1.85" IPS full round display: Inherit the classic round dial, return to the original design, classic traditional key, interaction design integration, every detail beautiful and practical, colorful, stylish and cool operation agile, view the data more convenient Powerful flashlight: The watch has built-in flashlight function, so that you travel at night to illuminate the front, say goodbye to the dark Realtek 8773EWE chipset: With a new Ul interface design, it brings you a different new experience, easily handles all sports and health data to achieve lower power consumption, and greatly increases performance. The built-in large battery bids farewell to the inheritance of frequent charging Bluetooth Call Synchronous chat: Using high-fidelity AAC waterproof speaker, Bluetooth speakerphone to show high-definition original sound, whether it is sports or driving, mobile phone calls are pushed to the watch in time with one click to answer free hands and communicate freely Care about health: PPG biological tracking optical sensor can measure heart rate, blood oxygen, and sleep with one click to understand your physical condition at any time Health monitoring: The watch supports heart rate monitoring, blood pressure monitoring, blood oxygen saturation monitoring and sleep monitoring; protecting your health all day Specifications: Function 1.85 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 Flashlight, Timer, Flashlight, 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 730mAh big battery,super long standby time,Bright screen under sunshine Synchronous data to APK/APP APP/APK download method Download "FitCloudPro" from Android market,Google play or Apple store Scan the QR code and download "FitCloudPro" System requirements Android system 4.4 version or above; iOS system 8.0 version or above; Support Bluetooth with 5.0 version Bluetooth version BLE 5.0 Main control chip Realtek8773EWE-VP Memory Flash128MB Screen resolution 360*360 Heart rate 3918 Speaker 1306 Battery capacity 730mAh Standby time About 40 days Working time 7-10 days Motor Built in, vibratng reminder