APP name: H Band Chiplow-power design GR5515 PPG sensor chip SFH2201 Audio chipsTYHX3220 Blood oxygen chipGH3220 RF analog front-end SFH2201 G-SensorRohm KXTJ3-1057 Battery Capacity280mAH Screen size:1.92inch 240 x 284 HD touch screen heart rate/blood pressureGreen light PPG Waterproofwaterproof ip68 BluetoothversionV5.1compatible Android 5.0 and IOS 9.0 above version Operation mode:Full touch screen button MaterialZinc Alloy case Abs StrapEnvironmental protection silicone strap / leather strap Charging mode: Magnetic suction charging line Watch size: 260 x 35 x 12MM Box Szie: 172 x 97 x 33 mm Gross weight: 188g Net weight: 52g Specifications: 1.Health MonitorSleep monitoring, heart rate, blood pressure, sitting reminders, drinking reminders, blood oxygen, blood sugar, 2.sports modesSports steps, sports mileage record, card road consumption, a variety of sports modes. Movement track (mobile APP display) 3.Standby time30 days standby, daily battery life of 4-7 days (the above data from the factory laboratory, may be different due to personal use environment, different processes) 4.Other functionsMute alarm clock, remote photo, music control, sedentary reminder, drink water reminder, weather display, wrist light screen, call reminder, SMS reminder, countdown, shake to take photos, mobile phone search, etc Wechat movement:Follow the public account, can share synchronization to WeChat campaign 5.App languageChinese (simplified and Traditional), Korean, Japanese, English, German, French, Italian, Spanish, Portuguese (Portuguese), Russian, Hungarian, Turkish, Indonesian, Polish, Czech, Greek, Swedish 6.Firmware languageAvailable in Russian, Hungarian, Turkish, German, Italian, Czech, Slovak, Japanese, French, Polish, Persian, simplified Chinese, traditional Chinese, English, Portuguese, Spanish, Vietnamese, Arabic, Korean Package Included: 1 x Watch 1 x Charging cable 1 x Instructions