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Short for "3rd generation mobile telecommunications", 3G generically refers to a set of standards for mobile phones and mobile telecommunications services. Often used when referring to a 3G mobile data connection.

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How does power usage for data over WiFi compare to data over 3G? (Ignore LTE for now)

I never really did a precise comparative test but it is clear that wifi uses way less power than the 3G data connection. …
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