There are a lot of blenders out there specifically made for making smoothies. I looked at a lot of them before finally deciding on going with the Ninja Professional Blender. I didn't want to buy the absolute cheapest blender out there, but at the same time, I also didn't want to spend $600+ dollars on a smoothie either. After weighing my options, I finally decided on getting the Ninja Professional Blender. It chops/blends ice, it has triple blades, it's straightforward, and it does what I need it to do.
When I'm done blending my smoothies, they do still have a bit of texture to them, meaning that they are not butter smooth or anything. But they are definitely smooth enough for my liking. I don't blend my smoothies for long, mainly because I don't want to absolutely pulverize the ice that's in there. For the price that I paid for it, I am very happy with it.
I do recommend the Ninja Professional Blender for making smoothies. If you are a die-hard smoothie maker, perhaps you'll want to spend hundreds of dollars on a specialty blender that makes smoothies that are 100% homogeneous. My smoothies are definitely smooth and drinkable enough without breaking the bank. I am getting all of the benefits of the greens that I am blending and that is a-ok with me :)
Below is the video I made of me making the smoothie I described in a previous post. I really need to get to the grocery store so I can buy some more fruits and veggies...I'm out of the fixin's for my usual smoothie, and I'd love to get some new stuff to experiment with.