I'm now exploring my new Z2, and being obsessed about battery life I am curious about the stamina mode.
So I get that on the very basic level, it simply shuts down WiFi and mobile data when the screen is off and turns them back on when the phone is active.
But what happens when I add apps to the "whitelist"? If I add gmail to get email notifications - would it keep data running? would it turn it on periodically (e.g. like Juice Defender)?