Overall, both headphones are feature-rich and cater to users looking for a combination of sound quality, comfort, and wireless convenience. Impedance levels vary (NA vs 32 ohm), which can affect compatibility and audio output when used with different devices. OnePlus Bullets Wireless Z and boAt Rockerz 400 PK Edition are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. The driver size differs between the two (9.2 mm vs 40 mm), which can influence sound depth, bass response, and overall audio clarity. OnePlus Bullets Wireless Z uses Bluetooth 5.0 while boAt Rockerz 400 PK Edition supports Bluetooth 4.1, which can impact connectivity stability and efficiency. There is a noticeable difference in weight (28 gm vs 118 Gm), which may affect comfort during extended use. OnePlus Bullets Wireless Z and boAt Rockerz 400 PK Edition offer different noise cancellation capabilities (No vs Passive), which can impact how effectively they block external noise. Both models provide a wide frequency range, delivering a balanced audio experience across different types of content. Battery life varies between the two (10 Hours vs 8 Hours), which affects how long you can use them on a single charge.

Verdict: Choosing between OnePlus Bullets Wireless Z and boAt Rockerz 400 PK Edition depends on whether you value better sound, longer battery life, or enhanced features.