Buy with confidence!!! 1.10 Inch Display Watch Face Steps Counter with AMOLED HD Touch Color Screen design, an exquisite visual display, provide you with high-quality touch and visual experience, making all incoming calls and message reminders extremely clear, enjoy a wonderful view. All-day Activity Tracking With app Keep Heath , understand resting heart rate trends and better estimate calorie burn with 24/7 continuous heart-rate, Tune in to your body with breathing rate, heart rate variability and more. You can also set the amount of exercise you want to complete, stay motivated all day long! Sleep Tracker Fitness tracker automatically measures your fall asleep, awake times, light and deep sleep, then review your sleep quality and duration in the App. Please note that the data should be for reference only and does not replace a doctor's advice. 25 Sports Modes Fitness tracker watch with 25 sports modes to track the corresponding exercise. For example: steps, calories, distance, heart rate, exercise time, etc. Let you exercise more scientifically. With connected GPS, it can record your workout route, and so on. Intelligent Notification Long Battery Life You can get calls, SMS messages, and SNS notifications including Facebook,WhatsApp, Instagram, Twitter on your wrist fitness tracker. It takes only 2 hours to charge and you can enjoy up to 7 days of long battery life or 15 days of standby time. Compatible mobile phone system: android 5.0 (inclusive) and IOS 9.0 (inclusive) or above.