D18 Color Screen Smart Bracelet Heart Rate Blood Pressure Monitor Fitness Tracker Waterproof Sport Pedometer Step Calorie Counter Smartband Wristband Watch.Compatiblity phone versionIOS8.0 and Android 4.4 above APP language Chinese,English,Spanish,French,Dutch,Portuguess,German,Russian,Turkish,Japanese,Persian,Arabic,Malaysia,Thai. Standby time: 15 days or so Working hours: 5-7 daysSize404012mmMaterialTP PlasticdistanceSupport CPULD719-V1.0 caloriesSupport buttonone point touch heart rateSupport BT version4.0 blood pressureSupport blood oxygenSupport message notification QQ,facebook,whatsapp,twitter,Skype,instagram,wechat Screen:1.3" color screen sedentorySupport Displayresolution 240*240alarmSupport Type Oled stopwatchSupport sleep monitoring:Support Battery Capacity:100mAh find phone:Support find watch:Support Motion gesture:SupportPackage include:1 pc smart bracelet 1 pc manualNote: This item doesn't need a charging cable, just put USB interface into Charging Head to charge.