SeatFitFindercar seats, by spec

Every car seat, by spec

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69 seats from 16 brands — compared on the specs that drive the shortlist.

Fit is decided by your seat manual + your vehicle manual. This page lists published specs to help you shortlist — it is not installation or safety advice, and it does not confirm a seat fits a specific car. Confirm install with the manuals, NHTSA, or a free certified car-seat technician (CPST) check.

Last verified 2026-06-11

Car seatStageNarrow (3-across)Ext. rear-facingFAALightweightBuy
Chicco KeyFit 35Infant4–35 lbInfant✓–✓✓See price
on Amazon
Graco SnugRide SnugFit 35Infant4–35 lbInfant––✓✓See price
on Amazon
Nuna PIPA RXInfant4–30 lbInfant––✓✓See price
on Amazon
UPPAbaby MESA V2Infant4–35 lbInfant––✓✓See price
on Amazon
Maxi-Cosi Mico LuxeInfant4–30 lbNHTSA notice 2023Infant––✓✓See price
on Amazon
Cybex Aton GInfant4–35 lbNHTSA notice 2025Infant––✓✓See price
on Amazon
Graco Extend2FitConvertible4–65 lbNHTSA notice 2016Convertible–✓✓–See price
on Amazon
Chicco NextFit MaxConvertible4–65 lbConvertible–✓✓–See price
on Amazon
Britax Marathon ClickTightConvertible5–65 lbNHTSA notice 2015Convertible––✓–See price
on Amazon
Britax Boulevard ClickTightConvertible5–65 lbNHTSA notice 2015Convertible––✓–See price
on Amazon
Nuna RAVAConvertible5–65 lbNHTSA notice 2024Convertible–✓✓–See price
on Amazon
Clek FoonfConvertible14–65 lbNHTSA notice 2021Convertible✓✓––See price
on Amazon
Clek FlloConvertible14–65 lbNHTSA notice 2021Convertible✓✓✓–See price
on Amazon
Diono Radian 3QXTConvertible4–120 lbConvertible✓✓✓–See price
on Amazon
Diono Radian 3RXTConvertible5–120 lbConvertible✓✓✓–See price
on Amazon
Cosco Scenera NEXTConvertible5–40 lbConvertible✓–✓✓See price
on Amazon
WAYB PicoConvertible26.5–50 lbNHTSA notice 2019Convertible✓–✓✓See price
on Amazon
Evenflo Tribute LXConvertible5–40 lbConvertible✓–✓✓See price
on Amazon
Graco 4Ever DLX 4-in-1All-in-one4–120 lbAll-in-one–✓✓–See price
on Amazon
Britax One4Life ClickTightAll-in-one5–120 lbAll-in-one–✓✓–See price
on Amazon
Graco TriRide 3-in-1All-in-one5–100 lbAll-in-one–✓✓–See price
on Amazon
Chicco Fit4 4-in-1All-in-one4–100 lbAll-in-one–✓✓–See price
on Amazon
Evenflo EveryStage DLXAll-in-one4–120 lbAll-in-one–✓✓–See price
on Amazon
Graco TurboBooster 2.0Booster40–100 lbBooster–––✓See price
on Amazon
Chicco KidFit ClearTex PlusBooster40–110 lbBooster–––✓See price
on Amazon
Clek OobrBooster40–100 lbBooster✓–––See price
on Amazon
mifold Grab-and-GoBooster40–100 lbBooster✓––✓See price
on Amazon
Graco RightGuide PortableBooster50–120 lbBooster✓––✓See price
on Amazon
Chicco KeyFit 30Infant4–30 lbNHTSA notice 2008Infant✓–✓✓See price
on Amazon
Graco SnugRide 35 Lite LXInfant4–35 lbInfant––✓✓See price
on Amazon
Britax B-Safe Gen2Infant4–35 lbInfant––✓✓See price
on Amazon
Nuna PIPA Lite RXInfant4–32 lbInfant––✓✓See price
on Amazon
Cybex Aton 2Infant4–35 lbNHTSA notice 2023Infant✓–✓✓See price
on Amazon
Maxi-Cosi Coral XPInfant4–22 lbNHTSA notice 2023Infant––✓✓See price
on Amazon
Doona Infant Car Seat & StrollerInfant4–35 lbInfant––✓–See price
on Amazon
Clek LiingInfant4–30 lbNHTSA notice 2021Infant✓–✓✓See price
on Amazon
Evenflo LiteMax 35Infant4–35 lbInfant––✓✓See price
on Amazon
Graco Contender SlimConvertible5–65 lbConvertible✓–✓–See price
on Amazon
Graco SlimFit3 LXConvertible5–100 lbConvertible✓–✓–See price
on Amazon
Britax Advocate ClickTightConvertible5–65 lbNHTSA notice 2015Convertible––✓–See price
on Amazon
Britax AllegianceConvertible5–65 lbConvertible––✓–See price
on Amazon
Maxi-Cosi Pria MaxConvertible4–100 lbConvertible––✓–See price
on Amazon
Chicco OneFit ClearTexConvertible5–100 lbConvertible––✓–See price
on Amazon
Evenflo Revolve360 SlimConvertible4–65 lbNHTSA notice 2025Convertible–✓––See price
on Amazon
Safety 1st Grow and Go SprintConvertible5–100 lbConvertible––✓–See price
on Amazon
Graco Grows4Me 4-in-1All-in-one5–110 lbAll-in-one–✓✓–See price
on Amazon
Safety 1st Grow and Go All-in-OneAll-in-one5–100 lbAll-in-one–✓✓–See price
on Amazon
Evenflo Revolve360 ExtendAll-in-one4–120 lbAll-in-one–✓––See price
on Amazon
Maxi-Cosi Magellan LiftFitAll-in-one5–100 lbAll-in-one–✓✓–See price
on Amazon
Graco TurboBooster LXBooster30–110 lbBooster–––✓See price
on Amazon
Evenflo Big KidBooster40–110 lbNHTSA notice 2012Booster–––✓See price
on Amazon
Diono Monterey 4DXTBooster40–120 lbBooster✓–––See price
on Amazon
Nuna AACEBooster40–120 lbBooster––––See price
on Amazon
Clek OzziBooster40–120 lbNHTSA notice 2022Booster✓––✓See price
on Amazon
Chicco GoFit PlusBooster40–110 lbBooster–––✓See price
on Amazon
UPPAbaby MESA MaxInfant4–35 lbInfant––✓✓See price
on Amazon
Chicco Fit2Infant4–35 lbInfant––✓✓See price
on Amazon
Peg Perego Primo Viaggio 4-35 NidoInfant4–35 lbInfant––✓✓See price
on Amazon
Cybex Cloud G LuxInfant4–35 lbInfant––✓✓See price
on Amazon
Chicco NextFit ZipConvertible5–65 lbConvertible–✓✓–See price
on Amazon
Diono Radian 3RConvertible5–120 lbConvertible✓–✓–See price
on Amazon
Graco Sequel 65Convertible4–65 lbConvertible–✓✓–See price
on Amazon
Cybex Eternis SConvertible4–120 lbConvertible–✓✓–See price
on Amazon
Nuna EXECAll-in-one5–120 lbAll-in-one–✓✓–See price
on Amazon
Evenflo Symphony DLXAll-in-one5–110 lbAll-in-one–✓✓–See price
on Amazon
Graco Affix HighbackBooster30–100 lbBooster––––See price
on Amazon
Britax HighpointBooster40–120 lbBooster––––See price
on Amazon
Diono Solana 2Booster40–120 lbBooster✓––✓See price
on Amazon
Cosco TopsideBooster40–100 lbBooster–––✓See price
on Amazon

Also check: the NHTSA recall record by brand · when each brand's seats expire · your state's car seat law · how to check fit →

Citing these specs? Go ahead — published manufacturer data, last verified 2026-06-11. Copy a ready-made reference: