Personally I compared about 15 devices in Excel and then did a close comparison between s4 mini and LG G2. Ordered both and I think LG G2 Mini will win for me. Check inside-Handy for the specs.
edit: Nope S4 mini did the race. 1) The G2 Mini is bigger while not offering more space on screen (S4 mini has hardware keys for menu/home/back) and 2) Camera quality of G2 Mini is noticably worse, there are edgy/blurry areas in images which S4 mini don't have
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