Based only on several informal YouTube comparison videos, only the OP3's camera seems to best the Axon 7. Other comparisons end up as a toss up or a win for the A7.
Originally Posted by
Stuie Bedubie + for the axon, great audio device, that's a biggie for me, and also high quality amoled screen, easier to view in sunlight.
The same YouTuber recently compared the OP3 and A7 displays in bright sunlight. He came away thinking that the OP3's was
slightly better than the A7's, but that's probably because the OP3 wallpaper had a giant white rectangle with "never settle" emblazoned on it in fat black print. Ignoring that rectangle (which you can probably pick out from 100 yards) the two screens looked equally readable but equally punked by the sun.