1、IP67 professional waterproof, suitable for all kinds of water sports wear. 2、High-precision smart color touch screen, lightweight and easy to operate. 3、The whole process to help you sleep monitoring, generate professional sleep reports, develop healthy sleep habits. 4、Other functions: Pedometer, calorie counter, distance, sedentary reminder, heart rate monitoring, etc. 5、With call reminders, caller ID and SMS notifications, so you don't miss important information. Features: 1. IP67 professional waterproof, suitable for all kinds of water sports wear. 2. High-precision smart color touch screen, lightweight and easy to operate. 3. The whole process to help you sleep monitoring, generate professional sleep reports, develop healthy sleep habits. 4. Other functions: Pedometer, calorie counter, distance, sedentary reminder, heart rate monitoring, etc. 5. With call reminders, caller ID and SMS notifications, so you don't miss important information. Specification: CPU: LD719-V1.0 Button: single touch Bluetooth: 4.0 Bluetooth name: D13 Tactile: motor Resolution: 240*240 Type: Oled color screen Material: lithium polymer Capacity: 100mAh Standby time: more than two weeks Use time: more than 1 week Charging mode: USB interface charging Support mobile phone version: for IOS8.0 or above, Android 4.4 or higher Step: support Distance: Support Calories: Support Blood pressure: support Blood oxygen: support Information reminder: for QQ, facebook, whatsapp, twitter, Skype, instagram, WeChat Sedentary reminder: support Alarm clock: support Stopwatch: support Sleep monitoring: support Looking for a mobile phone: support Looking for a bracelet: support Raise your hand to brighten: support APP language: Chinese, English, Western, French, German, Russian, Dutch, Portuguese, Japanese Package List: 1 * Wristband 1 * Instruction Manual 1 * Strap