Hi Joshua,
Thanks for your interest in the HTC EVO 3D! These resources should be helpful in answering the forum questions.
·
EVO 3D Sprint Press Release
·
HTC EVO 3D Spec Sheet
Additionally, 3D can be disabled on the device. Please let me know if you have additional questions.
Thanks!
Jessa
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The spec sheets dont hint toward LTE. And yes WiMaX and CDMA running simultaneously allow you to use data and voice at the same time.