From 9to5Google: As Mobile World Congress kicks off in Barcelona, Samsung and HTC have both unveiled their respective 2015 flagship devices. First off, HTC this morning unveiled the One M9. The device features a Snapdragon 810 processor under-the-hood with a 2,840mAh battery to go with it. HTC infamously ditched Megapixels with its One M8 flagship, […]