Im looking at picking up either an iPad Air or Samsung Tab S 10.1. 

Would prefer Samsung as I am in the Google eco system and watch lots of Netflix etc, which screen suit. My only issue is games storage is pretty small on the Samsung compared to a 64gb iPad. 
Can you transfer games from Google Play on to a SD card in the Tab S. That way I can just use my 64gb SD card in the Tab S for storing games on.