AARU Smart Fitness Tracker Band M4 with Heart Rate Monitoring,Skype Smart Band Strap  (Black)

Screen display band ?0.96 TFT? Time?step, distance and calorie display on the screen Standard function (step, distance, calories) Sleep monitoring (sleep time, sleep quality? Incoming remind, Message push Anti-lost remind (phones beyond the scope will remind) Alarm clock remind Task remind Activities remind Moving target setting Moving information sharing SUOTA function? through the APK/APP upgrade bracelet firmware APP in google play and app store Synchronous data to mobile applications Android and apple application in sync Specifications System requirements?Android 4.4 and above, IOS 8.0 and above, bluetooth 4.0 support Bluetooth version?BLE 4.0 Bluetooth chip?TLSR8266F512ET32 Battery capacity?90mah Standby time? About 10 days?standby time will be subject to the actual measurement? Working time?About a week?standby time will be subject to the actual measurement? Motor?Vibration remind Charging interface?USB charging Waterproof level?Ip67 GSensor?SC7A20 antennas?Fpc antenna