1.46-inch retina HD large screen, low power consumption and high brightness IP67 waterproof to meet the needs of daily waterproof use, no fear of wind and rain, accompany you to go further Equipped with a small flashlight on the side, adding a practical function for your outdoor ...1.46-inch retina HD large screen, low power consumption and high brightness IP67 waterproof to meet the needs of daily waterproof use, no fear of wind and rain, accompany you to go further Equipped with a small flashlight on the side, adding a practical function for your outdoor adventure and helping you light the road in the wilderness With the compass, accurately measure and calibrate the degree and current time of the current heading direction ( East: E, South: S, West: W, North: N), so you don't get lost in outdoor adventures Whether it is indoor or outdoor, 100 + sports modes cooperate with professional sensors to comprehensively record sports data, scientific analysis, effectively improve sports level, and accompany you to fight in the wilderness Support Bluetooth-compatible calls, can answer, hang up, and call back through the call records of the watch, saving time and effort in communication Identify sleep status, monitor sleep quality throughout the process, and use sleep data to effectively help you improve healthy sleep quality and get a good night Specifications: Product number: HT17 Product name: Bluetooth-compatible smart bracelet Bluetooth-compatible: HT17 Product Introduction Project Description Product Size Φ47.8*13.5mm Case material Kirstie Strap specifications 22mm silicone strap (removable and replaceable) product weight 59g waterproof level IP67 Bluetooth-compatible distance 5--7 days (depending on the usage scenario) Endurance ≤2H Charging time Android 5.1 or IOS 8.2 or above supports Bluetooth-compatible 5.0BLE system With smartphone system Fit Cloud Pro APP name 24 languages (Simplified Chinese, Traditional Chinese, English, German, Russian, Spanish, Portuguese, French, Japanese - Arabic, Dutch, Italian, Czech, Greek, Hebrew, Indonesian, Malay, Polish, Thai - Vietnamese, Finnish, Romanian, Turkish, Croatian) APP language 24 languages (Simplified Chinese, Traditional Chinese, English, German, Russian, Spanish, Portuguese, French, Japanese - Arabic, Dutch, Italian, Czech, Greek, Hebrew, Indonesian, Malay, Polish, Thai - Vietnamese, Finnish, Romanian, Turkish, Croatian) hardware Configuration HW specification CPU Realtek8763EWE RAM 578KB ROM 640KB Plug-in Flash 128Mb heart rate chip HX3605 Accelerometer STK8321 terrestrial magnetism Sustain Bluetooth BLE5.0 Display 1.46" 360*360 IPS Display Physical button 2 (with encoder) Touch Full-screen touch Battery 450m - Ah polymer battery Charging mode USB magnetic charging Software Configuration Built-in dial Built-in 5 dials, supporting customized dials and downloading dials Basic function Data, sports, sports records, weather, information, women, music - Chat, QQ, Whats - App, Line, Facebook, Facebook Messenger, Kaokao,Twitter, Skype Firmware update Watch firmware can be upgraded in the air through the APP