We're seeing some new form factors spring up in the smartphone arena and the DoubleTime and DoublePlay represent two of them. Both feature dual-display designs but they're both implemented differently. The DoublePlay's secondary display makes multi-tasking easy and adds functionality when using certain apps. The DoubleTime, on the other hand, offers a more versatile form factor that allows you to choose to use either the external display or the internal display. Both are form factors that we haven't seen on a smartphone yet but which one is better? If this is the future, which one would you rather see on another phone?

In this Dogfight, Sydney compares both form factors and gives her review on each one. She also compares other features of each phone and gives her final choice on which one you should go for. With a larger display, a better camera, and 4G technology with T-Mobile's HSPA+ network, the DoublePlay has a definite advantage over the DoubleTime, but is it the winner? Watch the dogfight to find out.

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