The driver size differs between the two (53 mm vs 40 mm), which can influence sound depth, bass response, and overall audio clarity. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. From a usability standpoint, both models provide a reliable and premium headphone experience. Impedance levels vary (40 ohm vs 35 ohm), which can affect compatibility and audio output when used with different devices. If you're comparing Audio Technica ATH-AVC500 and Audio Technica ATH-AVA400, both models offer a strong combination of sound performance, comfort, and modern wireless features. There is a noticeable difference in weight (270 GM vs 240 GM), which may affect comfort during extended use. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. The frequency response differs (10Hz - 25KHz vs 18Hz - 25KHz), which can influence how well the headphones reproduce lows, mids, and highs. Both models feature noise cancellation, helping reduce background noise for a more immersive listening experience.

Verdict: Both models are competitive, and your decision should be based on your usage needs and preferred features.