I am in the market for a Samsung note 10.1 tablet I don't want a new one as I believe they are over priced. I am looking at refurbished but I don't know how you can tell the difference between a 1st generation and newer generations. My granddaughter has a first generation and she is slightly disappointed but being on a budget that's all she could afford. I have a kindle fire HD and 4 desk top computers networked with double screens on all and 1 laptop which is very disappointing for battery time. I have seen a comparison about the jell bean and ice cream sandwich operating systems but not the generation gap, could use some help.