Product Parameters: 1.Model: HK8 Pro 2.Dimensions: 44.8*44.8*11mm 3.Screen: AMOLED 4.Screen size: 1.36'' 5.Resolution: 390*390 6.Chip: RealTek8762DT 7.Heart Sensor: SC7R31 8.RAM+ROM: 192KB+256KB 9.BT: 5.0 10.Battery Capacity: 300mAh 11.Charging Way: magnetic charging 12.Charging Time: roughly 2 hours 13.Battery Life: 5-7 days 14.Standby Time: 30 days 15.Waterproof: IP68 16.System requirements: Android 4.4 and above / iOS 9.0 and above APP: FitCloudPro Features: 1.Keep an eye on your health: Heart rate/blood oxygen/blood pressure monitor, sleep tracker, sedentary reminder, period tracker. 2. A good helper for workout: Steps, distance, calories burned, sport modes. 3. A good helper for daily life: NFC access control, BT phone calls, sync notifications, voice assistant, lock screen password, custom faces, weather, music control, etc. Languages: App languages:English, Ukrainian, Russian, Croatian, Hungarian, Turkish, Greek, German, Italian, Czech, Slovak, Japanese, French, Polish, Persian, Thai, Swedish, Finnish, Dutch, Portuguese, Spanish, Albanian, Arabic, Korean. UI languages:English, German, Russian, Portuguese, Spanish, French, Japanese, Arabic, Dutch, Italian, Czech, Greek, Hebrew, Indonesian, Korean, Malay, Polish, Thai, Vietnamese, Finnish, Romanian, Turkish, Croatian. Note: 1.The principle of smartwatch measurement is completely different from that of medical equipment. It is only for sports and fitness reference, thank you. 2.After receiving the watch, please use the 5V 1A charging adapter to charge the watch for more than 2 hours. 3.Please scan the QR code in the manual to download the APP before use 4. Please contact us to view more details and actual photos before purchasing. 5. We support wholesale & dropshipping, please contact us directly for more details, thanks. 6.This watch is IP68 waterproof, please do not suggest put in water for long time and do not wear to bath, swim, shower. Reminder of NFC function: 1. The NFC of this watch only supports as IC door cards with a frequency of 13.56MNZ (applicable to 80% on the market), does not support other functions. 2. The mobile phone that supports NFC function can directly read the unencrypted door card and then write it to the watch. 3. The fingerprint lock enters the administrator mode-add-card-write. 4. Encrypted access control of the community needs to be written in the community property management office. Package List: smart watch*1 strap*2 charging cable*1 user manual*1