If you are using the CDMA-based handset, being the iPhone 4S on both Verizon and Sprint, you`re left with the same 3G speeds you`re currently getting which could be great, but come`n, they`re not as fast as AT&T`s.
Am major shortcoming to CDMA is that you`re not allowed to use data and voice simultaneously, meaning you can`t browse the web and make a call at the same time.
So, if you want hit the speed road on the iPhone 4S, AT&T is definitely your choice.
[Via]
If you found this post useful, dont forget to click the +1 button Below