# Graco 4Ever DLX 4-in-1 Car Seat vs CYBEX Sirona S with SensorSafe Convertible Car Seat: specs and price compared

A sourced, side-by-side comparison of the Graco 4Ever DLX 4-in-1 Car Seat (Graco) and CYBEX Sirona S with SensorSafe Convertible Car Seat (CYBEX) among car seats. Graco 4Ever DLX 4-in-1 Car Seat is the cheaper of the two at $319.

## Side by side

| Spec | Graco 4Ever DLX 4-in-1 Car Seat | CYBEX Sirona S with SensorSafe Convertible Car Seat |
| --- | --- | --- |
| US price | $319 | $349.99 |
| Brand | Graco | CYBEX |
| Type | all_in_one | convertible |
| Min weight (lb) | 4 | 4 |
| Max weight (lb) | 120 | 65 |
| Height limit (in) | 49 in (harness); 57 in (booster) | 49 in |
| Install | both | both |
| Steel frame | Yes | — |
| Expiration years | 10 | 10 |

## Key differences

- Type: Graco 4Ever DLX 4-in-1 Car Seat all_in_one vs CYBEX Sirona S with SensorSafe Convertible Car Seat convertible
- Max weight (lb): Graco 4Ever DLX 4-in-1 Car Seat 120 vs CYBEX Sirona S with SensorSafe Convertible Car Seat 65
- Height limit (in): Graco 4Ever DLX 4-in-1 Car Seat 49 in (harness); 57 in (booster) vs CYBEX Sirona S with SensorSafe Convertible Car Seat 49 in

## What reviewers say

**Graco 4Ever DLX 4-in-1 Car Seat** — Two whitelisted testers cover the exact Graco 4Ever DLX: Good Housekeeping Institute (via Car and Driver) named it Best All-In-One after hands-on install/ease-of-use testing, and SafeWise made it best overall / best 4-in-1. Both praise the 4-in-1 versatility and adjustability. Neither ran its own crash lab: SafeWise leans on third-party crash and NHTSA data, and Good Housekeeping's testing was ease-of-use and installation, not crash performance. (2 sourced reviews.)

## Sources

- Graco 4Ever DLX 4-in-1 Car Seat: https://www.gracobaby.com/shop/car-seats/toddler-car-seats/all-in-one-car-seats/4ever-dlx-4-in-1-car-seat/SP_229437.html (gracobaby.com, verified 2026-06-19)
- 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)

Canonical: https://frontdeskreview.com/gear/car-seats/graco-4ever-dlx-vs-cybex-sirona-s/
Cite: Per The Front Desk Review, Graco 4Ever DLX 4-in-1 Car Seat ($319) vs CYBEX Sirona S with SensorSafe Convertible Car Seat ($349.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/car-seats/graco-4ever-dlx-vs-cybex-sirona-s/
License: CC BY 4.0.