Smarteen watch with sports bezel and silicone strap. Compatible with Android 4.4 and iOS 8.0 or higher. Bluetooth BLE 5.0. RAM memory: SRAM M4. Rechargeable battery with magnetic cable. Battery life: 5 days in operation and 10 days on standby. Functions: 8 TOUS dials, with an interchangeable dial from the TOUS WEAR APP, hours, minutes, seconds, month, day, day of the week, daily activity with step counter, calorie counter, distance traveled in miles or kilometers, sports (walking, running, climbing, cycling, basketball and others), vibration alarm clock, heart rate, sleep monitoring, weather information, 1/100 second stopwatch, 3 games and notifications (calls, WhatsApp, email, SMS, Facebook, etc.).