Fitness tracker What do you most care about now?

Basic functions: motion monitoring, sleep monitoring, vibration warning, heart rate monitoring.   Usage required for specific aspects:   (1)Message push, call reminder, call rejection, oxygen saturation monitoring.   (2)GPS location, voice call, voice assistant NFC and mobile payment, decorative, somatosensory interaction.   (3)Continue: 3-30 days, Super long and fast charging.   (4)Waterproofing: IP65-IP68 class waterproofing.…