Power Reserve on the Apple Watch is a useful tool for preserving battery life, but it’s possible to turn it off again. Turning off the Power Reserve feature on an Apple Watch is a fairly simple process that requires only two main steps. Not to mention, it is just as easy to enable it whenever a boost to the battery life is required. Here's how to do both.
When the feature is turned on, Power Reserve provides Apple Watch s with an alert many of the watch features, but it also disables the watch face as well.
Turning Power Reserve on is a quick and easy process. To start, the needs to open the Control Center by swiping up on the watch face. Then, tapping the battery percentage will display how much battery the Apple Watch currently has left. On that screen, dragging the Power Reserve slider across the screen and tapping Proceed on the next screen will turn on Power Reserve. Although this is the manual way to turn it on, as mentioned, the Apple Watch has the ability to automatically enable the feature when deemed necessary.
Turning Power Reserve Off Again
As simple as activating the Power Reserve mode is, turning it off again is even easier as it just requires the to restart the device. To do this, press and hold the side button until the Apple logo appears. At which point, it is just a matter of waiting for the Apple Watch to reboot again. If the battery was too low when Power Reserve was enabled, then it is likely the Apple Watch will need to be charged first.
The Apple Watch is a very popular smartwatch and with the release of the Time To Walk, which works with the Apple Fitness+ subscription service, the Apple Watch is going to remain a highly useful and popular device, making knowing how to control features like Power Reserve all the more important.
Source: Apple