Is there any way to make my iPhone's alarm time appear on the watch?
You can set up alarms with the same repeat function as on the phone. As I sleep in my watch I've just switched over to the watch completely now. The first week I had the phone with a backup alarm 15 minutes later, just in case but I didn't need it. The watch alarm is fantastic.
Does it have an audible alarm or just vibrate?
Or is it intelligent, so if your wearing it, it vibrates, if it's charging, its audible?
Both. It triple taps your wrist whilst beeping at you. I'm a very heavy sleeper and this thing wakes me up.
I just noticed this the other day but when an alarm from your phone goes off and you have the watch on it goes to the phone too. I don't wear my watch at night so I didn't notice it til I snoozed and put my watch on one morning.
when do you charge it?
I charge mine in the morning after getting up, while showering, getting dressed, feeding the cat, etc. All up about an hour before I leave for work. That easily takes it through the day and the following night, with power to spare.
EDIT This is my night watch face:
Image
It prevents disturbing bright flashes when I move around and the display comes on.