what drains your battery faster? 3G or WIFI?

So what drains your smartphone’s battery more you think? Using a local WIFI network or the 3G cell network to download stuff from the internet? I Googled it but I didn’t find any solid hardcore scientifically based evidence. Time for a small home-grown scientific experiment then!

So here it is *drumroll*, the WIFI vs 3G battery drainage challenge!

I fired up the Grooveshark html5 app (which is quite nice actually) to non-stop stream music for 20 minutes and checked the battery usage when repeating this for both types of networks. In the meanwhile I was keeping anything else down to a minimum (like activating the screen which is also a juice sucker). Checking the battery usage means simply writing down the percentage displayed in the top Android menu bar before and after the test, so it’s not that precise, but it’ll do.

The results after 20 minutes of non-stop music streaming where:

  • WIFI battery usage : 2% drained
  • 3G battery usage : 5% drained

WIFI beats 3G with more than half of the battery usage in this (not so inaccurate) test. But still, it gives a pretty clear idea of the winner here. So roughly speaking, on 3G you have about 6 hours of music to go and a whopping 16 hours on WIFI before your battery is dead, if you have a Sony Xperia. Taking mobile data costs into account, WIFI certainly seems to be the preferred option to stream anything over.

Heck, I’ll even trow in some pixelarty kinda infographic, to make all the numbers just look a bit more pleasing.

wifi vs 3g battery usage duke-out infographic (sort of)

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