Do a quick visit to gsmarena.com.
To the upper right hand corner, you will see a search box.. just search for the ultra there.. you will see that the differences just lie on their network operating frequency (at least that's all i see :what
Other than that, it is pretty much the same...
I admit, the price difference between the LTE and hspa+ version is not worth it.
But here at my place, our network provider is pretty much forgetting their HSPA network and just dont want to fix issues anymore.. they are more focused in upgrading and stabilizing their LTE infrastructure so I'm just going to go with the flow and buy the LTE version..
"Sent from my refrigerator"