Battery life varies between the two (16 hrs vs 32 Hours), which affects how long you can use them on a single charge. JBL J56BT uses Bluetooth 3.0 while Nokia P3802A supports Bluetooth 5.1, which can impact connectivity stability and efficiency. The driver size differs between the two (40 mm vs 12.5 mm), which can influence sound depth, bass response, and overall audio clarity. JBL J56BT and Nokia P3802A are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. JBL J56BT and Nokia P3802A offer different noise cancellation capabilities (No vs Hybrid Active), which can impact how effectively they block external noise. There is a noticeable difference in weight (NA vs 57 gm), which may affect comfort during extended use. From a usability standpoint, both models provide a reliable and premium headphone experience. Impedance levels vary (NA vs 32 ohm), which can affect compatibility and audio output when used with different devices. The frequency response differs (20 - 20,000 Hz vs 20 Hz to 20000 kHz), which can influence how well the headphones reproduce lows, mids, and highs.

Verdict: Choosing between JBL J56BT and Nokia P3802A depends on whether you value better sound, longer battery life, or enhanced features.