The driver size differs between the two (NA vs 6 mm), which can influence sound depth, bass response, and overall audio clarity. Impedance levels vary (24 ohms vs 16 ohm), which can affect compatibility and audio output when used with different devices. There is a noticeable difference in weight (230 g vs 48.5 gm), which may affect comfort during extended use. Sennheiser RS-120 and boAt TRebel Airdopes 441 Pro offer different noise cancellation capabilities (No vs CVC), which can impact how effectively they block external noise. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. Battery life varies between the two (20 - 25 hrs vs 5 Hours), which affects how long you can use them on a single charge. From a usability standpoint, both models provide a reliable and premium headphone experience. Sennheiser RS-120 and boAt TRebel Airdopes 441 Pro are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. The frequency response differs (22 - 19500 Hz vs 20 Hz - 20000 KHz), which can influence how well the headphones reproduce lows, mids, and highs.

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