In this demo, I show you how to enter power reserve mode on the Apple watch (from Side/Friends button held in for 2 seconds) or from the Settings glance. As power reserve only displays the time, no other functions are running on the Apple watch: including VoiceOver. So with the assistance of the light detector app running on my iPhone 6 plus, I show you what happens when you press the side/friends button in. The light detecter emits a higher pitch as the time appears on the top right hand side of the screen and then goes away after a second or two. If you hold the side/friends button in for 4 seconds, again with the assistance of the light detector,the Apple logo lights up in the middle of the screen, stays on, and the Apple watch is restarting back to the clock face, full functionality, and of course VoiceOver.