•1.28" TFT high-definition color screen with outstanding atmosphere •Rotating crown, fast direct access to target features •Bluetooth calling, one-touch dialing with HD sound quality •Music playback, rocking bass with intelligent control •Smart split screen, quicker transfers to frequently used functions •IP67 waterproof to meet daily needs •Combination locks, high strength encryption to protect easy drop-down access privacy •Shortcut functions, easy drop-down access Specifications: Product parameters Model i39 Product Dimension 260*46*10.5mm (Total length + case diameter + thickness) Net weight 55g Bluetooth version 5.0 BLE Calling Bluetooth version 3.0 BLE Waterproof level IP67 Chipset HS6621+128M flash, Music IC: ZhongKe Acceleration sensor SC7A20 Optical SC7R30, 128KB+1M, Optical Heart Rate Sensor Module Display screen Type: 1.28 inch round colorful display Touch screen: Full touch control Resolution: 240*240px Battery Type: Polymer lithium battery Battery capacity: 260 mAh Charging time: about 60 minutes Working time: about 15 days Standby time: about 30 days Strap Material Leather Working temperature -20°C ~ 50°C Vibration motor Support Heart rate chip Support Motor Built-in, vibration reminder Product Features The main function Receive/Reject phone calls/ Dial phone call MP3 Player Heart rate monitoring Blood/Blood oxygen pressure monitoring Sleep monitoring Sedentary reminder Sports pedometer/calorie consumption/track record/exercise time Call reminder and display Message is pushed and displayed Remote control camera Automatically heart rate measurement Multi-Sport measurement Clock reminder Alarm reminder Dial 5 kinds of dials default. APP customized watch faces are optional APP support language English, Japanese, Korean, German, Spanish, French, Italian, Russian, Portuguese, Arabic, Chinese, UI Support language English, Chinese, Spanish, French, Russian, Portuguese, Polish, etc total 23 languages Messages push up support language English, Chinese, Spanish, French, Russian, Portuguese, Polish, etc total 23 languages Support phone system For IOS 8.0 & above, For Android 5.0 & above Package included: •1 x Smart Watch •1 x Charging Cable •1 x English and Chinese Manual •Other items not included