From a usability standpoint, both models provide a reliable and premium headphone experience. Both models feature noise cancellation, helping reduce background noise for a more immersive listening experience. Battery life varies between the two (10 / 40 Hours vs 10 / 30 Hours), which affects how long you can use them on a single charge. There is a noticeable difference in weight (37 Gm vs 45 Gm), which may affect comfort during extended use. Both headphones are equipped with capable drivers that deliver balanced sound output suitable for music, calls, and entertainment. Both models provide a wide frequency range, delivering a balanced audio experience across different types of content. boAt Immortal 171 and boAt Immortal 121 Hulk Edition are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices.
Verdict: Both headphones offer strong performance, and the right choice depends on your priorities such as battery life, comfort, and noise cancellation.