The seven inch now have 16 GB of memory better display and longer battery the 8 inch have better ram 16 GB then amazon does sell a 12 inch as well and the 16 GB is more then the iPad and you can get 64 Gbas well on a kindle and there SD card compatible and they have I think 1.5 GB of ram on the 8 inch when the I pad has 1 GB of ram