What is 3G for the iPhone 4? Can I turn it off and still use the internet?
I just got an iPhone 4 two days ago and I'm noticing the battery isn't the greatest so I'm reading reviews on how to save the battery life and someone said to turn off 3G. What is 3G, what does it do and can I still use the internet if I turn it off?
My plan is just prepaid, no data, I only use the internet when I'm in Wi-Fi range.