System Requirements:android5.0+ / ios10.0+ Master chip:Hs6621 Bracelet memory:64M Bluetooth version:5.2 Screen display :1.75inch-square screen-320*385-TFT Battery capacity:200mAH Usage time: Pending interaction and notification settings / brightness etc About 5 days Button method:Full screen touch Charging port:Magnetic charging Basic function Dial market,Smart split screen display,Off screen time setting,3D dynamic dial, Scan code connection,Band language switch,Custom component,Pressure,Voice calls , Password lock screen,,Mett,Pedometer,Play music,Calories,Breath training,Distance , Hourly point measurement,Sport mode,Heart rate,Raise your hand to brighten the screen, Blood pressure,Sleep monitoring,Blood oxygen,Incoming call,Fatigue analysis, Message notification Calculator,Sedentary reminder,WeChat campaign,Alarm reminder, Custom watch face,Stopwatch Health Weekly,Find a bracelet Dimming,Dial switch UI language:Chinese, English, Arabic, French, German, Spanish, Portuguese, Russian, Thai, Polish, Italian, Japanese, Traditional, Czech, Turkish, Greek, Latin, Romanian, Vietnamese, Danish, Message push:Chinese, English, Arabic, French, German, Spanish, Portuguese, Russian, Thai, Polish, Italian, Japanese, Traditional, Czech, Turkish, Greek, Latin, Romanian, Vietnamese, Danish, APP Support language:"Simplified Chinese, Traditional Chinese, English, French, German, Japanese, Spanish, Italian, Korean, Russian, Thai, Czech,Portuguese, Indonesian, Arabic, Turkish, Greek, Estonian, Bulgarian, Latvian,Lithuanian, Romanian, Serbian, Slovak" Inventory 1*HW22 Smart Watch 1*Charger 1*Manual