18 hrs - LOL
Nope (according to Apple) - the battery lasts for
90 time checks in a day (six seconds each)
90 notifications in a day
A 30 minute workout period
and
a whole 45 minutes of app usage - that's using it to get directions, set reminders, book an uber, surf porn etc
I don't know about you guys but I look at my watch at least 10 times just on the way into work.
This apple watch is a total joke!