What is major difference between Tarot 680 Pro and Tarot 690s? Other than Power distribution pcb?

There is a post regarding exactly this on blog.banggood.com

Google responds far more quickly than we RCI members!
Try it sometime

Regards

Quote from: K K Iyer on June 16, 2020, 07:06:19 PM
There is a post regarding exactly this on blog.banggood.com

Google responds far more quickly than we RCI members!
Try it sometime

Regards

I read it, but its not clearing whats difference, its  more about description of 690s

Ok. Await a better response from a knowledgeable member.