This is a great little piece of mind addition to the HTC One! Following the update to 4.3, alarms set on your HTC One will still work even if you power the phone completely down.
Extremely helpful if you do dopey things like I do. Say you’re out at a conference or on a business trip, maybe you meet up for drinks and run you phone battery all the way down. You get back to your hotel room and plug it in, but forget to power it back on. No worries, HTC has your back.
Let’s take a look!