HTC One battery tests deliver the best web browsing endurance

Now a 3rd party battery test confirms other 3rd party tests of the phone's endurance, as well as our own real-time observations about the handset's stamina while using it for reviews and comparisons.

In fact, at close to 10 hours, the phone scored the most out of them all in web browsing endurance, including the reigning champs RAZR MAXX and iPhone 5. It also is up there in the top with more than 10 hours of video playback duration, alongside proven marathon runners like the S4 and III, as well as the iPhone 5 and the obligatory RAZR MAXX. 

Talk times were also close to those delivered by the S 4, at more than 13 hours, and about the only thing hindering the HTC One's final score is the standby time - it appears there is some leakage during standby, which draws the battery faster than it should. These are usually fixed with a firmware update, though, after the company identifies the rogue chip or app that causes the unnecessary battery drain, so when this happens, we might be looking at one of the best battery lives on a smartphone, delivered in the slender package of the HTC One.

source: GSMArena