In fact, the brand is extremely popular in China, Russia, India, Indonesia, and other countries.
The name of the official app has changed, but the app itself at least for Android hasn't gotten any better and remains the same on the inside, meaning you still see shortcuts for the same settings at multiple locations and the ones that aren't supported by the device continue to be grayed out by Amazfit instead of being hidden.
The biggest section shows off the time with the space up above displaying data from current smart function in use.
There's no way to fix this since you cannot control the brightness of the screen.
But it's a Casio for the wearable tech generation.
It roughly recorded the sleep duration and breakdown of deep and light sleep stages.