Does my phone need to be nearby when I'm exercising to record heart rate data?

No, your phone doesn’t need to be nearby during your workout as long as your wearable has its own heart rate sensor. Devices like the Apple Watch or Wear OS watches running the Cardiogram app will continue collecting heart rate data even when your phone isn't with you.

Once your watch reconnects with your phone, the data will sync to the Cardiogram app. This can sometimes take a few minutes, especially for workouts or longer sessions.

If your workout doesn’t appear after some time, just email us at [email protected], and we’ll take a look.