Display score on SX600 useful?

[janamdo]

Now its possible to read a score on Mobilsheets on a tablet as a songbook
What is the use now of the rather small display on  keyboard PSR SX600?

[janamdo]

I was thinking when the plan was to buy the psr 700SX for a bigger display versus  the PSR 600SX ?
Both screens do have the same functionality?
So i decided to choose for the PSR 600X now  and try first to  learn play better and wait for the next PSR SX700 to come

How to use the display optimal ?