I am on the 8.05 beta, not sure if that is a factor. When I turn auto brightness and set brightness to 100% I can clearly see the watch in bright sunlight. But when I turn auto brightness off I have to choose between low, medium, and high... What do these choices affect? I am guessing they are for the brightest the watch will get, depending on the ambient light? So if I want the brightest backlight on auto brightness I have to set to high? And then why do I get the warning about battery life - if I am in a room with normal lighting wouldn't I get the same backlight regardless of whether it is low, medium, or high - because it AUTOmatically gives only the light that is needed?