Okay, I thought that the Moto 360 going 24 hours with always-on (but very dim) display was good. But that time was blown away by the LG Watch R I got in last weekend. I set it for always-on display, at the lowest brightness level (mostly because it was very bright even at that setting!) -- Sunday Took it off the charger Sunday morning at 8:30AM. Spent most of the day with my daughter at an anime convention. Was getting notifications constantly from my wife, plus weather reports, and offers to remotely control my phone's camera. Then wore it to bed like I always do with watches, checking the time as I woke up every few hours. I was about 40 feet from my phone all night, yet it still maintained a connection. -- Monday Monday morning it was at 55%. Went to work, notifications, time checks, and got this cute popup wanting to show me the highlights of our trip the previous day. Never seen that before. Looks like it picked out the first photos of each time period. Interesting. Monday night, after 36 hours of use, the power was down to 15% and I got a first battery warning. Usually this is when I'd put it on a charger. Decided instead to wear it all night again as a test. -- Tuesday Tuesday morning, 8:30AM... 48 hours after last charge... it was down to 3% and to conserve power it automatically stopped its display from being on all the time, but still came on brightly on demand. At 9:30AM it finally dropped to 1% and I gave in. So, 49 hours from 100% to 1%, with the display always on. I'd read that the larger battery in the LG R helped it go two days, but seeing is believing! (The LG has 410 mAh and P-OLED display, Moto 360 has 320 mAh and LCD.) -- Always on, always bright Btw, here's how bright the thing is, even in always-on mode: This is one impressive (and I think good looking) device, especially with the display always on. Hmm. I wonder how long it would go with the display set to only come on when asked. Will test that next.