boAt Rockerz 255F and boAt Immortal 121 offer different noise cancellation capabilities (CVC vs NA), which can impact how effectively they block external noise. From a usability standpoint, both models provide a reliable and premium headphone experience. boAt Rockerz 255F uses Bluetooth 4.1 while boAt Immortal 121 supports Bluetooth 5.3, which can impact connectivity stability and efficiency. Both models provide a wide frequency range, delivering a balanced audio experience across different types of content. Both headphones are equipped with capable drivers that deliver balanced sound output suitable for music, calls, and entertainment. There is a noticeable difference in weight (30 gm vs 45 Gm), which may affect comfort during extended use. boAt Rockerz 255F and boAt Immortal 121 are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. Battery life varies between the two (6 Hours vs 10 / 40 Hours), which affects how long you can use them on a single charge. Impedance levels vary (16 ohm vs NA), which can affect compatibility and audio output when used with different devices.

Verdict: Choosing between boAt Rockerz 255F and boAt Immortal 121 depends on whether you value better sound, longer battery life, or enhanced features.