This is a clock. First of all, their function is to show the time. With this function, they cope with 100%. However, I noticed a big minus in the work of the backlight: if it's already dark, and I want to set the alarm time, then I won't be able to do it using the backlight! I can turn on the backlight while viewing the set alarm, but I can NOT turn on the backlight while setting the alarm. To change the alarm time, I have to do it in the dark BLINDLY, and then after saving, view it with backlight. There is, of course, one option - to find an external light source. I put up with this shortcoming, since I mainly use a smartphone / player as an alarm clock. However, perhaps someone plans to use such a watch, for example, on a hike in the forest. I advise such users to take into account the features of the backlight when buying.
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