Both headphones share a 40 mm driver and an identical frequency range of 20 Hz to 20,000 Hz, covering the full spectrum of human hearing. On paper, this suggests comparable raw audio reproduction capability. However, the hardware driving that output differs in one notable way: the Boult Audio Fluid X Pro is equipped with a neodymium magnet, while the Rockerz 650 Pro is not. Neodymium magnets typically deliver stronger, more focused magnetic fields, which can translate to tighter bass response and improved driver efficiency — though the actual audible impact depends heavily on the overall acoustic tuning.
The most decisive differentiator in this category is noise isolation. Both offer passive noise reduction by virtue of their closed-back, over-ear design. But the Fluid X Pro goes a significant step further with Active Noise Cancellation (ANC) — a feature the Rockerz 650 Pro entirely lacks. ANC uses microphones to actively counteract ambient sound waves, making a real, measurable difference in environments like commutes, offices, or flights where passive isolation alone falls short.
The Boult Audio Fluid X Pro holds a clear edge in this category. The combination of ANC and a neodymium magnet gives it meaningful technical advantages over the Rockerz 650 Pro for listeners who prioritize an immersive, distraction-free audio experience. The boAt is a reasonable choice for quieter environments, but for anyone frequently in noisy surroundings, the Fluid X Pro is the stronger option based strictly on these specs.