Track sleep using your Amazfit GTS 3 on Notify App

The Notify app is a smartwatch application that detects when you fall asleep and wakes you up using your Amazfit GTS 3. It also tracks your sleep patterns and gives you statistics on how well your sleep was.
The app can be downloaded from the Google Play store for Android devices.
The Notify app is a simple way to track your sleep, export the data to Google Fit and spreadsheets. Notify App calculate also many different statistics to let you analyze your results and improve your sleep.
It is recommended that you wear the Amazfit GTS 3 on your non-dominant arm in order to get accurate readings. You can also choose to turn off any notifications that may disturb you while sleeping.

A screenshot of Notify App Sleep main screen