The Amazfit GTS 2 mini adopts a new design concept. Thanks to the four-curved corners of the 2.5D glass cover, the product has no obvious border on the front, bringing a “borderless” visual experience.2. The weight of the surface body was measured in lab conditions. The actual weight may be slightly different.3. Always-on Display: When the screen is illuminated, it displays system content. When the screen is in standby mode, it displays the time. This function requires users to manually set “Always-on Display”. The user can switch this feature on or off through the watch.4. Sleep monitoring: can record evening sleep and naps during daytime. When it detects that the wearer is asleep between midnight and 6am, the sleep time between 6pm of the previous day and 11am can be recorded as night sleep time; sleep between lasting more than 20 minutes is recorded as a nap. Sleep lasting less than 20 minutes is not recorded. 5. This product is not a medical device. The test data and results are for reference only and cannot be used to diagnose or monitor any medical condition. In addition, the accuracy of the data will be affected by tattoos or other pigments on the skin, darker skin tones, hair, movement and sweat from sports, etc.6. The rapid eye movement period, also known as REM, is the basis for the normal biological rhythm and life-sustaining of mammals. It accounts for about 20%-25% of the entire night’s sleep cycle. It is characterized by rapid eye movement, low-amplitude mixed-frequency EEG activity, and muscle tension relaxation.