The KINGWEAR KW40 smart watch offers an extra long life of up to 40 days, which can be up to 20 days under heavy use. In addition, it has a neutral, clean design, but comes in a variety of colors so everyone will find it appealing. Also, it has a touch screen and a low price, which is currently only $39.99.
It is a metal watch case that is neutral and free of interference and is rounded at the edges and quite thin. Available in several colors: silver, black, pink, blue.
The touchscreen is a pleasantly large 1.3 inch screen with a 240 x 240 pixel resolution. A round display, so not just a rectangular display is placed inside the round watch face. The brightness of the watch face and display can be changed. The display turns on automatically to raise the wrist.
If you do not have a genuine operating system (such as Android Wear), the firmware is responsible for its operation. It also comes with a mobile app to set up and use it more efficiently. Some functions can be used without any extra equipment, such as pedometer or heart rate measurement, sport modes. The collected data can then later be synchronized with your mobile phone and tablet.
Powered by a 340mAh battery, a maximum of 40 days is expected, according to the manufacturer. But with more intensive use, this is approx. That means 20 days, which of course is still very good.