A
I'm not sure if you can, but you can change the resolution to 720p.
Yep.Without root?
Is the screen resolution change independent of other Power savings?Yep.
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Recently tried it for a whole charging cycle by accident and it's pretty nice for adding additional SOT.
Yep, it is. You can have other modes and not do that. It's optional.Is the screen resolution change independent of other Power savings?
That's nice. Samsung allows you to change the resolution on the note 7 too but it is part of power savings. There is some customization available but power savings would disable some things that can't be re enabled independentlyYep, it is. You can have other modes and not do that. It's optional.