K52 Bluetooth Call Smart Watch Ultra Long Standby Heart Rate Blood Oxygen Outdoor Three Defense Sports Smart Watch

1.39 inch IPS screen Detachable 22mm strap Standard  Multiple watch faces pushing,Customized watch faces Bluetooth calling/BT music(Superior clear audio like sound effect),Weather Heart rate detection/Blood pressure detection/Blood oxygen detection/Wole-day heart rate monitor Timer ,Pedometer,Calorie Consumption,Distance Calculation,Heart rate,Blood pressure,Blood oxygen,Sleep time /quality,On & Off dispaly，Multiple sport modes Sleep detection (Sleep time ,Sleep quality) Calls to remind,SMS Reminder,Third-party messaging reminder Multilingual push,Clock alarm,Remote Camera，Sedentary reminder English,Chinese,Japanese,German,French,Spanish,Arabic,Russian,Ukrainian,Russian,Portuguese 400mAh big battery,super long standby time,Bright screen under sunshine Synchronous data to APK/APP Download “FitCloudPro" from Android market,Google play or Apple store Scan the QR code and download  “FitCloudPro" Specifications Android system 4.4 version or above ;iOS system 8.0 version or above ;Support  bluetooth with 5.0 version; BLE 5.0 Realtek8763EW Flash128MB 360*360 3605  0916 400mAh About 30days 5-10days Built in, vibratng reminder