Nachod :
                
        
                
                    
                       Note: Both are Micro Sd's sorry for the typo
                    
                 
             
         
Pro is faster.. I would use the pro for like gopro 4k video or 1080 recording and the other for your phone (like photos and some video) if that make sense.
I use sandisk extreme plus class 10  for my gopro and regular class 4 sandisk for my phone.
If you need to record in high quality video  you need faster card and to upload to the computer it helps as well.