OnePlus BT31B and boAt TRebel Rockerz 335 are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. Battery life varies between the two (8 Hours vs 30 Hours), which affects how long you can use them on a single charge. OnePlus BT31B and boAt TRebel Rockerz 335 offer different noise cancellation capabilities (No vs CVC), which can impact how effectively they block external noise. There is a noticeable difference in weight (30 gm vs 28 gm), which may affect comfort during extended use. The driver size differs between the two (NA vs 10 mm), which can influence sound depth, bass response, and overall audio clarity. In general, both options are suitable for everyday use including music, calls, travel, and work-from-home scenarios. OnePlus BT31B uses Bluetooth 4.1 while boAt TRebel Rockerz 335 supports Bluetooth 5.0, which can impact connectivity stability and efficiency. Impedance levels vary (NA vs 16 ohm), which can affect compatibility and audio output when used with different devices. The frequency response differs (20 Hz - 20000 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.