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To say I’m familiar with Sony’s 1000X line of headphones would be an understatement. I’ve tested every pair thus far, except the OG: the MDR-1000X. With each successive model, the company managed to add new features, develop better technology and expand the sonic capabilities of its flagship headphones. And with each new release, Sony kept its spot atop our best wireless headphones list.

This time around, Sony made us wait longer than usual. The first three sets of 1000X headphones each arrived a year apart. Then it was two years between the WH-1000XM3 and WH-1000XM4, perhaps delayed in part by the COVID pandemic, and then nearly two more before the redesigned WH-1000XM5 debuted. We’re three years out from that last model and today Sony is finally revealing the follow-up: the WH-1000XM6 ($450).

The extended interval is understandable once you consider the number of updates Sony has included to overhaul its pride and joy. There’s a new processor, more microphones, improved active noise cancellation (ANC), refined design and a retuned sound platform. Those changes join the long list of features Sony has amassed on the 1000X line over the years, a number of which automatically adapt when enabled, and many that provide great convenience in daily use. Other companies may have surpassed Sony in audio quality (at least until now), but none of the competition offers a collection of tools that even comes close to the WH-1000XM6

Design updates

At first glance, the WH-1000XM6 might not look much different from the M5, but there are some notable tweaks that improve comfort and storage. First, there’s a wider, asymmetrical headband that makes these headphones even easier to wear for long periods of time. The previous model was already lightweight, and that continues here. Together with the new headband, it provides a comfy fit that beats every other wireless headphone

Next, Sony returned to its folding design that older 1000X models used to have. With recent models, the company opted to just let the ear cups rotate before the headphones went in the case. They still do that, but they also fold in for easier storage. Due to this change, the company designed a smaller case, and instead of a zipper, Sony chose a magnetic closure.

One complaint I have about the design is how the ear cups rotate. When you take the WH-1000XM6 off, the cups rotate inside up to lay flat. To me, it should be the opposite, with the ear pads flipping down, because that’s how you’re going to put them in the case. This is a change from the M5, where the ear cups turn in what I’d consider the correct way, which makes this switch an even more confounding choice for this new model.

Sony mostly kept the controls on the WH-1000XM6 the same, save for a couple of small revisions. First, the company still uses a mix of physical buttons and touch panels on the outside of each ear cup. With the former, the only two options there are power (which doubles as Bluetooth pairing) and the noise control button that cycles through ANC, ambient sound and off.

That power button was redesigned so it’s now larger, round and concave. This makes it easier to find by touch and differentiates it from the noise control button. What’s more, Sony has added the ability for users to mute/unmute the microphones on the M6 during calls by double pressing the noise control button. This is handy when you don’t want to reach for your phone or keyboard during a voice or video chat.

Improved sound quality

The 1000X line has never been a slouch when it comes to sound quality, and Sony has made strides to continually improve audio performance over the years. With the WH-1000XM6, the company made changes in three areas to further boost the sound profile. First, Sony developed new drivers for the M6, which it says deliver “richer details and clearer vocals.” That’s due to what the company describes as smoother, extended high frequency reproduction created by perforations in the driver’s voice coil. And there’s better overall balance in the sound too, thanks to a more rigid dome for these components.

New chip, more mics and a dash of AI

Inside the WH-1000XM6, the star of the show is the new QN3 processor. Sony says it’s seven times faster than the QN1 used in the M5, a chip that first debuted on the WH-1000XM3 in 2018. Given that’s the main power behind noise cancellation, it was definitely time for an update.

With the QN3, Sony was able to add four additional microphones for its ANC setup, bringing the total on the 1000XM6 to 12. More mics means the company can more effectively detect and block noise. Alongside the new hardware, Sony upgraded the Auto NC Optimizer on the M5 to what it now calls the Adaptive NC Optimizer on the M6. This technology accounts for changes in fit and air pressure, automatically adapting the ANC coverage as needed. What’s more, the company says the M6 can block more mid-to-high-range frequencies than the M5, putting all of that power to good use.

There’s a noticeable improvement in ANC performance on the M6 — it’s not just marketing hype. I can easily tell the headphones are blocking more background noise than their predecessor, which isn’t always the case across 1000X generations. Particularly with human voices, this model does a better job of reducing the sound of chatty neighbors in the office than much of the competition. Even though it doesn’t entirely silence them, this still constitutes an upgrade in performance. The company has been giving Bose a run for its money for a while now, and the M6 further cements the fact the noise-cancelling arms race is closer than ever.

Like it did on the M5, Sony employs AI-based noise reduction on the M6 to reduce background noise during calls. The company says it trained its model on 500 million voice samples so the system can properly extract the user’s voice. What’s more, Sony now utilizes two additional microphones for voice performance (with a smidge more AI on them) that are better positioned for speech pickup.

In practice, call performance is a mixed bag. First, the M6 does an excellent job of blocking background noise. It rendered a loud fan completely silent during one of my tests. However, that processing impacts overall clarity, so you won’t sound nearly as good as you do in quieter locations. Plus, the results in noiseless conditions aren't pristine, but it’s good enough to get the job done for most call scenarios.

Sony brought back the convenient automation features that have made its flagship headphones the best option for years. Adaptive Sound Control can automatically adjust settings based on activity or location, like when you arrive at the office or when you’re out for a walk. Ambient sound still has pleasant, natural quality and is helpful to have on during calls. Speak-to-Chat continues to reduce the volume and activates that transparency mode when it detects your voice, though it’s still far too easily duped by coughs and when you clear your throat. You can also use head gestures to accept (nod) or reject calls (shake). There’s plenty more, but suffice it to say Sony is still ahead of the pack for the sheer volume of features it packs into its 1000X headphones.

Battery life

One of the few things that’s unchanged on the WH-1000XM6 is battery life. Just like the M5, this model offers up to 30 hours of use with ANC on or up to 40 hours with it off. The quick charge function is also the same: three minutes gives you three hours. I had no problem hitting these stated figures during my tests, which were primarily conducted with ANC on as well as Sony’s DSEE Extreme audio upscaling enabled. I would occasionally switch to transparency mode for calls, but 80 percent of the time I was in noise-blocking mode. After 25 hours of use, I still have 50 percent left in the tank.