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Britax One4Life Convertible Car Seat


Enjoy safe travels from birth to big kid with the Britax(R) One4Life(TM) Convertible Car Seat. This car seat features 4 configurations, including rear facing infant car seat, rear facing toddler car seat, forward facing 5 point harness car seat, and forward facing high back booster seat. Start out with the rear facing car seat for infants and toddlers, then graduate to the forward facing car seat and booster car seat for preschoolers and big kids. ClickTight(R) technology makes it easy to install your new baby car seat with confidence. Simply open the seat, follow the path to thread the seat belt, buckle it, and click the seat closed. The One4Life(TM) all in one car seat is outfitted with a high-strength steel frame, a SafeCell(TM) crumple zone, and a patented V-shaped tether. The easy-pull adjuster lets you move the 15-position headrest and no-rethread harness at the same time, so you can find a secure fit in seconds. Quickly adjust between 9 recline positions and use the easy-read level indicators to find the correct angle. The Britax(R) One4Life(TM) comes with an easy-to-remove, machine-washable cover, and the knit construction is naturally flame-retardant.


Product Specs

Product Dimensions20.5" x 19.5" x 25"

Harness Slot Heights9" - 19"

Buckle Strap Depths5.5" - 8.75"

Child Weight5-120 lbs

Rear-facing Harnessed HeightLess than 49"

Forward-facing Harnessed HeightLess than 49"

Belt Positioning Booster Height44" - 63"

Rear-facing Harnessed Weight5-50 lbs

Forward-facing Harnessed Weight22-65 lbs

Belt Positioning Booster Weight40-120 lbs

Seat Area Depth/Width13.25" / 11"

Recommendation – Britax strongly recommends:

  • Children ride rear-facing to the highest weight or height specified
  • Children should remain in a child seat with a 5-point harness until reaching the maximum weight or height allowed
  • The top tether be used at ALL times when installing the child restraint forward-facing.