Pat, my wife plays on a Samsung Tab S2 with no problem.
I used to have one of those, and if I recall correctly I could play on it with no problem. I traded it in for the S4 where there are multiple problems:
The keyboard doesn't work at all - it comes up but typing on it does nothing Chi-useful.
Randomly, and frequently, touching any letter or button will reduce the game to postage stamp size in the top left corner. (A slight exaggeration, but it's so tiny that you can't make out any letters.)
The page display is massive compared to the size of the screen. I play in landscape mode and I'd estimate that the display would show in its entirety if the tablet was three times the width and twice the depth. Consequently I have to scroll over to the right to see my full list of words played, and swipe two or three times if I want to see the forum. And then down and across several times to see my progress bar.
All very peculiar.