How is the -10 days battery effect calculated? Is it against a watch face which updates every second?
it does not make a big difference. as per my experience (bluetooth on, heart rate off) most of the watchfaces cause 4% drop each day without exposure to direct sunlight. with 1-2 hours of sunlight it's only 2% drop.
i think this is the most useful watchface considering the minimal impact on battery life. i did not notice any difference on battery life compared to low powered watchface.
