Key Differences

The driver size differs between the two (NA vs 40 mm), which can influence sound depth, bass response, and overall audio clarity. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. There is a noticeable difference in weight (NA vs 191 gm), which may affect comfort during extended use. Koss UR20 and Philips SHB3175BK/00 offer different noise cancellation capabilities (NA vs Passive), which can impact how effectively they block external noise. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. Impedance levels vary (32 Ohms vs 32 ohm), which can affect compatibility and audio output when used with different devices. From a usability standpoint, both models provide a reliable and premium headphone experience. The frequency response differs (30 Hz to 20000 Hz vs 8 Hz - 21500 kHz), which can influence how well the headphones reproduce lows, mids, and highs. If you're comparing Koss UR20 and Philips SHB3175BK/00, both models offer a strong combination of sound performance, comfort, and modern wireless features.

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