[Blood Oxygen Heart Rate Tracking]heart rate watch provides single-time blood oxygen and real-time heart rate tracking data. You can check those health metrics anytime, anywhere conveniently on your wrist digital watch, [1.1in AMOLED Color Touchscreen]The fitness tracker showcases a sleek curved design and boasts a 1.1in AMOLED color touchscreen, enhancing your visual and operational experience. Choose from our extensive collection of 70+ cloud-based watch to personalize your device according to your preferences, mood, or outfit. [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. [Smart Reminder & Versatile Assitant]An easy-to-use activity fitness tracker with intelligent features. Including Call & Message Reminder,Remote Photograph, Drink Water Reminder, Sedentary Reminder, Female Health,Family Health, Alarm Clock, Stopwatch, Find Device, etc. [Long Battery Life]The fitness watch uses magnetic fast charging to provide a better battery life experience. It takes 1-2 hours to fully charge and can be used for up to of regular use and 10 days of standby. Compatible mobile phone system: Android5.0 (included) and IOS9.0 (included) or above. Battery Information: Battery Type: Lithium Polymer, Battery Capacity:90 Milliamp Hours, Battery Size: (22.6 x 13.0 x 3.6)mm, Number of Batteries: 1 piece, Battery Weight: 1.7grams, Battery Charge Time: 2 Hours, Battery Power: 0.33 Watt Hours Color: C Black Material: PC+ABS Package Contents: 1 * Activity Fitness Trackers Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.