Which devices work with Gyroscope?

Apple Watch, Oura Ring, Whoop, Garmin watches, Fitbit, Withings scales, Dexcom G7, Peloton and MyFitnessPal, plus anything that writes to Apple Health. Each device has its own setup page with exactly what it syncs and how.

How do I connect a device?

In the app, open your data sources, choose the device and sign in to its account when asked. Devices that talk only to Apple Health need their own app allowed to write to Apple Health first. The first sync can take a few minutes; history from before you connected arrives in the background.

How do I disconnect an integration?

Open the same data sources list, choose the device, and disconnect. Data already on your timeline stays; nothing new arrives from that device. To revoke access completely, also remove Gyroscope from the maker’s own app or account page, and for Apple Health turn the categories off under Data Access and Devices.

I wear two devices. Which one counts?

Pick a primary device in the app. Its numbers win whenever two sources overlap, and the other device fills in only what the primary does not have. A ring for sleep and a watch for workouts is a common pair: set the ring as primary for sleep and both are used where they are best.