Infant (rear-facing carrier) car seats
Rear-facing-only carriers with a detachable base — for newborns up to ~30-35 lb. Click in and out of a stroller; outgrown soonest.
Short answer: Going by each maker's manual, the highest rear-facing limit here is 35 lb (13 of the 19 seats). Useful life is 6 to 9 years where the manual gives one.
Weight limits and useful life, seat by seat
The weight ranges each maker prints in the seat's manual. Tap a seat to see it side by side with a similar model, with height limits and a link to its manual.
| Car seat | Rear-facing | Useful life |
|---|---|---|
| Chicco KeyFit 35 | 4–35 lb | 6 yrs |
| Graco SnugRide SnugFit 35 | 4–35 lb | 7 yrs |
| Nuna PIPA RX | 4–30 lb | — |
| UPPAbaby MESA V2 | 4–35 lb | 7 yrs |
| Maxi-Cosi Mico Luxe | 4–30 lb | 8 yrs |
| Cybex Aton G | 4–35 lb | — |
| Chicco KeyFit 30 | 4–30 lb | 6 yrs |
| Graco SnugRide 35 Lite LX | 4–35 lb | 7 yrs |
| Britax B-Safe Gen2 | 4–35 lb | 6 yrs |
| Nuna PIPA Lite RX | 4–32 lb | — |
| Cybex Aton 2 | 4–35 lb | — |
| Maxi-Cosi Coral XP | 4–22 lb | 8 yrs |
| Doona Infant Car Seat & Stroller | 4–35 lb | — |
| Clek Liing | 4–30 lb | 9 yrs |
| Evenflo LiteMax 35 | 4–35 lb | — |
| UPPAbaby MESA Max | 4–35 lb | 7 yrs |
| Chicco Fit2 | 4–35 lb | 6 yrs |
| Peg Perego Primo Viaggio 4-35 Nido | 4–35 lb | 7 yrs |
| Cybex Cloud G Lux | 4–35 lb | — |
Common questions
Which infant car seats have the highest rear-facing weight limit?
The Chicco KeyFit 35, the Graco SnugRide SnugFit 35, the UPPAbaby MESA V2, the Cybex Aton G, the Graco SnugRide 35 Lite LX, the Britax B-Safe Gen2, the Cybex Aton 2, the Doona Infant Car Seat & Stroller, the Evenflo LiteMax 35, the UPPAbaby MESA Max, the Chicco Fit2, the Peg Perego Primo Viaggio 4-35 Nido and the Cybex Cloud G Lux list a rear-facing limit of 35 lb, the highest here. The lowest is 22 lb (the Maxi-Cosi Coral XP). These are the makers' printed limits; your child's height also has to fit.
How long do infant car seats last before they expire?
The manuals list a useful life of 6 to 9 years. In the manuals we cite, it counts from the date of manufacture, which is printed on the seat's label. For 7 of the 19, the manual we cite gives no figure, so check the label on the seat. More by brand on car seat expiration.
Which of these infant car seats are narrow enough for 3-across?
4 of the 19 are made narrow for fitting three across: the Chicco KeyFit 35, the Chicco KeyFit 30, the Cybex Aton 2 and the Clek Liing. Whether three fit depends on your back seat, so test-fit in your car.
Other stages: Convertible · All-in-one · Booster · narrow seats for 3-across