If you're comparing Realme Buds Air 3S and Zebronics Zeb-Duke, both models offer a strong combination of sound performance, comfort, and modern wireless features. From a usability standpoint, both models provide a reliable and premium headphone experience. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. The frequency response differs (115 HZ To 20000 KHz vs 20 Hz - 20000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. The driver size differs between the two (11 mm vs 40 mm), which can influence sound depth, bass response, and overall audio clarity. Realme Buds Air 3S and Zebronics Zeb-Duke offer different noise cancellation capabilities (AI ENC vs NA), which can impact how effectively they block external noise. Impedance levels vary (NA vs 32 ohm), which can affect compatibility and audio output when used with different devices. Realme Buds Air 3S uses Bluetooth 5.3 while Zebronics Zeb-Duke supports Bluetooth 5.0, which can impact connectivity stability and efficiency. There is a noticeable difference in weight (57 Gm vs 210 Gm), which may affect comfort during extended use.

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