Britax One4Life Slim vs Maxi-Cosi Sela
The One4Life Slim rear-faces up to 50 lb, versus 40 lb.
Only the differences are shown.
| Britax One4Life Slim | Maxi-Cosi Sela | |
|---|---|---|
| Type | All-in-one | All-in-one |
| List price | $449.99 | $449.99 |
| Rear-facing weight | Up to 50 lbHighest rear-facing limit | 5–40 lb |
| Rear-facing height | 18–49 in | 19–40 in |
| Forward-facing weight | Up to 65 lb | 30–65 lb |
| Forward-facing height | 35–49 in | 34.4–49 in |
| Booster weight | Up to 120 lb | 40–100 lb |
| Booster height | 44–63 in | 43.4–52 in |
| Seat weight | 28 lb | 27.25 lbLightest |
| Width | 17.5 in | Not listed |
| Head rule | Rear-facing: when the top of child's head is at least 1 in (2.5 cm) below the top edge of head restraint. Forward-facing: when the top of the ears are below the top of head restraint. Booster: when top of child's ears are BELOW the top of head restraint. | Rear-facing: the top of your child's head MUST be at least 1 in. (2.5 cm) below the top of the car seat's headrest. Forward-facing: the top of your child's ears MUST be below the top of the car seat's headrest. Booster: the top of your child's ears should never be above the top of the booster seat's headrest. |
| Newborn insert | Head infant insert + middle infant insert or lower infant insert (optional): may be used with children weighing between 5 and 20 lbs (2.3 - 9.1 kg) rear-facing; DO NOT use any infant inserts with children weighing over 20 lbs rear-facing or forward-facing. | Head and body pillows, optional; must be used together (manual). Maker page: infant head and lumbar inserts. |
| Installation | ClickTight (seat belt) | Rigid LATCH, seat belt (built-in lock-off arm) |
| Load leg | No | No |
| Anti-rebound bar | No | No |
| Rotates | No | No |
| Harness heights | 15 | 10 |
| Recline positions | 9 | 8 |
| Aircraft label | Certified for aircraft, per the maker | Certified for aircraft, per the maker |
| No added flame retardants | Yes | Yes |
| Expires after | 10 years | 10 years |
Britax One4Life Slim
A narrower version of Britax's One4Life that stays in one seat from rear-facing through high-back booster, using the ClickTight belt-lock install.
- Rear-facing to 50 lb
- ClickTight belt install
- Cover made without added flame-retardant chemicals, per Britax
- Anti-rebound bar sold separately
- Heavy, belt-installed seat
Maxi-Cosi Sela
A non-rotating Maxi-Cosi all-in-one with rigid LATCH, a belt lock-off and tension indicators.
- Rigid LATCH and tension indicators
- 10 headrest/harness positions
- 8 recline positions
- 27 lb seat
- Rear-facing capped at 40 lb
One4Life Slim or Sela?
Answers come from each maker's published specs. Safety and health questions link to the agency or medical source.
Which one will my child use longer, the One4Life Slim or the Sela?
The Britax One4Life Slim: it goes rear-facing, then forward-facing with a harness, then booster, up to 120 lb. The Sela goes rear-facing, then forward-facing with a harness, then booster, up to 100 lb. The One4Life Slim expires after 10 years.
Which is easier to travel with?
One4Life Slim: certified for planes, 28 lb. Sela: certified for planes, 27.3 lb.
Still wondering? Write to us at hello@cribpicks.com and we'll look it up.