johno1234:
The only thing I dislike about XM4s is that they press on the arms of my glasses and after a while that gets uncomfortable. The ANR and the sound is bliss. The microphone works very well, which is a bonus.
The sound quality of the Mic in the XM4 consistently gets panned I thought?
Apparently, the cups of the XM5 are noticeably more compliant and soft so that may help with your glasses potentially.