The new Studio C 5+5 Android smartphone is available in both 3G and LTE versions, both priced below $100 USD and sporting 1 GB of memory, dual-SIM active, and a 5 MP front camera for great selfies.
http://www.notebookcheck.net/BLU-Products-announces-Studio-C-5-5-and-Studio-C-5-5-LTE.147239.0.html