3G Simul Data period! I'm not sure why there are not droves of people excited about this?? I just bought the phone and have ZERO 4G in my area (I'm ok with) and this thing rocks! Benefits: Navigation Continues while on phone call, Download Music with no interruptions, Receive / Send Emails while on call, Rec Photo Text Messages during phone conversations... The list goes on! Plain and simple this feature is Fn Awesome. There is ZERO degradation in download speed or upload by the way while you are talking on the phone. What is Verizon's reasoning for not wanting their Employee's to sell this Benefit or downplay it?? I have no idea except that it would destroy sales of every other phone on their network possibly? That is my two cents for now. Loving this phone !!!