This really comes down completely to personal preference and individual physiology. The 440 are similar build to the 840. I personally find the 840 very comfortable (can wear them for hours at a time). Others have found the 840 to be unbearable for long listening periods. If you can't get to try them, and want a safer bet, the AD700 / A700 are extremely comfortable. The wing system makes me forget I'm wearing them (when I'm gaming).