boAt Immortal 121 Hulk Edition vs boAt Airdopes 452 – Key Differences & Best Choice (2026)

1 Year warranty. With an IPX4 rated water resistant build, one can stay immersed in the zone in a carefree manner. Immortal 121 provides a total playtime of up to 40 hours including 10 hours of playtime per charge. Set your surrounding vibes the way you want along with the earbuds equipped with the blazing LEDs. Our ASAP Charge tech helps the earbuds go garner up to 180 minutes of playtime in just 10 minutes. Itâ€™s here to enthral you with the boAt Signature Sound experience while you conquer different levels on your gaming missions. It comes equipped with ENx tech enabled quad mics for a superior calling experience as you get to be heard better every time. Itâ€™s time to hit your gaming zone with the TWS gaming earbuds, Immortal 121 that come equipped with BEAST Mode to offer super low latency of 40ms.

1 Year warranty. IPX4 water splashes and sweat for long-term use. The unbeatable boAt immersive sound shines through no matter what you are playing on Airdopes 452. It offers a total playback of 20 hours with the carry case, including with up to 4 hours of earbudsâ€™ playtime. It has ASAP Charge technology via which the earbuds can get charged for up to 60 min playback in just 10 min. You can command playback, attend calls and summon default voice assistant with ease via easy to operate touch controls. The mics come equipped with ENx technology that helps receive your voice precisely and lets you be heard clearly over voice calls. Itâ€™s time to keep every distraction at bay with the BEAST Mode that offers low latency infused with spatial 3D audio for peerless gaming sessions. It comes with Bluetooth v5.2 for connectivity and our IWP technology which lets you seamlessly pair the earbuds as soon as you open the case lid.

Key Differences

From a usability standpoint, both models provide a reliable and premium headphone experience. Battery life varies between the two (20 Hours vs 10 / 30 Hours), which affects how long you can use them on a single charge. There is a noticeable difference in weight (50 Gm vs 45 Gm), which may affect comfort during extended use. Both models feature noise cancellation, helping reduce background noise for a more immersive listening experience. Both models provide a wide frequency range, delivering a balanced audio experience across different types of content. boAt Airdopes 452 and boAt Immortal 121 Hulk Edition are premium wireless headphones designed to deliver high-quality sound along with advanced features like noise cancellation and long battery life. boAt Airdopes 452 uses Bluetooth 5.2 while boAt Immortal 121 Hulk Edition supports Bluetooth 5.3, which can impact connectivity stability and efficiency. The driver size differs between the two (6 mm vs 10 mm), which can influence sound depth, bass response, and overall audio clarity.

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

Top Differences

Battery Life: 20 Hours vs 10 / 30 Hours
Driver Size: 6 mm vs 10 mm
Bluetooth: 5.2 vs 5.3
Weight: 50 Gm vs 45 Gm

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Key Differences

Top Differences