Key Differences

boAt Airdopes 138 uses Bluetooth 5.0+EDR while Unix UX-999 PRO 2 supports Bluetooth 5.1, which can impact connectivity stability and efficiency. There is a noticeable difference in weight (45 Gm vs 20 GM), which may affect comfort during extended use. Impedance levels vary (NA vs 32 Ohms), which can affect compatibility and audio output when used with different devices. boAt Airdopes 138 and Unix UX-999 PRO 2 are premium wireless headphones designed to deliver high-quality sound along with advanced features like noise cancellation and long battery life. Both headphones are equipped with capable drivers that deliver balanced sound output suitable for music, calls, and entertainment. The frequency response differs (20 Hz - 20000 Hz vs 20Hz - 20KHz), which can influence how well the headphones reproduce lows, mids, and highs. Battery life varies between the two (3 / 12 Hours vs 40 Hours), which affects how long you can use them on a single charge. 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.

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