Dev T-500 S8 series Smart Watch Sleep Monitor Smartwatch  (Black Strap, Free Size)

T-500 is a stylish watch that tracks your health and fitness. It can monitor your heart rate, sleep quality and activity level. You can also customize the watch to fit your unique needs with an additional sensor module or an app. This smart watch is compatible with Android and iOS operating systems. # T-500 is a smart watch for men and women. It has a stylish and modern design, which makes it suitable for both casual and official wear. Furthermore, it offers a variety of functions such as daily heart rate monitoring, sleep monitor, step counting and more. # Its advanced technology allows you to connect T-500 with your phone via Bluetooth 4.0 # The smart watch has an integrated speaker so you can make or receive calls on your wrist without having to take out your smartphone from your pocket or bag. In addition, the smart watch has a call button which allows you to make or receive calls directly from your wrist by pressing the button twice quickly within 0.3 seconds of each other. The call button is also used to answer incoming calls when connected with a mobile phone over Bluetooth connection.