Is the U, the same thing as the S essentially? Have an Optimus U and can't find too much on it
LG has the Optimus series of phones. The letter after it usually is specific for a certain carrier. S is Sprint T is Tmobile Vortex is Verizon. U and all the others are for some other carrier. Pretty much the same phone though.
It's very similar to the S. Check out the following review that points out a few differences:
LG Optimus U Review (U.S. Cellular) - Smartphones - CNET Reviews
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