Boasting one of my favorite slide-out keyboards ever and an eye-popping 4-inch AMOLED display, the Epic 4G for Sprint raised the bar for smartphones when it debuted in 2010. The 1-GHz Hummingbird processor kept this handset humming along, while the 4G WiMax connection delivered impressive speeds for Web surfing. While the 5-MP camera wasn’t very quick, it produced clear and rich photos, as well as 720p video. You got all of this in a very portable, 5.5-ounce package.
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