Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. F&D Spiro and Zebronics Zeb-Hark offer different noise cancellation capabilities (Active vs NA), which can impact how effectively they block external noise. There is a noticeable difference in weight (60 Gm vs 11 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. Both models provide a wide frequency range, delivering a balanced audio experience across different types of content. Both headphones are equipped with capable drivers that deliver balanced sound output suitable for music, calls, and entertainment. F&D Spiro and Zebronics Zeb-Hark are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features.

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