AT&T was the only carrier to offer Apple’s iPhone when it was first released, prompting many users to switch in order to snag the most advanced mobile device. Since then, the iPhone has slowly come to each of the three other major carriers, giving customers a choice and a chance to weigh the pros and cons of each provider.
Unfortunately, the differences between different carrier plans and pricing can make this choice overwhelming. We did the math to find out which of the Big Four gives you the biggest bang for your iPhone 5 buck.
Apple’s iPhone may hold the top spot among smartphones in the Japanese market, but a recent push by Sony and a major carrier has its Xperia handsets rushing up the sales charts.

Sony’s Xperia Z and Apple’s iPhone 5. Image via Gizmag