Unix CHARM vs boAt Airdopes 291 – Detailed Specs Comparison (2026)

Sweatproof & Extra Bass. Music Time Upto 20 Hours. Active Voice Assistant Instantly. Rich Sound With Deep Bass : Experience high-fidelity audio with enhanced bassâ€”perfect for music lovers. ENC For Clear Calls : Environmental Noise Cancellation ensures clear and professional-grade communication on the go. Voice Changer with 4 Modes : Unique voice modulation feature makes calls fun and functional with multiple voice effects. Magnetic Earbuds & Sweat Resistant : Tangle-free storage and durable build make it perfect for workouts and outdoor use. Up To 48 Hours Of Playtime : Long-lasting battery supports non-stop entertainment, work, or travel without frequent charging.

It is IPX5 rated for resistance against water and sweat to provide a carefree listening experience. It supports Advanced Audio Coding for a seamless audio bliss. TWS Airdopes 281 offers true wireless experience with the latest Bluetooth v5.0. It helps to stay Plugged Into Nirvana for long with up to 3.5 hours of sound per charge. Its power-packed 420mAh charging case ensures 4 times the charge for the earbuds. The TWS Airdopes 291 come equipped with 6mm Titanium alloy drivers for immersive, HD sound.

Key Differences

The driver size differs between the two (6 mm vs 12.5 mm), which can influence sound depth, bass response, and overall audio clarity. boAt Airdopes 291 and Unix CHARM offer different noise cancellation capabilities (CVC vs NA), which can impact how effectively they block external noise. There is a noticeable difference in weight (8 gm vs 100 GM), which may affect comfort during extended use. Impedance levels vary (22 ohm vs 20 Ohms), which can affect compatibility and audio output when used with different devices. The frequency response differs (20 Hz - 20000 Hz vs 20Hz - 20KHz), which can influence how well the headphones reproduce lows, mids, and highs. From a usability standpoint, both models provide a reliable and premium headphone experience. Battery life varies between the two (3.5 Hours vs 48 Hours), which affects how long you can use them on a single charge. boAt Airdopes 291 uses Bluetooth 5.0 while Unix CHARM supports Bluetooth 5.2, which can impact connectivity stability and efficiency. If you're comparing boAt Airdopes 291 and Unix CHARM, both models offer a strong combination of sound performance, comfort, and modern wireless features.

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: 3.5 Hours vs 48 Hours
Noise Cancelling: CVC vs NA
Driver Size: 6 mm vs 12.5 mm
Bluetooth: 5.0 vs 5.2
Weight: 8 gm vs 100 GM

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Key Differences

Top Differences