It's battery only last 9-12 hours on full charge. From The LG Watch Style is a very basic Android Wear 2.0 device "Its 240mAh battery, which is rated to last "all day," barely survives a full workday, much less 24 hours. On a busy day with frequent notifications and a moderate amount of testing, the Style conked out nine hours after being fully recharged. With less-intensive use, the device made it through close to 12 hours, which means you'll still have to plug it back in about twice per day. Compared to the existing smartwatches that typically last about one and a half to two days, the Style's endurance is its biggest drawback." That's unacceptable, simple as that.