The HTC Evo 3D is a 3D-enabled Android smartphone developed by HTC, released exclusively in the United States through Sprint, and was re-released as a pre-paid smartphone by Virgin Mobile in May 2012 as the HTC Evo V 4G. A variation of Sprint's flagship HTC Evo 4G, the device is distinguished by its pair of 5 MP rear cameras, which made the Evo 3D the first cell phone to do so, which can be used to take photos or video in stereographic 3D, which can be viewed on its autostereoscopic display without the need for 3D glasses. Several GSM variants are also available in Canada, Europe and Asia.

The HTC Evo 4G is a smartphone developed by HTC Corporation and marketed as Sprint's flagship Android smartphone, running on its WiMAX network. The smartphone was launched on June 4, 2010. It was the first 4G enabled smartphone released in the United States.