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Blame other interesting things you might want to wirelessly communicate with for standardizing on power-hungry Bluetooth rather than using a lower-power wireless tech (zigbee, ANT, etc) instead/additionally.


Even by disabling Bluetooth, the battery life of these watches is abysmal.


E-ink, or an LCD variant with a low-power mode (Pixel Qi or a transflective panel) would be a nice improvement, I think.




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