DM05 Smartwatch: • 1. circular display.28 inches. Maximum screen viewing quality. Automatic ignition by turning the wrist. Metal box made of zinc alloy. •Incoming call notification, with option to reject calls. Vibration alerts. •Push notifications from apps such as WhatsApp, Facebook, Instagram, SMS, etc. Vibration alerts. •Weather information (App required). •Alarm clock, find a phone, remote smartphone camera shutter, smartphone music control, countdown, stopwatch, alarms with vibration alerts. •Dials of various interchangeable styles. ( App Required). •Interchangeable strap compatible with universal Quick Release system straps. •Supported languages: English, Portuguese, Spanish, German, Italian, Czech, Japanese, French, Polish, Chinese, Arabic, Korean, Dutch, Hindi. •Includes magnetic USB charging cable. Health Features: • Dynamic heart rate, blood oxygen, and blood pressure monitoring. •Pedometer with step, distance and calorie measurement. •23 sports modes, such as: running, treadmill, cycling, spinning, skipping, yoga, basketball, football, swimming, etc. •Sedentary lifestyle warning. •Smart sleep monitor. CPU: RTL8762C Display: 1.28" 240*240 Touchscreen with All Buttons RAM: 160kB ROM: 384kB + FLASH: 128Mb Main Frequency: 40M Bluetooth: BLE 5.0 Heart Rate Sensor: VC31B Battery: 180mAh high-capacity polymer battery Full Charge Time: 2 hours Use Time: 5-7 days Standby Time: 10-13 days G-SENSOR: STK8321 Charging: USB magnetic charger Compatibility: Android 4.4; iOS 8.0 and above Band size: 170-120 mm Waterproof: IP67 Metal alloy, zinc alloy, silicone. 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 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.