oxygen data. Let you know your health condition at any time and anywhere.. [Sleep Monitor] Automatically record your sleep duration to analyze your sleep quality. Help you adjust your rest time for a better sleep quality.[Multiple Workout Modes] Support 7 kinds of sports modes, such as running, cycling, basketball and so on, meeting your different exercise needs.[Smart Reminder] Provide synchronous display of message, call or social APP to remind you of important information.[Multi-Language Supported] 15 kinds of languages are supported to meet different language users' needs.[IP67 Waterproof] Can be worn while washing hand or in rain, easily adapting to various environment.[More Functions] Step, Distance, Calories, Music control, Remote camera, Weather, Timer, Alarm clock, Flashlight, Brightness adjustment, No disturb, etc.Parameters:Screen: 1.4 inches full-touch screen Resolution: 240*240 pixBT: 4.2Compatibility: Android 4.4 and above or iOS 8.0 and aboveBattery Type: Lithium Polymer BatteryBattery Capacity: 170mAhCharging Time: about 2HWorking Time: 5-7 daysStandby Time: 20 daysApp: Da FitLanguage: English / Simplified Chinese / Japanese / Korean / German / French / Spanish / Arabic / Russian / Traditional Chinese / Ukrainian / Italian / Portuguese / Indonesian / ThaiSpecifications:Brand: COLMI Model: Land2SCase Material: Zinc Alloy + PCStrap Material: Silicone / LeatherColor: Black / Silver (Optional)Water-Resistant Level: IP67Dial Size: 40*53mmDial Thickness: 9.9mmItem Weight: 52g / 1.83ozPackage Size: 15.7*6.9*2.6cm / 6.18*2.72*1.02inPackage Weight: 97g / 3.42ozPackage List:1 * Smart Bracelet1 * Charging Dock1 * User Manual