Lots of appealing features have been integrated into this product such as heart rate monitoring, blood pressure monitoring, blood oxygen monitoring, health monitoring, multiple sports modes, sports recording, sleep monitoring, call and message notifications, bluetooth-compatible call, music function, custom dialing, online multiple dialing, etc. It is a super choice to buy the product because it can pay attention to your heart rate, blood pressure, etc. Thus you can monitor your health conditions and look after yourself well. This watch is made of silicone, tempered glass and zinc alloy material. These materials are durable and environmentally friendly. The length of the product is 25cm, the width is 3.8cm, the height is 1cm. Our product is very suitable for sports, fitness, business, outdoor, and so on. And it is suitable for Android 4.4 and above, for iOS 9.0 and above. Item Name: Smart Watch Material: Silicone,Zinc Alloy,Tempered Glass Bluetooth Version: 5.0 Compatible Operating System: for Android 4.4 and above, for iOS 9.0 and above Battery: Built-in 210mAh Rechargeable Battery(Included) CPU Chip: for Realtek 8762C Audio Chip: BK3266 Display: 1.7 Inches High-definition Full Touch Screen Heart Rate: HRS3300 Waterproof Grade: IP67 Sensor: 3D Acceleration ROHMS APP Languages: English, Arabics, Danish, German, Spanish, Finnish, French, Italian, Japanese, Korean, Dutch, Norwegian, Polish, Portuguese, Russian, Swedish, Thai, Ukrainian , Chinese, Traditional Chinese Firmware Languages: Chinese, Traditional Chinese, English, German, Korean, Spanish, Japanese, French, Russian, Arabics, Ukrainian, Italian, Portuguese APP Name: Da Fit Features: Portable, Rechargeable, Multifunctional Size Details: 25cm x 3.8cm x 1cm/9.84" x 1.5" x 0.39" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Smart Watch 1 x Charging Cable 1 x User Manual