X3 Smartwatch with blood pressure and O2 monitor. Includes chest band. 24-hour HRV and ECG report. •Incoming call notification. •Push notifications from apps such as WhatsApp, Facebook, Instagram, etc. and SMS. •Alarm, remote shutter release for smartphone camera. •Supported languages: Spanish, English, German, French, etc. •Includes magnetic USB charging cable. Health Features: • Real-time ECG analysis, with wrist, chest strap, and chest patch measurements. 24-hour ECG monitoring with app recording. •HRV (heart rate variability) data analysis. •Heart rate, blood pressure and blood oxygen monitor. •Pedometer with step, distance and goal setting measurement. •Sedentary lifestyle warning. •Sleep monitor. Screen: 1.3 inches Battery: 160 mAh Approximate battery life: up to 6 days. Standby time: up to 15 days. Compatible systems: Android 4.4+ and iOS 8.0+ Bluetooth: 4.0 Chip: Nordic n52832 Sealing: IP67: Do not use in the shower or bathe with it, do not submerge it, or expose it to steam, hot water, or condensation. ABS, metal alloy, TPU. 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 “Hband” 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.