Impedance levels vary (24 Ohms vs NA), which can affect compatibility and audio output when used with different devices. If you're comparing Philips SHB4000-00 and boAt Airdopes 381 Sunburn Edition, both models offer a strong combination of sound performance, comfort, and modern wireless features. There is a noticeable difference in weight (71 g vs 40 Gm), which may affect comfort during extended use. The frequency response differs (20 Hz-20,000 Hz vs 20 Hz - 20000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. Battery life varies between the two (Talktime : 9 Hrs, Standby Time : 200 Hrs, Music Time : 9 Hrs vs 4 Hours), which affects how long you can use them on a single charge. From a usability standpoint, both models provide a reliable and premium headphone experience. Philips SHB4000-00 uses Bluetooth 3.0+EDR while boAt Airdopes 381 Sunburn Edition supports Bluetooth V5.0 + EDR, which can impact connectivity stability and efficiency. Philips SHB4000-00 and boAt Airdopes 381 Sunburn Edition offer different noise cancellation capabilities (Yes vs NA), which can impact how effectively they block external noise. The driver size differs between the two (32 mm vs 7 mm), which can influence sound depth, bass response, and overall audio clarity.

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