Live heart rate
Note: this part of the app comes with a licence. The free edition covers injections.
The app can read your heart rate live while you train, from any watch, band or chest strap that shares heart rate over Bluetooth.
Connecting
- Go to Health → Live heart rate and tap Connect.
- Allow Nearby devices (and Location on older Android versions).
- Pick your band from the list.
The reading updates every second or two. A small pulse shows each new reading, and "updated Xs ago" tells you if it has gone quiet.
Turn on heart rate sharing
Many watches and bands only send heart rate over Bluetooth when sharing is on. Look in the watch's settings or its app for a setting usually called Broadcast heart rate or Share heart rate. Some only share while that screen or an activity is open; others have an always option. Without it, the app connects but no readings arrive. Devices that only broadcast over ANT+ can't connect to a phone this way.
Connected but stuck on one number
The band isn't reading your pulse. Wear it a finger's width above the wrist bone, snug but comfortable, and make sure the sensor touches skin. Tap Details to see whether the band reports skin contact.
Details and Reconnect
Details shows what the band is sending: connection state, skin contact and the last few readings. It's the fastest way to see what's wrong. Reconnect starts the connection again.