In a market flooded with premium wireless earbuds, one pair keeps coming back to our ears above everything else — the Sony WF-1000XM4. Yes, Sony has since released the WF-1000XM5. Yes, Apple keeps pushing the AirPods Pro. But the XM4 occupies a sweet spot that very few earbuds have ever managed to hit: world-class noise cancellation, audiophile-grade sound, and a feature set so comprehensive it makes everything else feel like it’s missing something. Here’s our in-depth review — and why, even in 2026, these remain our absolute favourite.

Quick Specs at a Glance

Current price: Available on Amazon for as low as $130–$200 depending on deals — a significant drop from the original $279 launch price.

Design and Build Quality

The XM4 was a complete redesign from its predecessor. Sony ditched the wide, elongated shape of the XM3 and went with a rounder, more compact oval form that sits more naturally inside the ear. Each bud has a copper ring running along its edge — not just a design choice but also the housing for one of the ANC microphones — giving the earbuds a premium, distinctive look that stands out without being flashy.

The case is one of the most satisfying in the business. It’s 40% smaller than the XM3’s case, magnetically sealed, and supports both USB-C and Qi wireless charging — making it genuinely future-proof. The matte finish on both the buds and the case gives the whole package a tactile quality that feels worth the money.

You can read the full official spec sheet on Sony’s product page.

Sound Quality — Where the XM4 Truly Shines

This is where the Sony WF-1000XM4 separates itself from virtually every competitor. The 6mm driver — which features a 20% larger magnet and a new high-compliance diaphragm compared to the XM3 — produces sound that frankly has no business coming from something this small.

Bass is rich and present without ever becoming overbearing. The midrange is exceptionally detailed, making vocals and instruments feel three-dimensional. Treble extends well without becoming harsh. The overall signature is what audiophiles call “mature” — it’s tuned to sound good across every genre rather than boosted artificially for a first-impression wow factor that fades quickly.

The headline feature here is LDAC — Sony’s proprietary high-resolution Bluetooth codec that transmits audio at up to 990Kbps, compared to just 328Kbps for standard SBC. The XM4 was the first true wireless earbud to support LDAC, and for anyone streaming from Tidal, Qobuz, Amazon Music HD, or Sony’s own music platform, the difference is genuinely audible. Pair this with DSEE Extreme — Sony’s AI-powered audio upscaling that reconstructs compressed audio files to near-Hi-Res quality in real time — and you have an audio engine that simply doesn’t exist at this price in any other package.

For an independent verification of this audio performance, RTINGS.com’s technical measurements provide the most thorough objective analysis available.

Noise Cancellation — Still Best in Class

Active noise cancellation is the XM4’s trump card, and even three years after launch it remains among the finest available in any true wireless earbud.

The secret weapon is Sony’s V1 processor — a custom chip that integrates both the ANC processor and the Bluetooth SoC into a single unit for faster, more efficient noise processing. Combined with the polyurethane foam ear tips that conform to the shape of your ear canal (rather than silicone tips that leave gaps), the passive isolation is exceptional before the active cancellation even kicks in.

The result is a listening experience that blocks out low-frequency rumble from planes and trains, mid-frequency chatter from busy offices, and constant ambient noise from city streets with remarkable effectiveness. The ANC works adaptively — adjusting its intensity based on your environment automatically.

The Ambient Sound mode deserves equal praise. Unlike earlier Sony models that created an artificial, uncomfortable boost of ambient sound, the XM4’s transparency mode is so natural that you can wear these in conversation for hours without fatigue. It’s among the most realistic transparency implementations in any earbuds at any price.

TechRadar’s full review called it simply “very difficult to lay a glove on” as a complete package — a verdict we share completely.

Features — A Complete Package

Speak-to-Chat: The XM4 detects when you start speaking and automatically switches to Ambient Sound mode so you can have a conversation without touching the earbuds. It works reliably and is one of those features you don’t realise you need until you have it.

Multipoint Bluetooth: Added via firmware update after launch, multipoint allows you to connect to two devices simultaneously — switching seamlessly between your phone and laptop, for example, without manual re-pairing.

Voice Assistant: Full hands-free support for both Google Assistant and Amazon Alexa, activated by voice prompt without touching the buds.

Auto play/pause: Infrared sensors in each bud detect when you remove or insert them, pausing and resuming playback automatically.

Sony Headphones Connect app: One of the best companion apps in the business. Available for Android and iOS, the app offers granular EQ customisation, ANC level adjustment, touch control remapping, firmware updates, and access to Sony’s 360 Reality Audio spatial sound format.

Battery Life

Eight hours of continuous playback with ANC enabled is solid for daily use — it comfortably covers a full work day of background listening or a long-haul flight. Turn ANC off and that extends to 12 hours. The charging case adds another 16 hours, giving you 24 hours total. A quick 10-minute charge delivers around 60 minutes of playback, which is genuinely useful when you’re running out the door.

How Does It Compare to the Competition?

vs. Sony WF-1000XM5 ($299) The XM5 is smaller, lighter, and has marginally better noise cancellation courtesy of the newer V2 chip. But it launched at a $20 price premium over the XM4 — and now that the XM4 is widely available for $130–$200 on sale, the value equation tilts firmly toward the XM4 for most buyers. The XM5 is the better earbud, but the XM4 is the better purchase for the money. Tom’s Guide’s detailed comparison puts this into helpful context.

vs. Apple AirPods Pro 2 ($249) The AirPods Pro 2 are the better choice if you live entirely in the Apple ecosystem — the seamless device switching between iPhone, iPad, and Mac is genuinely effortless in a way Sony can’t match. But for Android users, or anyone who prioritises audio quality, LDAC support, and customisable EQ, the XM4 wins convincingly. SoundGuys’ comparison puts it plainly: Sony for Android, Apple for iPhone.

vs. Bose QuietComfort Earbuds II ($279) Bose arguably edges Sony on raw ANC performance in certain high-frequency ranges. But the Bose package lacks LDAC, has a larger case, and offers a less comprehensive app experience. For most people, Sony is the more complete package.

Who Should Buy the Sony WF-1000XM4?

Buy these if you:

• Use an Android phone and want the best wireless audio experience available
• Commute on public transport and need serious noise cancellation
• Stream Hi-Res audio and want LDAC support
• Want the best audio/feature combination under $200
• Work in noisy environments or open-plan offices

Consider alternatives if you:

• Own an iPhone and are deeply in the Apple ecosystem (AirPods Pro 2 may suit you better)
• Have smaller ears and find the XM4’s fit uncomfortable (the XM5 addressed this with a smaller form)
• Need the absolute latest and greatest regardless of price (look at the XM5)

The Sony WF-1000XM4 is the rare product that genuinely deserves its reputation. Three years after launch, in a category that moves at extraordinary speed, it remains one of the finest true wireless earbuds ever made. The combination of LDAC audio, world-class ANC, a brilliant companion app, and a feature set that still matches or beats most 2026 competitors — now available at a fraction of the original price — makes this one of the best value purchases in premium audio.

If you want the definitive earbuds buying guide for 2026, What Hi-Fi’s best wireless earbuds roundup is updated regularly and is our most trusted external reference. For the best current prices on the XM4, check Amazon, Best Buy, and Walmart — deals fluctuate but $150–$180 is consistently achievable.