How To Take Your Apple Watch Off Power Saving Mode. The Apple Watch has a built-in mode thatll disable cellular functionality and the heart-rate sensor when youre working out meaning that youll get a big boost to your battery life. Note that this only works if you have enough battery life to boot the watch.
You can bring your Apple Watch back to normal functioning mode by pressing and holding the side button the same way that you do when you wish to power it on. Keep in mind that this will only work if you have enough battery life in order to boot the Apple Watch back into normal mode. Show activity on this post.
Press and hold the side button until you see the Apple logo.
Note that this is going to turn off the heart. How to Turn ON Power Reserve Mode on Apple Watch. When Low Power Mode is on your iPhone will last longer before you need to charge it but some features might take longer to update or complete. The power reserve mode is a helpful dicovery for me.
