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Bluetooth 6.0: What You Need to Know About the Future of Wireless Headphones

Technologies

Bluetooth 6.0: What You Need to Know About the Future of Wireless Headphones

Bluetooth got a major upgrade, and it’s already showing up in phones and headphones. Here’s what to expect and what we’re still waiting for.

The Bluetooth Special Interest Group announced version 6.0 of the near-ubiquitous wireless technology in Sept. 2024, adding some major new features that aim to improve Bluetooth’s reliability, security, smoothness and efficiency. It might even get you a greater range between your headphones and phone, as well as longer battery life.

We’re finally seeing devices arrive with Bluetooth 6.0, including phones from Apple and Google, as well as headphones and earbuds. Here’s what you need to know about Bluetooth 6.0 and how it will affect wireless connectivity for years to come.

Main improvements of Bluetooth 6.0

Latency

Latency is the time between an audio signal being sent and when you actually hear it. The higher the latency, the more annoying it can be — think of when the sound lags behind the video in movies or games. Most Bluetooth (5.0 and newer) devices have latency somewhere between 50 to 100 milliseconds, depending on gear and configuration, which is noticeable to most people.

Bluetooth 6.0’s new isochronous adaptive layer, or ISOAL, allows devices to break up audio data into smaller chunks for quicker processing. In theory, this has the potential to reduce latency, and it’s possible that we might see latency under 10 milliseconds under ideal conditions, such as close range, no obstacles and no interference.

We expect that under real-world conditions, the majority of setups will operate at a latency of around 20 milliseconds, which would still represent a significant improvement over Bluetooth 5.x.

Location tracking and security

One of the new spec’s most buzzworthy features is called Channel Sounding, which provides a significant improvement in the accuracy of device location tracking. It relies on a back-and-forth exchange of data packets between connected devices and a combination of time stamps and frequency analysis, rather than the old, less accurate method of just measuring relative signal strength.

Channel Sounding is a boon for Apple’s Find My and its Google and Samsung equivalents, offering location accuracy down to approximately 10 centimeters, along with improved resistance to obstacles and interference. It also enables enhanced security for Bluetooth lock systems using a combination of encryption, randomization and location cross-referencing to ensure some random person isn’t unlocking your car or front door.

Power efficiency and pairing speed

The same features that reduce latency also help with power efficiency: Everything behaves intelligently to use more power for keeping audio and video in sync for things like gaming, and less power for less intensive applications like audiobooks. This flexibility is especially crucial for wireless earbuds, which require the most effective power management due to their compact size.

The process of scanning for nearby Bluetooth devices is also being upgraded, with decision-based advertiser filtering and monitoring. Advertising in this case doesn’t refer to selling you products. Basically, it’s a set of headphones broadcasting, «I’m a headset, and I’m nearby and ready to connect.»

Instead of constantly shouting, «Is anyone there?!» to see if there’s anything nearby to connect to, Bluetooth 6.0 devices will keep track when previously paired devices go in and out of range. This should save precious battery life, make pairing quicker and provide smoother multipoint switching.

What Bluetooth 6.0 doesn’t do

Improved Bluetooth sound quality (maybe)

Were you waiting for reliable, wireless lossless audio transmission from your phone to your headphones? Still not there yet.

Astute readers who note that CD-quality lossless audio transmission requires 1.4Mbps of throughput speed may wonder why Bluetooth 6.0’s theoretical 3Mbps isn’t enough. It’s because much of Bluetooth’s bandwidth is taken up by overhead — a bunch of ancillary data that’s required for secure Bluetooth connections that has nothing to do with audio. While there are some codecs that promise high-quality wireless audio, lossless CD-quality audio remains elusive.

Bluetooth 6.0 does bring the optional long-discussed LC3plus codec, which can transmit up to 24-bit and 96kHz audio. However, unlike «regular» LC3, this is an optional codec that has a separate licensing fee. That means there will be limited adoption compared to the more popular codecs. Remember, both your device and headphones must be compatible with LC3plus for it to work. How well it works and whether it can reliably transmit 24/96 in the real world remain to be seen.

A future incremental revision of Bluetooth 6.0 promises to add a high-data-throughput feature that will open up usable bandwidth for lossless streaming, potentially by using other frequency bands besides the crowded 2.4GHz band, to achieve speeds of up to 7.5Mbps. That should provide enough headroom to enable high-res audio streams, though it’s unclear if manufacturers will adopt the right codecs for lossless Bluetooth audio via headphones. Given past and current adoption rates for different Bluetooth codecs, it is unlikely to be Apple, and this technology will instead first find its way into lesser-known Android phones.

Where to find Bluetooth 6.0 right now

If you want to get a head start on Bluetooth 6.0 compatibility, there are a handful of devices already shipping (though not all of these are available in the US).

Google Pixel 10
iPhone 17
Sony Xperia 1 VII
Xiaomi 16
Edifier Doo Ace 2 headphones
Earfun Air Pro 4 Plus true wireless earbuds

Technologies

Samsung S26 Ultra’s Privacy Display Makes Shoulder Surfing a Thing of the Past

You can scroll on the subway in peace.

Picture this: You’re wedged into the middle seat while cruising at 38,000 feet, half watching the clouds and half scrolling through messages you probably should have answered already. The cabin lights are dimmed. The stranger rubbing shoulders next to you adjusts in their seat. Out of the corner of your eye, you notice their gaze flicker toward your screen.

That is a moment when the new Samsung S26 Ultra’s Privacy Display, announced during the company’s Galaxy Unpacked 2026, can quietly step in.

Unlike old-fashioned screen protectors that darken your display permanently, the new feature is built directly into the Galaxy S26 Ultra (starting at $1,300) panel. It is not a film you stick on top; it’s a part of the hardware itself, working seamlessly with the software.

During the Unpacked event, Samsung brought out Miles Franklin from MilesAboveTech to demo the feature: to Miles, looking straight at the screen, everything remained crisp, bright and color-accurate. To anyone trying to peek from the side, like those of us watching the demo, the content fades into shadow. From this perspective, the screen might as well be off.

«It’s seriously one of the coolest features I’ve seen on a phone in years,» Franklin said while onstage at Unpacked.

How Privacy Display works

Under the hood, the technology relies on a combination of directional backlighting and an adaptive pixel layer that controls how light is emitted across angles. Traditional displays spread light broadly so multiple people can see the screen at once. The S26 Ultra does the opposite when privacy mode is active. It funnels light forward in a tighter beam, limiting lateral visibility without sacrificing clarity for the primary user.

Sensors play a role, too. Using the front-facing camera and ambient awareness algorithms, the device can recognize when additional faces appear within viewing range. If it senses someone hovering nearby or glancing from the side, it can automatically trigger enhanced privacy mode. You can also have the process automate when certain notifications pop up or when opening specific apps, like those for banking or social media.

Back on the plane, you can now continue typing. The stranger next to you adjusts again — perhaps curious, perhaps bored. It doesn’t matter. Your screen remains yours.

Technologies

This One Killer Feature Sets the Samsung Galaxy S26 Ultra Apart From All Other Phones

Commentary: Samsung needed to give us a reason to be excited about its latest flagship. It delivered.

There are so many reasons not to buy a new phone in 2026. For starters, our existing phones last longer than ever if we take care of them. Plus, most new phones are way too similar, not only to each other, but to last year’s batch. Finally, most of us won’t have our heads easily turned by yet another AI sales pitch.

But on Wednesday, at Samsung’s Galaxy Unpacked event in San Francisco, the company gave us a genuinely compelling reason to consider upgrading to its new top-end flagship, the Galaxy S26 Ultra. Its killer feature has nothing to do with AI (although Samsung is still beating that drum as loudly as every phone-maker out there).

In fact, it has nothing to do with software at all. Instead, it’s an innovation in hardware: Privacy Display, which offers pixel-level privacy that prevents anyone beside you from seeing what’s on your screen.

Privacy Display works in both portrait and landscape, with the pixels dispersing light in a way that will darken parts of the screen if you’re not looking at it straight on. You can choose whether to apply it to specific apps, to notifications or for when you’re inputting PINs or passwords. Access from Quick Settings makes it easy to turn on and off on the go, like when you suspect someone on the bus is reading over your shoulder, for example.

The reason the Privacy Display is such a compelling feature is that it’s simple to demonstrate, and it offers benefits that are easy to understand, said Ben Wood, CMO and chief analyst at CCS Insight. «Unlike a secondary-market privacy screen protector affixed to the phone’s display, it is not an ‘all or nothing’ solution,» he added.

On the surface, privacy doesn’t feel especially sexy as tech features go. But it is important to people. You only need to observe how central Apple has made privacy to its entire brand to see that people place significant value in technology they feel they can trust.

For Samsung, placing privacy front and center may be a winning strategy, giving its latest flagship a genuine edge over competitors that they can’t match simply by pushing out a software update. Privacy Display also elevates the Ultra even within Samsung’s own wide stable of phones, and it goes some way (although perhaps not all the way) toward justifying that $1,300 price tag.

«At face value, the Galaxy S26 Series devices differ little from [Samsung’s] predecessors launched just over a year ago,» Wood said. «Without this capability, the Galaxy S26 Ultra would have been an extremely tough sell.»

But Samsung may want to capitalize on this competitive advantage while it can. «I also expect this to become a benchmark feature over the next few years on all premium smartphones and other products, such as laptops,» Wood said.

That’s something to look forward to if you plan to upgrade in 2027 or beyond, but for now this is an Ultra exclusive, so you’ll need to be feeling flush if you plan to be a Privacy Display early adopter.