Samsung seems to have had GPS antenna issues with various devices dating back to the old Moment. I think I had to have that one swapped 5X (maybe it was 3? who remembers) to finally get a dependable GPS. My wife's et4g (SII) GPS never worked particularly well either. I've seen no evidence here that this exists with the S3, S4 or Note lines, so maybe Samsung figured the problem (assembly? Parts sourcing?) out. The note 2 was the first Samsung device I considered buying since the Moment specifically because of all the GPS issues I experienced.