Currently i am in a very good 3G area where i consistently get 4-5 bars all the time. I recently started using my wifi because i heard it uses less battery. But i only get 1 bar TOPS for wifi and i notice things like web browsing and facebook are ridiculously slow (wifi at my school sucks). Then when i turn off the wifi and the phone switches to 3G, everything is blazing fast. So does 5 bars of 3G use less battery than 1 bar of WiFi? if so im turning wifi off.