LG Thrive and Phoenix Cell Phone are both variants of LG Optimus One. Thay are both customized for AT&T and will release on the same day, April 17. Both handsets are basically identical. They both feature Android 2.2 platform with 600 MHz processor. Integrate a 3.2 inches HVGA touchscreen to display. And support a 3.2 megapixel camera of taking pictures. Support GPS, 2GB memory card pre-installed, and what’s more unlimited WiFi usage on the entire national AT&T WiFi Hot Spot network.
The difference is that the LG Thrive Cell Phone is prepaid. It is AT&T’s first prepaid smartphone. And meanwhile the Cell Phone is postpaid and it is in dark blue color differing from Thrive. You could get a LG Thrive Cell Phone at $179.99 for contrace-free. AT&T is introducing a new prepaid data package with the LG Thrive Cell Phone, $25 for 500MB of data, $15 for 100MB of data, or $5 for 10MB. But for a LG Phoenix Cell Phone its price tag is $49.99 with a two-year agreement. The customer could conveniently choice the postpaid or prepaid as they like. 
via bgr