I have the S2 and my fiance just bought the ZTE warp 4g. I have 16gb of internal storage she has 4. The screen is like .20 smaller on hers. DIFFERENCE....we have 4g lte in our area and my S2 will only work with wimax. She does not care...Should I trade her or am I taking a big step down just to get 4g. Need some advise. Thanks.