Ring, strap or watch?

How the trackers on our list differ, and what each costs you after the box.

By The Editors. October 6, 2026.

Every tracker here measures sleep and heart rate. The real differences are form, screens and memberships.

Rings

Oura Ring 5 launched in May 2026 and comes with a paid membership for the full insights.

WHOOP has no screen at all, and you buy it as a membership with the hardware included.

Withings' ScanWatch 2 looks like an analog watch, with a small display for the data.

A $399 titanium smart ring that tracks sleep, heart rate and recovery from your finger.

Best for overnight sleep tracking

A screen-free fitness strap sold as a membership, from $199 a year for the One tier with the WHOOP 5.0 strap included.

Best for athletes planning training

A hybrid smartwatch with analog hands, a small display and up to 35 days of battery, per Withings.

Best for analog watch wearers

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