Samsung 103B vs boAt Immortal 121 Hulk Edition – 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.

Key Differences

The frequency response differs (2400 MHz - 2480 MHz vs 20 Hz - 20000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. Battery life varies between the two (5 Hours vs 10 / 30 Hours), which affects how long you can use them on a single charge. If you're comparing Samsung 103B and boAt Immortal 121 Hulk Edition, both models offer a strong combination of sound performance, comfort, and modern wireless features. Both models feature noise cancellation, helping reduce background noise for a more immersive listening experience. Impedance levels vary (160 ohm vs NA), which can affect compatibility and audio output when used with different devices. There is a noticeable difference in weight (19 gm vs 45 Gm), which may affect comfort during extended use. The driver size differs between the two (NA vs 10 mm), which can influence sound depth, bass response, and overall audio clarity. From a usability standpoint, both models provide a reliable and premium headphone experience. Samsung 103B uses Bluetooth 4.2 while boAt Immortal 121 Hulk Edition supports Bluetooth 5.3, which can impact connectivity stability and efficiency.

Verdict: Both models are competitive, and your decision should be based on your usage needs and preferred features.

Top Differences

Battery Life: 5 Hours vs 10 / 30 Hours
Driver Size: NA vs 10 mm
Bluetooth: 4.2 vs 5.3
Weight: 19 gm vs 45 Gm
Impedance: 160 ohm vs NA

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Key Differences

Top Differences