Chicco NextFit Max vs Graco SlimFit3 LX

Both are convertible car seats — here are their published manufacturer specs side by side.

This compares published manufacturer specs — not safety or fit advice. The seat's manual, your vehicle's manual, NHTSA's tools and a certified CPST are the fit-and-safety authority; always check them before installing.

Spec	Chicco NextFit Max	Graco SlimFit3 LX
Stage	Convertible	Convertible
Narrow (3-across)	–	✓
Extended rear-facing	✓	–
FAA-approved	✓	✓
Lightweight / travel	–	–

Chicco NextFit Max

4–65 lb

See price on Amazon

Graco SlimFit3 LX

5–100 lb

See price on Amazon

As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Weight ranges are the manufacturer's published limits across all modes.

How they differ

the Graco SlimFit3 LX is listed narrow (roughly ≤17″) for fitting three across a back seat; the Chicco NextFit Max isn't listed narrow
the Chicco NextFit Max lists extended rear-facing (a higher rear-facing weight limit, ~40-50 lb); the Graco SlimFit3 LX doesn't

Published limits

Mode	Chicco NextFit Max	Graco SlimFit3 LX
Rear-facing	4–50 lb	5–40 lb
Forward-facing harness	22–65 lb	22–65 lb
Booster (with back)	—	40–100 lb · 43–57 in · 4+ yrs
Useful life	8 yrs from manufacture	10 yrs from manufacture

Graco SlimFit3 LX: Graco's manual sets rear- and forward-facing height by fit (head at least 1″ below the headrest adjustment handle), not a printed inch limit.

Printed verbatim in the manufacturer's manual (Chicco NextFit Max (07/2020) · NWL0001077519C); “—” = not published for that mode, “not yet sourced” = we haven't read that manual yet, not that the seat has no limit. How we source these →

Recall record

Chicco — 2 on NHTSA's record · Graco — 17 on NHTSA's record.

That is the record of the brand — not a verdict on these models. A recall names specific models and manufacture-date ranges, and a seat missing from the record is not "recall-free": check nhtsa.gov/recalls with the model and date of manufacture on your seat's label. Source: NHTSA, retrieved 2026-09-05.

Where to buy

Chicco NextFit Max

See price on Amazon

Graco SlimFit3 LX

See price on Amazon

Need it before the due date or a trip? Amazon Prime includes fast delivery on eligible items, and eligible new members may be offered a free trial. Delivery speed and return terms vary by item, so check the listing in case a seat may not fit your car. See if you can try Prime free →

Affiliate link — we may earn a commission on qualifying sign-ups, at no extra cost to you. Current terms are on Amazon's page.

As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Affiliate links never affect our specs or which seats we compare.

FAQ

What's the difference between the Chicco NextFit Max and the Graco SlimFit3 LX?
The Chicco NextFit Max is extended rear-facing, FAA-approved for aircraft; the Graco SlimFit3 LX is narrow for 3-across, FAA-approved for aircraft. Both are convertible car seats.

Which fits three across, the Chicco NextFit Max or the Graco SlimFit3 LX?
The Graco SlimFit3 LX is listed narrow (~≤17″) for 3-across; the Chicco NextFit Max isn't. Three-across fit still depends on your exact vehicle — confirm before buying.

Which is right for my car and child, the Chicco NextFit Max or the Graco SlimFit3 LX?
That depends on your specific vehicle and child — this page compares published manufacturer specs only, not fit or safety. Check the seat manual, your vehicle manual, NHTSA's car-seat finder and ideally a certified CPST before deciding.

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

More convertible comparisons: Chicco NextFit Max vs Diono Radian 3R · Britax Marathon ClickTight vs Clek Fllo · Britax Marathon ClickTight vs Diono Radian 3QXT · Britax Marathon ClickTight vs Diono Radian 3RXT · all convertible seats · all comparisons