So I ran some tests on the Speedtest app. Here are the results. These are the lowest to highest results
R+ / Sprint: Ping 47 - 58. Down 5 - 7.6. Up 1.6 - 3.6
FreedomPop Global SIM: Ping 372 - 376. Down 4 - 4.7. Up 1.3.
FreedomPop Domestic SIM: Ping 69. Down 21.2 - 30.4. Up 10.5 - 13.3
MintSIM - to be tested.