Sony has released its latest flagship headphones, the WH-1000XM6, building on the success of previous models like the popular WH-1000XM4. For owners of the still-capable XM4, the question arises: Do the improvements in the new WH-1000XM6 justify the upgrade cost? This report examines the key differences to help you decide.
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The Sony WH-1000XM6 bring significant enhancements in noise cancellation, design, and audio quality compared to the WH-1000XM4. Side-by-side testing reveals that the newer model refines core features and reintroduces user-requested design elements, offering a noticeable step up for those seeking the best performance.
Unrivaled Noise Cancellation
Noise cancellation is a core strength of the Sony 1000X series, and the WH-1000XM6 set a new standard. While the XM4 headphones were highly regarded for their ability to suppress low-frequency noise and dull harsh sounds, the XM6 model takes this to an unprecedented level.
In testing environments ranging from busy streets to public transport and household chores, the XM6 consistently delivered a deeper sense of silence. This superior performance is largely attributed to a new, more powerful QN3 HD noise-cancelling processor working in tandem with 12 microphones – five more than the seven found in the XM4.
This advanced technology allows the XM6 to actively phase out ambient sounds more effectively than their predecessor. While the XM4 offered excellent noise cancellation at their launch, they have since been matched or surpassed by newer competitors, including Sony’s own XM5 and the Bose QuietComfort Ultra Headphones. The XM6, however, currently stand out among the best noise cancelling headphones for pure noise-stopping capability, making the difference immediately apparent upon upgrading.
Sony WH-1000XM6 and Sony WH-1000XM4 headphones compared side-by-side
Design Refinements and Foldability’s Return
One notable difference between the XM4 and their immediate successor, the XM5, was the change in design, specifically the removal of the foldability feature. The Sony WH-1000XM6 cleverly merges the best of both worlds, combining the sleek, streamlined look of the XM5 with the practical, foldable design of the XM4.
For XM4 owners who valued the convenience of folding their headphones for easy storage in a bag, this return is a significant advantage. Sony has also reinforced the hinges on the XM6 with metal, enhancing durability compared to the XM4’s design. A new magnetic case further improves portability and ease of use over the XM4’s zip-up version.
Beyond foldability, the XM6 adopt the more premium aesthetic of the XM5, featuring a slimmer, more seamless, and rounded profile. The headband is also improved, appearing less plasticky, feeling smoother, wider, and offering enhanced comfort. The exterior boasts a subtle, paper-like matte texture, contributing to a cleaner and more refined physical appearance. This combination makes the XM6 a tangible upgrade in terms of build and design.
Sony WH-1000XM6 headphones positioned against a textured surface, highlighting the design
Elevated Audio Performance
While the Sony WH-1000XM4 headphones received praise for their clean, detailed sound and punchy bass driven by 40mm drivers (similar to the Sony WH-1000XM3), the XM6 push audio quality further. Developed in collaboration with mastering engineers, the XM6 offer a more balanced sound profile directly out of the box.
The audio signature of the XM6 presents a refined mix of powerful yet controlled bass, rich mid-range frequencies, and energetic highs, resulting in a more even response across the spectrum. The inclusion of a ‘noise shaper’ also enhances digital-to-analog conversion, reducing distortion from sudden sound changes for a more controlled listening experience.
A key improvement in the XM6 is the expanded and more nuanced soundstage compared to the XM4. This provides individual instruments and vocal elements with greater separation and room to breathe, creating a more open, layered, and immersive sound. A new feature, 360 Reality Audio Upmix, accessible via the Sony Sound Connect app, can convert standard stereo signals into a more expansive, three-dimensional spatial format, particularly beneficial for movies.
The XM6 retain popular sound features from the XM4, such as DSEE Extreme upscaling for lower-quality audio files, LDAC support for ‘hi-res’ Bluetooth streaming, and customizable EQ settings. The XM6 even enhance the EQ control with a 10-band equalizer. Coupled with the improved noise cancellation keeping distractions at bay, the XM6 deliver a superior and more engaging listening experience overall. These qualities position them firmly among the best wireless headphones available.
A person folding the earcups of the Sony WH-1000XM6 headphones
Conclusion: A Worthwhile Upgrade?
For owners of the Sony WH-1000XM4, the WH-1000XM6 offer compelling reasons to consider upgrading. The improvements in class-leading noise cancellation are significant, providing a more complete isolation from external sounds. The design benefits from the return of foldability, combined with enhanced durability and a more premium aesthetic. Audio quality sees refinements with a more balanced sound profile, wider soundstage, and new immersive features.
While the XM4 remain capable headphones, the WH-1000XM6 represent a substantial evolution across their core functions, making the upgrade worthwhile for those prioritizing the best possible performance in noise cancellation, a refined design with portability, and an elevated listening experience. For a detailed look at the new model, read our full Sony WH-1000XM6 review.
