I find that a high speed blender or one with super high power  (I use u003ca rel=u0022noreferrer noopeneru0022 href=u0022https://amzn.to/2yykawku0022 target=u0022_blanku0022u003eVitamixu003c/au003e almost exclusively) makes a smoothie that has the texture you are looking for.  Regular blenders might work the first few times that you use them, but they can’t typically hold up to the frequent use and don’t blend frozen fruit nearly as well.