The driver size differs between the two (NA vs 10 mm), which can influence sound depth, bass response, and overall audio clarity. The frequency response differs (17 - 23,000 Hz vs 20 Hz - 20000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. Overall, both headphones are feature-rich and cater to users looking for a combination of sound quality, comfort, and wireless convenience. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. There is a noticeable difference in weight (15g vs 16 Gm), which may affect comfort during extended use. Sennheiser CX 275s and Zebronics Zeb-Buds C are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. Impedance levels vary (16 ohms vs 16 ohm), which can affect compatibility and audio output when used with different devices. Sennheiser CX 275s and Zebronics Zeb-Buds C offer different noise cancellation capabilities (No vs NA), which can impact how effectively they block external noise.

Verdict: Choosing between Sennheiser CX 275s and Zebronics Zeb-Buds C depends on whether you value better sound, longer battery life, or enhanced features.