Side by side

| Spec | CYBEX Sirona S with SensorSafe Convertible Car Seat | Maxi-Cosi Pria Max All-in-One Convertible Car Seat |
| --- | --- | --- |
| US price | $349.99 | $247.49 |
| Brand | CYBEX | Maxi-Cosi |
| Released | — | 2021 |
| Type | convertible | all_in_one |
| Min weight (lb) | 4 | 5 |
| Max weight (lb) | 65 | 100 |
| Height limit (in) | 49 in | 52 in (booster); 49 in (FF harness) |
| Install | both | both |
| Steel frame | — | No |
| Expiration years | 10 | 10 |

## Key differences

- Type: CYBEX Sirona S with SensorSafe Convertible Car Seat convertible vs Maxi-Cosi Pria Max All-in-One Convertible Car Seat all_in_one
- Min weight (lb): CYBEX Sirona S with SensorSafe Convertible Car Seat 4 vs Maxi-Cosi Pria Max All-in-One Convertible Car Seat 5
- Max weight (lb): CYBEX Sirona S with SensorSafe Convertible Car Seat 65 vs Maxi-Cosi Pria Max All-in-One Convertible Car Seat 100
- Height limit (in): CYBEX Sirona S with SensorSafe Convertible Car Seat 49 in vs Maxi-Cosi Pria Max All-in-One Convertible Car Seat 52 in (booster); 49 in (FF harness)

## Sources

- CYBEX Sirona S with SensorSafe Convertible Car Seat: https://www.cybex-online.com/en/us/p/cs-go-sirona-s-sensorsafe-3.html (cybex-online.com, verified 2026-06-19)
- Maxi-Cosi Pria Max All-in-One Convertible Car Seat: https://maxicosi.com/products/pria-max-all-in-one-convertible-car-seat-cc416 (maxicosi.com, verified 2026-06-19)

Canonical: https://frontdeskreview.com/gear/car-seats/cybex-sirona-s-vs-maxi-cosi-pria-max/
Cite: Per The Front Desk Review, CYBEX Sirona S with SensorSafe Convertible Car Seat ($349.99) vs Maxi-Cosi Pria Max All-in-One Convertible Car Seat ($247.49) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/car-seats/cybex-sirona-s-vs-maxi-cosi-pria-max/
License: CC BY 4.0.