Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. The frequency response differs (18 - 21000 Hz vs 5 - 25,000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. There is a noticeable difference in weight (204 g (without battery) vs 313 g), which may affect comfort during extended use. Impedance levels vary (32 ohms vs 40 ohm), which can affect compatibility and audio output when used with different devices. The driver size differs between the two (NA vs 40 mm), which can influence sound depth, bass response, and overall audio clarity. Sennheiser RS 180 and Sony NWZ WH505-B offer different noise cancellation capabilities (No vs NA), which can impact how effectively they block external noise. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. If you're comparing Sennheiser RS 180 and Sony NWZ WH505-B, both models offer a strong combination of sound performance, comfort, and modern wireless features. From a usability standpoint, both models provide a reliable and premium headphone experience.

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