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Besides the different name, the device is only slightly different from AT&T's version. The phone is slightly thicker at 2.7 x 5.1 x 0.38 inches and has a larger 1,800-mAh battery. Furthermore, as the 4G in the device's name suggests, Sprint's WiMAX fast data transfer comes standard.
The rest is identical: a 1.2 GHz Exynos CPU, Android 2.3 Gingerbread and 16 GB of storage.
Samsung Epic 4G Touch costs $199 after $300 instant savings with a two-year contract. You can order it here.