able
From 1s directly to 5, the change seen is that the volume has increased, but this volume change does not affect sleep, but almost double the weight is the first perceived, but only stays in the perception degree, the problem is not big. The colorful screen can indeed be convenient to a certain extent, such as watching the time, but see what notice, there is no reply processing, feeling of little use. For heart rate checks throughout the day, this indentation appears on the arm after a day of wearing it.
Yes, this one is specially adapted and can be used.