This smartwatch is not just about style, there's a huge practicality of having a small device attached to your wrist that makes so many problems go away Features:2 in 1 Smart Watch & Headset: detach the dial then it can work as headset, free your hands and make your life more convenient. Heart Rate Monitor: with the high accuracy sensor, you can know your heart rate in real time no matter where you are. Be your own health steward and enjoy your smart life. Perfect Life Assistant: notification reminder makes your farewell to the left out message and call. Sedentary reminder and sleep monitor care for your health. IP67 Waterproof: withstands daily waterproof needs like washing hands, being caught in the rain, sweating, etc.. .Note:1. Measurement data is for reference only, not for medical use. 2. Working time varies with use and other factors. 3. Item's color may be slightly different due to the monitor setting or other factors, please in kind prevail. Thanks Parameters:Screen: 0.96'' TFT; Resolution: 80 * 160; CPU: nRF52832CIAA 4.0 + CSR8610 3.0; Memory: RAM 64KB + ROM 512KB; BT Version: 3.0 + 4.0; Compatibility: Android 5.0 / iOS 9.0 or later; APP: H Band; Waterproof Grade: IP67; Built-in Battery: 3.7V 100mAh Lithium-ion Polymer Battery; Normal Use: 3 Days; Standby Time: 7 Days; Functions: Heart Rate Monitor, Headset, Message Reminder, Call Reminder, Alarm Clock, Sleep Monitor, Sedentary Reminder, Remote Camera, Stopwatch, Phone Look up, Countdown, Calories Counter, Mileage, Pedometer, Raise to Brighten Screen; Specifications:Material: Zinc Alloy + Aluminum Alloy + Plastic + TPU; Dial Size: 63.2 * 24.3 * 14mm; Watchband Size: 19.8 * 246mm; Item Weight: 44g / 1.55oz; Package Size: 14.2 * 9.9 * 3.5cm / 5.59 * 3.90 * 1.38in; Package Weight: 154g / 5.42oz; Package List:1 * Smart Watch; 1 * Charging Clip; 1 * Earbud Tip; 1 * Manual