Color Screen Wristband IP67 Blood Pressure O2 Long Standby Fitness Smart WatchThe product is shipped based on the color or size of the main image of the product page.Specification Bluetooth VersionoBT 4.0 or above ompatible OSoAndroid 4.4 or above , iOS 8.0 or above Operating ModeoTouch Key App LanguageoEnglish, Portuguese, Spanish, German, French, Russian, Turkish, Polish, Finnish, Dutch, Croatian, Japanese, Korean, Thai, Indonesian, Malay, Arabic, Traditional Chinese Technical Parameters SensoroG-sensor, Heart Rate Sensor Screen Size: 0.96inch Type: TFT Resolution: 80*160pixels Battery Battery Capacity: 90mAh Standby Time: About 30 days Using time: About 5-7 days Charging Time: About 2 hours Charging Type: charging clamp Appearance & Details Band Material: Silicone Length: 260mm Width: 19mm (free change strap without any tools) Weight and Size Product size: 260*19*11mm Product weight: 50g 1*Smart Bracelet 1*Charging Clamp 1*User Manual (English Version)