Review: iPhone On Verizon

The difference in call quslity was night and day, reviewer Brian X. Chen says, making the iPhone on Verizon "a better phone" than iPhone on AT&T. But Verizon's 3G network isn't as fast as AT&T's so data speeds are slower.

"After years as an iPhone customer on AT&T, I forgot what it was like to have a reliable, working phone.

But over the weekend, when I called buddies with both an AT&T iPhone 4 and subsequently a Verizon iPhone 4, we could immediately tell the difference.

'Holy crap, you sound so much better,' a friend said after I switched to the Verizon handset while walking through downtown San Francisco. 'That’s amazing. I can actually hear you.'”