Apple Watch reportedly has time-only 'Power Reserve' mode
An ultra-low-energy 'Power Reserve' mode could help Apple Watch time keep ticking.
Apple has repeatedly said the Apple Watch will last about a day, which means you're going to want to charge it every night so you don't have to take it off when it actually runs out —*be it the middle of the night when you're sleeping or early the next day when you'd rather be using it. If something happens and you can't get to a charger in time, however, there might be a time-only "Power Reserve" mode to give you an extra buffer.
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