Wear OS 5 is on its way, and with it, Google says Android smartwatch users ought to see even better battery life. Running a marathon, for example, will purportedly consume 20 percent less battery than on Wear OS 4.This emphasis on battery life is similar to last year’s Wear OS 4 announcement — and for good reason. Wear OS 4 helped the Pixel Watch 2 last an entire day, something the original struggled to do. That improved battery life has seemingly bought some goodwill. Google says that, in the l...