Sennheiser HD 4.50 BTNC vs Audio-Technica ATH-M50xBT

The Sennheiser HD 4.50 BTNC are better headphones than the Audio-Technica ATH-M50xBT. The Sennheiser have a decent noise cancelling feature that the Audio-Technica lack and can connect to two devices simultaneously, which is convenient. However, the Audio-Technica have almost twice the battery life, a slightly better-balanced sound profile, a better microphone for calls, better wireless range, and are slightly more comfortable.