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CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED ‘AS IS’ AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.
Price on Amazon.com as of 2026-11-02 05:04 UTC, and subject to change.
An all-in-one car seat with 3 modes: rear-facing harness 5 to 40 lb, 19 to 40 in; forward-facing harness 30 to 65 lb, 34.4 to 49 in; belt-positioning booster (high-back) 40 to 100 lb, 43.4 to 52 in.
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CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED ‘AS IS’ AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.
The Maxi-Cosi Sela is an all-in-one seat: rear-facing from 5 to 40 lb and 19 to 40 inches, forward-facing with harness from 30 to 65 lb and 34.4 to 49 inches, and a high-back booster from 40 to 100 lb and 43.4 to 52 inches. It installs with rigid LATCH or the vehicle belt and expires after 10 years.
The Sela suits families who want one seat from birth to booster with rigid LATCH and a belt lockoff, and who do not need rotation. It is certified for aircraft with the harness. The Andi 360 shares its limits and adds rotation, but Maxi-Cosi lists it at 40.52 lb against 27.25 lb for the Sela, and it is not certified for aircraft.
A research summary of Maxi-Cosi’s published specifications and manual, read . Not a hands-on test or a crash-safety rating.
This seat covers 3 stages, and a child has to meet every limit of the stage they are in. Maxi-Cosi gives it a 10-year life from the date of manufacture, so check the date label before using a hand-me-down.
| Mode | Child weight | Child height | Minimum age | Conditions |
|---|---|---|---|---|
| Rear-facing harness | 5 to 40 lb | 19 to 40 in | Not published | — |
| Forward-facing harness | 30 to 65 lb | 34.4 to 49 in | Not published | — |
| Belt-positioning booster (high-back) | 40 to 100 lb | 43.4 to 52 in | Not published | — |
A child must meet every limit for the mode they use. The labels on your seat and its manual are the final word.
Every install is a fit between one seat and one vehicle. Read both manuals, and use a free inspection station if anything is unclear.
Maxi-Cosi does not publish a width for this seat, so measure your back seat and compare it with the seat in a store before buying. It weighs 27.25 lb, which matters if you will move it between cars or carry it through an airport.
Caspian Caviar, Truffle, Escargot.
Install with the rigid LATCH connectors or the vehicle belt, never both. The manual limits rigid LATCH to children up to 35 lb rear-facing and up to 40 lb forward-facing; past those weights, use the vehicle belt. Forward-facing belt installs route the belt behind the lockoff arm, which you reach by folding up the headrest pad. The tether is not used rear-facing and stays in storage, but forward-facing it must be attached and tightened when anchors are available. The seat must not move more than 1 inch at the belt path.
Source: Maxi-Cosi Sela All-in-One Convertible Car Seat user guide (PDF)
The Sela has eight recline positions. Rear-facing uses positions 1 to 4, set as close to the rear-facing level line as possible, and the manual says never to use positions 5 to 8 rear-facing. For children 5 to 30 lb, the seat may be slightly more reclined but not more upright than the level line shows. For children 30 to 40 lb who can sit up unassisted, install it as close to the level line as possible. Forward-facing uses only positions 5 to 8, and booster mode uses only position 8, fully upright.
Source: Maxi-Cosi Sela All-in-One Convertible Car Seat user guide (PDF)
Rear-facing, the head must be at least 1 inch below the top of the headrest, with straps at or slightly below the shoulders. Forward-facing, the ears must be below the headrest top and the straps at or slightly above the shoulders. In booster mode, stop if the ears pass the headrest top. The seat pad machine washes separately on a gentle cold cycle and tumble dries for 10 to 12 minutes on low heat. A seat pad tool, stored behind the tether door, helps tuck the pad back in.
Source: Maxi-Cosi Sela All-in-One Convertible Car Seat user guide (PDF)
No campaign in the current NHTSA child-restraint data names this model family, and I have not run a separate review for it. Check your seat’s model number and date of manufacture before use.
Rear-facing 5 to 40 lb and 19 to 40 inches, forward-facing 30 to 65 lb and 34.4 to 49 inches, and belt-positioning booster 40 to 100 lb and 43.4 to 52 inches.
Maxi-Cosi Sela All-in-One Convertible Car Seat (CC392) product page (opens in a new tab)
The manual says it is certified for aircraft use with the internal harness. It is not certified as a booster, because aircraft seats have no shoulder belts.
Maxi-Cosi Sela All-in-One Convertible Car Seat user guide (PDF) (opens in a new tab)
Up to 35 lb rear-facing and up to 40 lb forward-facing. Above those weights the manual requires a vehicle belt installation.
Maxi-Cosi Sela All-in-One Convertible Car Seat user guide (PDF) (opens in a new tab)
Maxi-Cosi says all fabrics are easy to remove, machine-washable and dryer-safe. The two cup holders are removable and dishwasher-safe.
Maxi-Cosi Sela All-in-One Convertible Car Seat (CC392) product page (opens in a new tab)
The manual says not to use it more than 10 years after the date of manufacture.
Maxi-Cosi Sela All-in-One Convertible Car Seat user guide (PDF) (opens in a new tab)
The Andi 360 has the same three modes and limits but swivels on its base in both rear- and forward-facing modes, to make loading easier. A connection cord keeps the seat and base together when installed.
Maxi-Cosi Andi 360 Rotating All-in-One Convertible Car Seat product page (opens in a new tab)
Answers refer to the model and manual version on this page. Check the instructions supplied with your seat.
| Model | Top child weight | Seat weight | Width | Usable life |
|---|---|---|---|---|
| Sela All-in-One Convertible Car Seat (this seat) | 100 lb | 27.25 lb | — | 10 years |
| Kani 4-in-1 Convertible Car Seat | 100 lb | 23.2 lb | — | 10 years |
| Pria Max+ All-in-One Convertible Car Seat | 100 lb | 16.5 lb | — | 10 years |
| Pria Max All-in-One Convertible Car Seat | 100 lb | 16.8 lb | — | 10 years |
| Pria All-in-One Convertible Car Seat | 100 lb | 16.5 lb | — | 10 years |
| Petra All-in-One Convertible Car Seat | 100 lb | 14.75 lb | — | 10 years |
| Romi 2-in-1 Convertible Car Seat | 50 lb | 9.2 lb | — | 10 years |
Other all-in-one seats whose published weight and height limits overlap the Sela All-in-One Convertible Car Seat.
| Mode | Weight | Height |
|---|---|---|
| Rear-facing harness | 5–40 lb | 19–40 in |
| Forward-facing harness | 30–65 lb | 34.4–49 in |
| Belt-positioning booster (high-back) | 40–100 lb | 43.4–52 in |
| Backless booster | 40–100 lb | 43.4–57 in |
$379.99Caspian Caviar · Amazon price as of 2026-11-02 05:04 UTC, subject to change
| Mode | Weight | Height |
|---|---|---|
| Rear-facing harness | 5–40 lb | 19–40 in |
| Forward-facing harness | 30–65 lb | 34.4–49 in |
| Belt-positioning booster (high-back) | 40–100 lb | 43.4–52 in |
$229.99Sea Shadow · Amazon price as of 2026-11-02 05:04 UTC, subject to change
| Mode | Weight | Height |
|---|---|---|
| Rear-facing harness | 5–40 lb | 19–40 in |
| Forward-facing harness | 30–65 lb | 34.4–49 in |
| Belt-positioning booster (high-back) | 40–100 lb | 43.4–52 in |
$269.99Sea Shadow · Amazon price as of 2026-11-02 05:04 UTC, subject to change
| Mode | Weight | Height |
|---|---|---|
| Rear-facing harness | 5–40 lb | 19–40 in |
| Forward-facing harness | 30–65 lb | 34.4–49 in |
| Belt-positioning booster (high-back) | 40–100 lb | 43.4–52 in |
$329.99Esgargot · Amazon price as of 2026-11-02 05:04 UTC, subject to change
