This is a multi-function smartwatch, which can make your sports more intelligent and make your life better. It supports multiple function modes, like time display, calendar mode, steps record, calorie consumption, distance record, alarm clock, stopwatch, temperature display, altitude pressure and UV index. What's more, after connecting it with phone and installing the specialized APP on phone, the watch can realize more functions, such as, call reminder, message reminder, remote camera, etc. Suitable for IOS 8.0 and above or for Android 4.4 and above, and it supports BT 4.0.   Features: Supports BT4.0, suitable for IOS 8.0 and above, or for Android 4.4 and above, easy to pair it with phone through BT connection.  Supports multiple function modes, like time display, calendar mode, alarm clock, stopwatch, temperature display, altitude pressure and UV index.  Supports pedometer function, including steps counting, calories consumption and distance calculation.  Supports call reminder and messages reminder(like SMS/WeChat/QQ/Facebook/WhatsApp/Instagram, etc) for not missing any important call and information.  Through the mobile phone APP, it can control your phone to take photos.  The watch can store sport data up to 30 days, and you also can share your sport data to social media.  Built-in button battery, and the low battery icon will appear to remind you to replace the battery timely once the battery is low voltage.   Specifications: Color: Green, Silver, Black+Red, Red+White (Optional);  Chip: Dialog Top BT Chip-DA14580;  BT Version: BT4.0;  Sensor: G-SENSOR;  Display Screen: 1.1" Screen(Low power segment code display);  Water-resistant: Underwater 30m;  Battery: CR2450 520mAh Button Battery(Replaceable);  Usable Time: Motion Mode 1 Year, Timer Mode 2 Years;  Supporting System: for IOS 8.0 & above/Android 4.4 & above;  Whole Length: 24.8cm / 9.76in;  Item Weight: 66g / 2.33oz;  Package Weight: 251g / 8.85oz;  Package Size: 18.2 * 12 * 6cm / 7.17 * 4.72 * 2.36in;   Note: 1. Please read the user manual carefully before you use the watch and use the watch rightly based on the user manual so as to avoid the unnecessary trouble.  2. Please download the APP software according to the user manual and install the software on your phone.   Package List: 1 * Smart Watch;  1 * User Manual(English & Chinese)