SeatFitFindercar seats, by spec

Britax Marathon ClickTight vs Evenflo Revolve360 Slim

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.

SpecBritax Marathon ClickTightEvenflo Revolve360 Slim
StageConvertibleConvertible
Narrow (3-across)
Extended rear-facing
FAA-approved
Lightweight / travel

How they differ

Published limits

ModeBritax Marathon ClickTightEvenflo Revolve360 Slim
Rear-facing5–40 lb4–50 lb · 17–48 in
Forward-facing harness22–65 lb22–65 lb · 28–49 in
Useful life10 yrs from manufacture

Britax Marathon ClickTight: Rear-facing: 5–40 lb and 49″ or less. Forward-facing: 22–65 lb and 49″ or less (printed limits, same height cap both modes).

Evenflo Revolve360 Slim: Evenflo prints a height range (min–max). Useful life is set by the expiration date on the label (no printed number of years).

Printed verbatim in the manufacturer's manual (Britax Marathon ClickTight User Guide (Canada, P03810500B) · Evenflo Revolve360 Slim Owner's Manual); “—” = 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

Britax — 22 on NHTSA's record · Evenflo — 43 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

Check the Britax Marathon ClickTight price on Amazon →

Check the Evenflo Revolve360 Slim price on Amazon →

🚗 Need it before the due date or a trip? Amazon Prime's free 30-day trial includes free fast delivery and free returns — useful when a seat may not fit your car. Start the free 30-day trial →

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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 Britax Marathon ClickTight and the Evenflo Revolve360 Slim?
The Britax Marathon ClickTight is FAA-approved for aircraft; the Evenflo Revolve360 Slim is extended rear-facing. Both are convertible car seats.

Is the Britax Marathon ClickTight or the Evenflo Revolve360 Slim FAA-approved for flying?
The Britax Marathon ClickTight is FAA-approved for aircraft; the Evenflo Revolve360 Slim is not. (Harnessed seats can be FAA-approved; booster seats never are, because a plane has no shoulder belt.)

Which is right for my car and child, the Britax Marathon ClickTight or the Evenflo Revolve360 Slim?
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: Cosco Scenera NEXT vs Evenflo Revolve360 Slim · Evenflo Tribute LX vs Evenflo Revolve360 Slim · Graco Extend2Fit vs Cosco Scenera NEXT · Graco Extend2Fit vs Evenflo Tribute LX · all convertible seats · all comparisons