Impedance levels vary (40 ohm vs 32 ohm), which can affect compatibility and audio output when used with different devices. The frequency response differs (5 - 25,000 Hz vs 20 Hz - 20000 kHz), which can influence how well the headphones reproduce lows, mids, and highs. The driver size differs between the two (40 mm vs 50 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 (313 g vs 410 gm), which may affect comfort during extended use. If you're comparing Sony NWZ WH505-B and JBL Quantum 800, both models offer a strong combination of sound performance, comfort, and modern wireless features. Sony NWZ WH505-B and JBL Quantum 800 offer different noise cancellation capabilities (NA vs Active), which can impact how effectively they block external noise. Overall, both headphones are feature-rich and cater to users looking for a combination of sound quality, comfort, and wireless convenience. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel.

Verdict: Choosing between Sony NWZ WH505-B and JBL Quantum 800 depends on whether you value better sound, longer battery life, or enhanced features.