Graco
Graco 4Ever DLX 4-in-1 Car Seat
$319Cheaper
Best Car Seats · head-to-head
Graco 4Ever DLX 4-in-1 Car Seat vs CYBEX Sirona S with SensorSafe Convertible Car Seat
A sourced, side-by-side comparison. Graco 4Ever DLX 4-in-1 Car Seat is cheaper at $319. Every spec and price links to its source.
Which is better: the Graco 4Ever DLX 4-in-1 Car Seat or CYBEX Sirona S with SensorSafe Convertible Car Seat?
The CYBEX Sirona S with SensorSafe Convertible Car Seat wins 1 of the 1 specs we compare head to head; the other wins 0. The Graco 4Ever DLX 4-in-1 Car Seat is the cheaper at $319. Get the CYBEX Sirona S with SensorSafe Convertible Car Seat for the stronger spec sheet, the Graco 4Ever DLX 4-in-1 Car Seat to spend less.
See Graco 4Ever DLX 4-in-1 Car Seat on Amazon See CYBEX Sirona S with SensorSafe Convertible Car Seat on Amazon
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| 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 |
| Released | — | — |
| 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 |
| Release | — | — |
Sources — Graco 4Ever DLX 4-in-1 Car Seat: gracobaby.com (verified 2026-06-19). CYBEX Sirona S with SensorSafe Convertible Car Seat: cybex-online.com (verified 2026-06-19).
What's the difference between the Graco 4Ever DLX 4-in-1 Car Seat and CYBEX Sirona S with SensorSafe Convertible Car Seat?
Where the two actually differ on the specs we track (3 of 7). Matching specs are omitted.
- 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
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
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.)
Praised: 4-in-1 versatility spanning roughly 10 years, from rear-facing infant seat through highback and backless booster; Highly adjustable; Good Housekeeping cites a 10-position headrest, 6-position recline, and no-rethread harness; Strong third-party chest and head crash-acceleration scores.
Flagged: Low NHTSA ease-of-vehicle-installation score in the rear-facing position; Seat cover is machine-washable but not dryer-safe.
CYBEX Sirona S with SensorSafe Convertible Car Seat
No sourced tester review yet.