boAt Rockerz 255 Pro and boAt Rockerz 518 are premium wireless headphones designed to deliver high-quality sound along with advanced features like noise cancellation and long battery life. In general, both options are suitable for everyday use including music, calls, travel, and work-from-home scenarios. boAt Rockerz 255 Pro and boAt Rockerz 518 offer different noise cancellation capabilities (No vs NA), which can impact how effectively they block external noise. boAt Rockerz 255 Pro uses Bluetooth 5.0 while boAt Rockerz 518 supports Bluetooth 4.1, which can impact connectivity stability and efficiency. The frequency response differs (20 Hz - 20000 Hz vs 20 Hz - 20KHz), which can influence how well the headphones reproduce lows, mids, and highs. The driver size differs between the two (10 mm vs 50 mm), which can influence sound depth, bass response, and overall audio clarity. Battery life varies between the two (6 Hours vs 20 Hours), which affects how long you can use them on a single charge. There is a noticeable difference in weight (26 gm vs 230 GM), which may affect comfort during extended use. Impedance levels vary (16 ohm vs 32 ohm), which can affect compatibility and audio output when used with different devices.

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