Impedance levels vary (16 ohm vs NA), which can affect compatibility and audio output when used with different devices. Both models feature noise cancellation, helping reduce background noise for a more immersive listening experience. There is a noticeable difference in weight (14 Gm vs 15 Gm), which may affect comfort during extended use. 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. Both models provide a wide frequency range, delivering a balanced audio experience across different types of content. The driver size differs between the two (14 mm vs 10 mm), which can influence sound depth, bass response, and overall audio clarity. If you're comparing Zebronics Zeb-Bro+ 2 and Aiwa ESTM-51, both models offer a strong combination of sound performance, comfort, and modern wireless features. In general, both options are suitable for everyday use including music, calls, travel, and work-from-home scenarios.

Verdict: Choosing between Zebronics Zeb-Bro+ 2 and Aiwa ESTM-51 depends on whether you value better sound, longer battery life, or enhanced features.