SeatFitFindercar seats, by spec

Diono Radian 3R vs Graco Sequel 65

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.

SpecDiono Radian 3RGraco Sequel 65
StageConvertibleConvertible
Narrow (3-across)
Extended rear-facing
FAA-approved
Lightweight / travel

How they differ

Where to buy

Check the Diono Radian 3R price on Amazon →

Check the Graco Sequel 65 price on Amazon →

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FAQ

What's the difference between the Diono Radian 3R and the Graco Sequel 65?
The Diono Radian 3R is narrow for 3-across, FAA-approved for aircraft; the Graco Sequel 65 is extended rear-facing, FAA-approved for aircraft. Both are convertible car seats.

Which fits three across, the Diono Radian 3R or the Graco Sequel 65?
The Diono Radian 3R is listed narrow (~≤17″) for 3-across; the Graco Sequel 65 isn't. Three-across fit still depends on your exact vehicle — confirm before buying.

Which is right for my car and child, the Diono Radian 3R or the Graco Sequel 65?
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.

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