If you want to make thick smoothie bowls you really need a blender that has the power to do it. This has the amount of power you need in addition to the twist tool. It's powerful option that's not as expensive as popular high-end smoothie blenders.
Ninja SS151 TWISTi Blender DUO 1600W
for weighing smoothie ingredients
KitchenAid KQ908 Digital Glass Kitchen Scale
I can't have a smoothie without some added texture on top!