The driver size differs between the two (NA vs 53 mm), which can influence sound depth, bass response, and overall audio clarity. There is a noticeable difference in weight (290 g vs 235 GM), which may affect comfort during extended use. Beyerdynamic DT 990Edition and Audio Technica ATH-AD500X offer different noise cancellation capabilities (NA vs Sound Isolation), which can impact how effectively they block external noise. Beyerdynamic DT 990Edition and Audio Technica ATH-AD500X are premium wireless headphones designed to deliver high-quality sound along with advanced features like noise cancellation and long battery life. In general, both options are suitable for everyday use including music, calls, travel, and work-from-home scenarios. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. The frequency response differs (5 - 35.000 Hz vs 5Hz - 25KHz), which can influence how well the headphones reproduce lows, mids, and highs. Impedance levels vary (600 ohm vs 48 ohm), which can affect compatibility and audio output when used with different devices. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel.

Verdict: Both headphones offer strong performance, and the right choice depends on your priorities such as battery life, comfort, and noise cancellation.