Brand new, unopened. Color: Black App: V-Band Functions: Bluetooth calling, SIRI voice control, Sleep mode, Lock function, Hydration reminder, Widget function, SOS call notification, Surface temperature measurement, Blood oxygen measurement, Analog clock display, Waterproof, Alarm, Phone call notification, SNS notifications, Music control, Find my phone, Weather, Temperature, Camera remote control, Step count, Training, Distance, Calories, Heart rate, Sleep tracking, Sedentary reminder, Brightness adjustment, Vibration mode Specifications: ● Charging method: Align the metal contacts on the back with the contacts of the included charger. Standby time: approximately 5 days. Charging time: approximately 2 hours. Screen size: 1.69 inches. Weight: 53g. ● Touch panel. IP67 waterproof. Compatible OS: Android 4.4, iOS 8.0 and later.