boAt Rockerz 255F and boAt Immortal 121 are premium wireless headphones designed to deliver high-quality sound along with advanced features like noise cancellation and long battery life. From a usability standpoint, both models provide a reliable and premium headphone experience. Both headphones are equipped with capable drivers that deliver balanced sound output suitable for music, calls, and entertainment. boAt Rockerz 255F and boAt Immortal 121 offer different noise cancellation capabilities (CVC vs NA), 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 (6 Hours vs 10 / 40 Hours), which affects how long you can use them on a single charge. There is a noticeable difference in weight (30 gm 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. boAt Rockerz 255F uses Bluetooth 4.1 while boAt Immortal 121 supports Bluetooth 5.3, which can impact connectivity stability and efficiency.

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