Heart Rate
Continue swiping up on the watch face to enter the heart rate screen. After entering, the
watch automatically starts measuring your heart rate. During measurement, it's required to
properly wear the watch and keep the back of the watch fairly close to your skin until the
watch can measure a stable heart rate.
To enable the all-day heart rate measurement mode, open the Amazfit app and go to "Profile -
Amazfit T-REX - Heart rate detection", and choose to enable all-day heart rate measurement.
You can also choose other heart rate measurement modes and detection frequencies here.
