1. Product description: - Material: Silicone - Weight: 0.18 kg - Color: Green - Dimensions: 47*13.9*220 mm - Screen size: 1.39 inches - Screen resolution: 360*360 - System requirements: Android 4.4 or higher, iOS 8.0 or higher, supports Bluetooth 5.0 - Bluetooth version: BLE 5.0 - Battery capacity: 400 mAh 2. The package includes: - 1 * Smartwatch - 1 * Charging cable 3. It can monitor heart rate, steps, distance, calories and other sports data in real - time to help improve sports performance. It also offers 24 - hour heart rate monitoring and measures data such as blood pressure, blood oxygen, and night sleep. 4. The smartwatch has an amazing battery life. With a built - in 400 mAh battery, it can be used for up to 5 - 10 days and has a standby time of 30 days. 5. This is a 1.39 - inch full - HD touch - screen smartwatch for men, equipped with Bluetooth 5.0, a built - in Hi - Fi speaker and microphone for clearer sound and smoother calls. The men's smartwatch with phone function is compatible with Android 4.4/iOS 8.0 or higher and Bluetooth 5.0 or higher.