^ That chart from GSMArena has quite a few typos. For example, the 1st "Oppo Find 7 (headphones)" should probably be "OnePlus One (headphones)". Here is my summary from reading that chart: audio measurement of OnePlus One is slightly worse than S5, G3 or One/M8 (with M8 being the best in that chart). OnePlus One's measurement seems highly similar to Oppo Find 7. Not sure about vs Find 7a, as 7a's crosstalk measurement seems to be a typo.
7/12/14 at 6:17am