There is a noticeable difference in weight (57 Gm vs 205 Gm), which may affect comfort during extended use. Overall, both headphones are feature-rich and cater to users looking for a combination of sound quality, comfort, and wireless convenience. The driver size differs between the two (11 mm vs 40 mm), which can influence sound depth, bass response, and overall audio clarity. 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. 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 1 supports Bluetooth 5.0+EDR, which can impact connectivity stability and efficiency. Realme Buds Air 3S and Zebronics Zeb-Duke 1 are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. Realme Buds Air 3S and Zebronics Zeb-Duke 1 offer different noise cancellation capabilities (AI ENC vs NA), which can impact how effectively they block external noise. Battery life varies between the two (30 Hours vs 34 Hours), which affects how long you can use them on a single charge.

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