Settings > Network > Wifi > Slide ON switch to OFF
I have an iPhone 4. i turn the wifi off if i dont need it and use 3G instead, or the other way. and sometimes turn the brightness off. Dont play so much 3D games (Sims) Hope it helped :)
Only if your 3G signal is on. If your 3G and wifi signal are both on and if your within wifi, it will use the wifi signal (connection) first.
There is only if you purchase the WiFi & 3G version, then for the 3G there is a contract needed with AT&T, but this can be turned on and off, it is not a 2-year contract. But for the regular WiFi iPad there is no contract required.
To turn off wifi on an iPod Touch you tap Settings --> wifi --> turn slider to "off"
There are 2 different models one with only WiFi for $249.99 and one with 3G and WiFi for $299.99. The early release bundle has a PS Vita with 3G and WiFi and was $349.99 with some bonus items
No. 3g is the use of advanced cellular satellites which enable us to have quicker internet speeds whilst on the move. you do not need 3g when using wifi as wifi is superior.
yes, it does just in case you can not get 3G connected right away
iPad2 comes with two models. One with wifi and another with wifi+3G. iPad2 wifi model can connect to Internet via wifi. Another version have two options. If you are in home with wifi you can connect to it. When you are outside, say at friends home where he don't have wifi, you can use 3G service. For 3G service you need authentic SIM card with 3G service enabled on it.
no it is no but wifi is
The best WiFi Data Card with 3G support is the ZTE AW3632.
As the names imply, the 3G/Wifi Model supports 3G, assuming you have it, whereas the Wifi model only supports standard Wifi.