Apple iPhone 4s and Apple iPhone 4

T-Mobile USA is again trying to woo iPhone 4S customers away from AT&T. The carrier's chief technology officer Neville Ray today published a blog post claiming that iPhone 4S devices run faster on its network in several areas than it can on AT&T. Just how fast?

"Our internal tests of unlocked iPhone 4S devices running over 4G (HSPA+) on our 1900 network recorded on average 70% faster download speeds than iPhone 4S devices on AT&T's network," Neville said, noting that he believes T-Mobile's "all you can eat" data is a better value. Neville made the statement in tandem with T-Mobile's increased data speeds in several areas in and around Washington, D.C., Baltimore and Houston – in addition to Las Vegas and Kansas City. He also said improvements are being made in Boston, Chicago, Los Angeles, Miami, Minneapolis, New York City, Philadelphia, San Francisco, San Diego and Seattle.

iPhone 5 owners, however, will find that AT&T has a more expansive 4G LTE network. Are T-Mobile's data speeds and HSPA+ network enough for you to move your unlocked iPhone 4S over? Sound off in the comments.

[via T-Mobile]