I always do this out of habit, but it recently occurred to me that Android might be clever enough to automatically turn it off when I've got wi-fi access. Is it?

  • 1
    eh @beeshyams – missing a "no" somewhere? :)
    – Izzy
    Commented Jan 5, 2018 at 18:02

1 Answer 1


Connecting to WiFi automatically disables mobile data on most phones, so turning it off manually does not save your battery. There are some phones which have a "turbo download" mode, that uses both WiFi and data to download files faster, however most phones don't have it.

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