If you’re looking for the best blender to make smoothies in, you could always opt for a dedicated smoothie maker rather than a jug or immersion blender and potentially save yourself some coin. Generally speaking these smoothie makers feature a cup that the blade assembly screws onto before being attached to the base. Once blending is complete, the blade assembly can be switched for a to-go lid that includes a spout, letting you sip the drink without having to decant it first. However, it's worth noting that these options do come with some sacrifices to durability and versatility.
With this being the case, we recommend the Breville the Super Q as our pick for the best blender option when it comes to smoothies as it comes with a pitcher so you can add liquid during blending, is also powerful enough to crush ice or nuts, and comes with a travel cup for smoothies. Obviously, you will need to decant the drink from the jug into the cup so it might not be ideal if you're in a panicked rush, but is otherwise a relatively minor obstacle on your way to great smoothies.