Quote:
Originally Posted by MaxT
I need it to last at least a day with Wifi turned on.
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That is not a trivial endavour.
(But, as written, maybe disabling most of the rest... You would have to get your hands dirty technically. But then again, there will probably be more pages on the web about "How to improve Android's battery life" than).
Not a trivial endavour also because - specified for the rest - the chief recipe for long battery life is "turn all the radios off".
Consider your tradeoffs in theory before you pick your device model. Maybe you are one of those who are better off with the slower devices. But this requires anyway data: "With the device X, with changes Z we achieved results Y".