Your iPhone is getting enhanced Bluetooth tracking with iOS 27 - but there's a catch

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ZDNET's cardinal takeaways

• iPhones volition enactment Bluetooth Channel Sounding successful iOS 27.
• Channel Sounding promises secure, fine-ranging Find My instrumentality capabilities.
• Although exciting, adoption volition beryllium dilatory -- per usual.

This year's WWDC is over, and present it's clip for developers to fine-tune their apps and for aboriginal adopters to trial them up of this fall's nationalist motorboat of iOS 27. AI dominated the conversation, serving arsenic the instauration for upgrades to Siri, Search, Photos, and more, portion immoderate upgrades didn't marque it to the keynote.

Also: Everything announced astatine Apple WWDC 2026 - including Siri, iOS 27 dev beta, and more

One less-discussed iOS 27 diagnostic is enactment for Channel Sounding, an innovative Bluetooth diagnostic archetypal announced successful Bluetooth 6.0, which was released successful the autumn of 2024. Channel Sounding enables a Bluetooth-enabled instrumentality to execute precise localization, enhancing its spatial consciousness of region and direction.

Thanks to Bluetooth's ubiquity and Apple's enactment for Channel Sounding, immoderate of the world's astir fashionable smartphones volition enactment enhanced determination compatibility with third-party Bluetooth headphones, astute locks, trackers, wallets, integer keys, and different location-based peripheral devices. 

Like always, it wouldn't beryllium an emerging Bluetooth exertion if determination weren't a fewer caveats. More connected that successful a bit.

What does Channel Sounding mean for iPhone?

Channel Sounding's astir invaluable payment to consumers is its quality to democratize the Find My network. In a cleanable world, each the devices you'd similar to support tabs connected tin beryllium easy recovered successful the Find My app, with nonstop region and absorption measurements, careless of manufacturer. Channel Sounding aims to marque this imagination a reality.

With Channel Sounding, iPhone users tin expect improved device-tracking functionality with third-party headphones, earbuds, Bluetooth trackers, and more.

Also: I spoke with Bluetooth reps astir the aboriginal of connected audio, and it's cooler than I expected

As smartphones go integer keys for cars, astute locks, and safes, Channel Sounding promises secure, "centimeter-level accuracy" successful determination technology, ensuring that lone your instrumentality tin enactment arsenic a cardinal erstwhile wrong a circumstantial range.

A smarter Find My network

Jada Jones/ZDNET

Currently, Apple's Find My Device diagnostic works champion with different Apple devices, specifically those with an ultra-wideband (UWB) chip. If you unfastened Find My to look for your AirPods Pro 3, the Find diagnostic that helps you way them down is enabled by the UWB chips successful your iPhone and your AirPods. In its existent state, Bluetooth is what tin assistance with wide directions, and UWB offers close absorption and distance.

Conversely, if you misplace your Powerbeats Pro 2, Bluetooth steps in. You tin lone spot wherever your Powerbeats were past connected to your iPhone via Bluetooth, since the Powerbeats deficiency a UWB chip.

Also: Will your iPhone enactment Siri AI? The reply is complicated

However, UWB chips are costly to manufacture, and not each manufacturers spot the request to incorporated them. These chips are much communal successful smartwatches and smartphones than successful single-purpose peripheral devices, specified arsenic headphones, earbuds, oregon Bluetooth trackers.

As a result, if you person an iPhone and privation enhanced instrumentality tracking, you're locked into Apple's ecosystem of UWB-equipped devices, including definite AirPods and AirTags. Yet Apple's clasp of Channel Sounding volition grow your Find My network, allowing Bluetooth exertion to capable instrumentality determination gaps successful third-party devices that deficiency UWB chips.

What's the catch?

At WWDC, Apple's announcement of Channel Sounding enactment included guidance connected however developers tin statesman optimizing their apps for their Bluetooth peripherals for iPhone, on with the requirements for doing so. Apple mandates that for a third-party Bluetooth instrumentality to beryllium compatible with Channel Sounding connected iPhone, it indispensable enactment Bluetooth 6.3.

Channel Sounding is disposable lone connected iPhones with Apple's N1 networking chip, which is recovered exclusively successful the iPhone 17 lineup; aboriginal iPhones volition apt person it oregon a much precocious spot that supports Channel Sounding.

Also: Every iPhone exemplary that supports the iOS 27 update (and which older ones don't)

The Bluetooth Special Interest Group, of which Apple is simply a member, adopted and released Bluetooth 6.3 connected May 6, conscionable a period earlier the latest WWDC. For context, galore peripheral devices, specified arsenic headphones and earbuds, manufactured arsenic precocious arsenic 2025, enactment Bluetooth 5.4.

So, we shouldn't expect Bluetooth headphones, speakers, oregon earbuds to debut with Bluetooth 6.3 anytime soon. However, smartphones, smartwatches, trackers, and astute locks thin to follow the latest Bluetooth technologies much quickly, particularly from manufacturers of respective instrumentality categories, specified arsenic Apple and Google. 

However, adjacent for devices with quicker Bluetooth adoption, it volition apt beryllium astatine slightest a twelvemonth earlier we spot immoderate wide Channel Sounding connected iPhone.