Smartwatch L19 with app notifications. Health monitor with ECG, blood pressure and blood oxygen monitor. Leather Strap: • Incoming call alert. Call log and contact synchronization. •Push notifications from apps such as WhatsApp, Facebook, Instagram, etc. and SMS. •Stopwatch, alarm, calculator, calendar, remote control of music playback. •Various dials of different styles, interchangeable. Smartwatch and smartphone search alarm. •Supported languages: Spanish, English, German, French, Italian, Portuguese, etc. •Includes magnetic USB charging cable. Health Features: • Heart rate, ECG, blood pressure, and blood oxygen monitoring. •Pedometer with step, distance and calorie measurement. •Various sports modes. •Sedentary lifestyle warning. •Sleep monitor. Screen: 1.3 inches, 240x240 px Battery: 300 mAh Compatible systems: Android 5.0 and above, iOS 9.0 and above. Bluetooth: 3.0 + 4.0 Chip: MTK2502 Sealing: IP68 (do not expose to steam, hot water, or condensation) Metal alloy, ABS, leather. For the smartwatch to work, you need to download a free app for synchronization. To do this: • Scan the QR code included in the instruction manual and download the app. •You can also download the “M Active” app directly from the Google Play Store (Android) or App Store (iOS). •Once downloaded and installed, open it and accept all requested permissions; sync the smartwatch with your mobile phone via Bluetooth using the app.