50 meter waterproof: Waterproof grade 5ATM (equivalent to a depth of 50 meters underwater). Supports wearing it during swimming in pools, shallow shoals, and other shallow water activities, but is not suitable for hot showers, saunas, and deep diving. It is necessary to avoid direct impact of high-speed water flow during water activities: waterproof function is not permanently effective and may weaken over time.
Typical mode test conditions: After fully charged, use the factory default settings, use a static dial, turn off high-precision sleep monitoring, sleep breathing quality monitoring, and all-day pressure detection. Enable 30 minutes/round of heart rate detection; Enable message notifications (100 messages per day, 10 incoming calls, 3 alarms); Pick up your wrist and light up the screen 200 times a day; Start the app to synchronize data once a day; Manually measure blood oxygen twice a day; Turn on exercise records for 60 minutes per week.
AOD Mode Test Conditions: After fully charged, use the factory default settings, use a static dial, AOD breath screen display intelligent on, turn off high-precision sleep monitoring, sleep breathing quality monitoring, and all-day pressure detection. Enable 30 minutes/round of heart rate detection; Enable message notifications (100 messages per day, 10 incoming calls, 3 alarms); Start the app to synchronize data once a day; Manually measure blood oxygen twice a day; Turn on exercise records for 60 minutes per week.
UPC/EAN: 
