3 ms·
> I turn my wifi off to save the battery Sending/receiving data over wifi takes roughly ~8x less power than sending/receiving data over cell. If you want to s
by kllrnohj 10y ago
> I turn my wifi off to save the battery
Sending/receiving data over wifi takes roughly ~8x less power than sending/receiving data over cell.
If you want to save battery you need to turn off data entirely not turn off wifi. Turning off wifi ultimately costs you battery.
- comboy 10y agoNot if I'm out of range of my home wifi which is practically the only wifi I connect to. I think my phone last longer like that, but I never actually measured it, so maybe it's not worth it after all. I guess I also don't like the idea of broadcasting these few known networks I have saved.
- deleted 10y ago[deleted]
- bogomipz 10y ago>"Sending/receiving data over wifi takes roughly ~8x less power than sending/receiving data over cell" How did you arrive at this 8x figure? I don't think this is correct at all. See: http://people.cs.umass.edu/~arun/papers/TailEnder.pdf http://people.cs.umass.edu/~arun/papers/TailEnder.pdf Additionally power efficiency is related to distance from the cell tower which is generally much further away than a wifi access point.
- kllrnohj 10y agoWere you misled by the changing axis scale? From that paper: > Our measurements (Section 3) confirm that the transmission energy consumed by WiFi is significantly smaller than both 3G and GSM, especially for large transfer sizes. Also that's 3G, not LTE which is what most everyone is using nowadays.