18 hours has been their standard "all day" battery life since Series 3 came out. Here's the thing: My Series 3 easily lasts me 2 days without using it for thin

18 hours has been their standard "all day" battery life since Series 3 came out. Here's the thing: My Series 3 easily lasts me 2 days without using it for things like exercise, bluetooth audio, etc. With exercise it lasts all day. I have never run out of power unless I didn't charge it the previous evening and had multiple exercise sessions on the same charge. This is way better than my Series 0 did. So the 18 hours is really a lot more than 18 hours for most people. My question now, is: Will my battery life really only be 18 hours with this always-on display?