Britax car seats

16 Britax models listed in the US: 5 infant seats, 3 convertible seats, 2 all-in-one seats, 2 harness-to-booster seats, 2 2-in-1 boosters, 2 backless boosters. Limits and specifications were checked against Britax’s US site and manuals on September 17, 2026. Britax US site (opens in a new tab)

Britax car seat comparison table

Britax car seats compared: limits by mode, width, seat weight and usable life
Car seat	Fits child (lb)	Rear-facingRear	Forward-facingForward	BoosterBooster	WidthWidth	Seat weightWeight	Usable lifeLife	Aircraft
One4Life ClickTightAll-in-one	5–120 lb	50 lb	65 lb	120 lb	19.5 in	30 lb	10 yr	Certified
One4Life SlimAll-in-one	5–120 lb	50 lb	65 lb	120 lb	Not published	28 lb	10 yr	Certified
Grow With You ClickTightHarness-to-booster	30–120 lb	Not published	65 lb	120 lb	Not published	25 lb	9 yr	Certified
Grow With YouHarness-to-booster	30–120 lb	Not published	65 lb	120 lb	Not published	23 lb	9 yr	Certified
Highpoint 2-Stage2-in-1 booster	40–120 lb	Not published	Not published	120 lb	Not published	12 lb	10 yr	No
Skyline 2-Stage2-in-1 booster	40–120 lb	Not published	Not published	120 lb	Not published	11 lb	10 yr	No
UpNGo Backless Booster SeatBackless booster	40–120 lb	Not published	Not published	120 lb	17.1 in	3.1 lb (lightest in this table)	10 yr	No
UpNGo Click Backless Booster SeatBackless booster	40–120 lb	Not published	Not published	120 lb	17.1 in	4.5 lb	10 yr	No
Galaxy360 SlimRotating convertible	5–65 lb	50 lb	65 lb	Not published	17 in	Not published	10 yr	No
PoplarConvertible	5–65 lb	50 lb	65 lb	Not published	17 in	27.2 lb	10 yr	Certified
Poplar SConvertible	5–65 lb	50 lb	65 lb	Not published	17 in	28 lb	10 yr	Certified
Cypress Infant Car Seat with Alpine BaseInfant	4–30 lb	30 lb	Not published	Not published	16.9 in	9.7 lb	6 yr	Certified
Willow S Infant Car Seat with Alpine BaseInfant	4–30 lb	30 lb	Not published	Not published	16.9 in	Not published	6 yr	Certified
Willow SC Infant Car Seat with Alpine BaseInfant	4–30 lb	30 lb	Not published	Not published	16.9 in	9.3 lb	6 yr	Certified
Arbor Infant Car Seat with StayTight BaseInfant	4–30 lb	30 lb	Not published	Not published	Not published	9.9 lb	6 yr	Certified
Willow Infant Car Seat with Aspen BaseInfant	4–30 lb	30 lb	Not published	Not published	Not published	8.99 lb	6 yr	Certified

Limits and specifications are each manufacturer’s own, checked September 17, 2026. A dash means the maker does not publish that number. A highlighted number is simply the highest or lowest value in this table, not a recommendation.

All Britax models

Fit my childWeight (lb)Height (in)Age (years)

Shows models with at least one mode whose published limits include all of these numbers. A mode with no published minimum age is not excluded by age. Always check every limit in the manual.

RotatingFAA approvedAnti-rebound

16 of 16 models

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Infant

Arbor Infant Car Seat with StayTight Base

Manufacturer limits for Britax Arbor Infant Car Seat with StayTight Base
Mode	Weight	Height
Rear-facing infant	4–30 lb	17–32 in

Seat weight: 9.9 lb
Width: Not published
Usable life: 6 years
Aircraft: Certified

Anti-rebound
2 colors

Mode	Weight	Height
Rear-facing harness	5–50 lb	18–49 in
Forward-facing harness	30–65 lb	35–49 in

Mode	Weight	Height
Forward-facing harnessfrom 2 years	30–65 lb	35–49 in
Belt-positioning booster	40–120 lb	44–63 in

Mode	Weight	Height
High-back booster	40–120 lb	44–63 in
Backless booster	48–120 lb	46–63 in