I find the headset gets more hours out of a charge than the DS4 does, usually about 2 hours longer. But the DS4 certainly lasts longer battery-wise than the WiiU Gamepad, which usually needs charging after each play. I think i've only charged the WiiU Pro controller about 5 or 6 times since getting it last year, that's a sign of how long the battery lasts on that thing.
Now, if only Sony would make a DS4 with a longer lasting battery, that would be nice.