Imagine if your watch could do more than just tell time. What if it could track your daily steps? Give alerts when you receive a text message? Or even make calls? One watch that can do all that and more is this U8 Version 3.0 smart watch. 1.44" Capacitive Touch Screen TFT LCD. Time / Date / Week / Battery state display. The U8 smart watch runs on a rechargeable, built-in 230 mAh battery. One a single charge, it has a talk time of up to three hours, standby time of up to 120 hours and charging time about 1 hour. This watch is Bluetooth 3.0 enabled for easy wireless syncing. To know how to connect U8 smartwatch, go to the link: https://www.youtube.com/watch?v=Y2E-vQy5BM0. Smart watch is connected with the mobile phone. You can dial and answer the phone on your U8 smart watch. Smart wach is connected with mobile, and the phones bluetooth is open, you can read its messages from your watch. If you have an Android phone, then download the app to sync messages or call history to this watch. Its phonebook feature displays the caller's name or number. For phone, app not available. With Bluetooth connection only call and message function available. Flexible and durable TPU wrist band gives best comfort while wear.