The Elite has more tools for targeting trouble spots.
The Mini only has one head, which is great but I think the other tools are nice to have.
As for a comparison, I was using the Sharper Image model that I recieved as a Christmas gift and was skeptical that the actual Theragun model was an improvement. What I can say is that the triangular shape of the handle gives me more options to use it in different positions. The gun style is limiting on where I can reach problem areas. I didn't know this until I tried the Theragun Elite.
Heck, I didn't know that I'd like using any of these until I recieved the Sharper Image unit as a gift.
Now I'm hooked.
Image of all three with included tools.
View attachment 159279
Tutorials on how to use Theragun
Therabody
www.therabody.com