Battery life varies between the two (6 Hours vs 40 Hours), which affects how long you can use them on a single charge. There is a noticeable difference in weight (NA vs 45 Gm), which may affect comfort during extended use. Impedance levels vary (16 ohm vs NA), which can affect compatibility and audio output when used with different devices. Both models provide a wide frequency range, delivering a balanced audio experience across different types of content. Overall, both headphones are feature-rich and cater to users looking for a combination of sound quality, comfort, and wireless convenience. boAt Rockerz 255R and boAt Immortal 128 are premium wireless headphones designed to deliver high-quality sound along with advanced features like noise cancellation and long battery life. boAt Rockerz 255R uses Bluetooth 4.1 while boAt Immortal 128 supports Bluetooth 5.3, which can impact connectivity stability and efficiency. Both headphones are equipped with capable drivers that deliver balanced sound output suitable for music, calls, and entertainment. boAt Rockerz 255R and boAt Immortal 128 offer different noise cancellation capabilities (No vs NA), which can impact how effectively they block external noise.

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