Smart watch GT4 PRO with Bluetooth calling function fitness tracking watch with sleep monitoring function, suitable for iPhone/Android, IP68 waterproof

High definition Bluetooth fairy tale, rest screen pointer, cover hand off screen, customized picture, APP background download picture, two-dimensional code (download, connect two in one), find mobile phone, calendar, movement track, restart, message push, remote photography, Alipay, sleep monitoring, blood sugar, altitude, temperature monitoring, weather, blood pressure, voice assistant, my two-dimensional code, key definition settings, blood oxygen, breathing, dial, step counting, timer Menu style, factory reset, settings (Lingdong Island, drainage, power saving mode, siren alarm sound, screen off time, wrist up and on, NFC, brightness, key definition, vibration intensity, don't disturb mode, password setting, language, time and date setting, connecting to APP, factory reset, restart, shutdown, about), phone (contact person, call record, dialing keyboard, call settings, emergency call), calculator, heart rate Language selection, watch information, alarm clock, sports mode, Bluetooth music, Bluetooth call, stopwatch, screen out time, vibration intensity, time and date settings, password lock