Samsung Conquer 4G
While I wouldn't call the device a "budget phone" it does manage to hang somewhere in between mid-level and high-end. Lets start with some of the specs. The phone features a smaller 3.5-inch HVGA display, 3.2MP rear facing camera with a 1.3MP front facing camera, Android 2.3 Gingerbread with Sprint ID, and a 1GHz processor.
Oh, and as the name suggests, it's compatible with Sprint's 4G network (where available).