To start with, when you buy a phone from one of the Asian online stores, you'll find that most will not work in North America as North America has different 3G and LTE frequencies in use than the rest of the world. Many cases the phones will work in Asia and Europe. If you bought a phone with a Mediatek CPU, it will not typically be compatible in North America.
For the Vernee
GSM: Not Supported
3G: Not supported (850/1900MHz required)
LTE: Not Supported. Requires Band 4 which is both 1700MHz (Uplink) and 2100MHz (Downlink) frequencies