Turn on Power Reserve. When your battery charge drops to 10 percent, your Apple Watch alerts you and asks if you want to use Power Reserve. When the battery gets too low, your watch automatically enters Power Reserve, and appears next to the time. Learn how to maximize your battery life and lifespan.
https://support.apple.com/en-sg/HT204608
Turn on Power Reserve. When your battery charge drops to 10 percent, your Apple Watch alerts you and asks if you want to use Power Reserve. When the battery gets too low, your watch automatically enters Power Reserve, and appears next to the time. Learn how to maximize your battery life and lifespan.
https://support.apple.com/en-us/HT204608
Watch bands can be worn and swapped across Apple Watch models (of the same size) A fancy band can be put on an Apple Watch Sport, if you wish: the easily swappable bands work across models, as long as you have the same-sized Apple Watch. 38mm and 42mm bands fit differently. Otherwise, you're set. 1:20.
https://www.cnet.com/news/11-surprises-i-learned-about-the-apple-watch/
Power Reserve lets you see the time on your Apple Watch while preserving your battery life. In Power Reserve, press the side button to show the current time in a 24-hour format. While your Apple Watch is in Power Reserve, your Apple Watch and iPhone won't communicate, and you can't access other watch features.
https://support.apple.com/en-sg/HT204608
Power Reserve mode. The official Apple Watch recharge time is 1.5 hours to 80% and and 2.5 hours to 100%. That's a bit slower than the average smartwatch. Moto 360 charges up in 2 hours flat. But I've been able to completely recharge my Apple Watch in the same 2-hour window.
http://www.techradar.com/reviews/wearables/apple-watch-1264567/review/3
The smaller Watch should last for 18 hours of all-day activity, up to 3 hours of continuous talk time, up to 6.5 hours of continuous audio playback or workout, up to 48 hours of time checking, and up to 72 hours in Power Reserve mode which only shows the time.
http://bgr.com/2015/04/28/apple-watch-battery-life-performance/
[–]WetEraser 1 point2 points3 points 4 months ago (1 child) The watch wouldn't be able to preserve the power needed to last so long if it was communicating with your phone. The entire way it lasts so long is the watch is essentially in airplane mode, not even registering screen touches.
https://www.reddit.com/r/AppleWatch/comments/5c1hwq/how_long_can_your_watch_last_with_power_reserve_on/
Power Reserve notification (left), Charging the Apple Watch (middle and right) As for charge times, Apple says it takes about 1.5 hours to reach 80% and up to 2.5 hours for a full 100% charge. Real-world Watch battery performance.
http://bgr.com/2015/04/28/apple-watch-battery-life-performance/
Power Reserve lets you see the time on your Apple Watch while preserving your battery life. In Power Reserve, press the side button to show the current time in a 24-hour format. While your Apple Watch is in Power Reserve, your Apple Watch and iPhone won't communicate, and you can't access other watch features.
https://support.apple.com/en-us/HT204608
Apple Watch depletes the battery in three hours if used for non-stop phone calls. Working out with the heart rate monitor or listening to music does the same in six hours. Conversely, just checking the time every so often boosts it to 48 hours. But you'll also need to think about the future here.
http://www.techradar.com/reviews/wearables/apple-watch-1264567/review/3
how long does the apple watch in power reserve
The apple watch in power reserve for 1.5 hours to 80 percentage and and 2.5 hours to 100 percentage.