Britax One4Life Slim
Rear-facing: 5-50 lbs. | 18-49″
Forward-facing: 30-65 lbs. | 35-49″
Pros:
- Very narrow; great for 3-across
- On-board harness storage for booster mode
- Robust ClickTight belt-tensioning lockoff system
Cons:
- Not compatible with vehicle head rests that angle forward
More info
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Specifications
Rear-Facing
Weight limits: 5-50 lbs.
Height limits: 18-49″ or less and head must be 1” below top of head rest
Forward-Facing
Weight limits: 22-65 lbs.
Height limits: 35-49″
Age limits: After reaching RF weight and height limits
Highback Belt-Positioning Booster
Weight limits: 40-120 lbs.
Height limits: 44-63”
Age limits:
A lockoff is a built-in feature that locks your seat belt for you. When a lockoff is present, you will not need to engage the locking mechanism of the seat belt.
A belt tensioner tightens the seat belt for you with little effort; it uses leverage to make the job easier. It presses the belt into a channel(s) to shorten it mechanically and create the tension.
A load leg rests on the floor of the vehicle and manages crash energy to reduce head injury in rear-facing carseats. It’s available on 2 convertible models. Not all vehicles allow load legs.
An anti-rebound bar (ARB) is an energy management feature that helps stabilize a rear-facing carseat and stops it from pivoting around its belt path. ARBs can be found on rear-facing only infant seats and on convertible/all-in-one seats.
Widest point: 17 ½”
Highest harness height: 19″
Highest shoulder belt guide: 21 ½”
Installation/Vehicle Info
Lockoff: Yes
Belt-tensioner for easy install: Yes
Load leg: No
Anti-rebound bar: Available as an accessory
LATCH allowed to secure seat when in use as belt-positioning booster: Yes
Manufacturer’s preferred method of installation: Seat belt
CarSeatSite notes on installation: Try installing this seat forward-facing first before your return window is closed. The One4Life/One4Life Slim is incompatible with vehicles that have head rests that protrude forward. If you can remove them, you will need to do so before installing this seat forward-facing. While this carseat is a narrow carseat, it’s boxy shape means that it may not work well in a 3-across setting in a very small back seat.
Vehicle seat protectors: Not allowed
Flame retardant free covers available: Yes
FAA approved: Yes
Crash replacement guidelines: After a moderate to severe crash following NHTSA guidelines
Fit to Child
Harness type: No-rethread
Inserts: Lower infant insert (optional 5-20 lbs.; must remove at 20 lbs.), middle infant insert (optional 5-20 lbs.; must remove at 20 lbs.), head insert (must be used with middle infant insert; must remove at 20 lbs. with middle infant insert)
Newborn fit:
Belt-positioning booster fit:
Lifespan/expiration: 10 years
Comments
Cup holders are optional and removable. If you remove them, the cup holder caps must be put in their place. If you have a model with an anti-rebound bar or you purchase an anti-rebound bar, it is used rear-facing only and must be removed when the carseat is used forward-facing.