What’s the difference between a smoothie maker and a juicer?

I’ve just been given a kenwood smoothie junior maker for my birthday and I’ve been making smoothies without any problems, but now I want to try making some juices.

In particular, I want to make carrot juice, but I’m worried that my smoothie maker won’t be able to process the carrots. (ie too fragile or not enough power) so, is there any difference between a smoothie maker and a juicer?
- axiomaticsparkz