Google Now on?
All Location services on?
Edge? 3G? LTE? Wifi?
Google now and the location services in google maps are HUGE battery users, but I never see if people use them or not. All these 7h, 1day battery life people are NEVER on LTE as seen in their screen shots, its ALWAYS Wifi (which uses less battery) or i don't even see a data indicator at all.
All these variables makes these battery claims baseless. Case in point: my roomate turns off data on her Galaxy Ace II, she gets 6 days battery life.