Curious how long Apple claims the battery life lasts, I found on their site they state: "Testing conducted by Apple in March 2015 using preproduction Apple Watch and software paired with an iPhone using preproduction software with 5 time checks (4 seconds each) per hour. Battery life varies by use, configuration, and many other factors; actual results will vary." https://www.apple.com/watch/battery.html Technically this does not sound good at all. Their testing equates to 16 minutes of display usage and 48 hours of standby... I.e. according to Apple the Watch can only be used for 16 minutes if it's worn over two days. It's a miracle that my Watch seems to have gotten around 5 hours of moderate usage and is still at 55%. I'm interested in learning how long the Watch battery rates with the display on the entire time -- a 100% usage test. Has this been done already?