Skip to Content

Apple Opening U1 Chip to Developers With New 'Nearby Interaction' Framework

by

Introduced last year, the U1 chip in iPhone 11 models enables Ultra Wideband support for improved spatial awareness, but Apple has so far only used the technology to power a directional AirDrop feature in iOS 13.

ios 14 nearby interaction demo
In the upcoming months, that should change, as Apple has announced that it is opening up its U1 chip to developers with a new "Nearby Interaction" framework for iOS 14. This framework can stream distance and relative direction between U1-equipped devices, paving the way for some interesting new spatial-related user experiences.

Apple provides some examples:

  • A multiuser AR experience places virtual water balloons in the hands of its participants
  • A taxi or rideshare app employs a peer user's direction in real time to identify the relative locations of a driver and a customer
  • A game app enables a user to control a paddle with their device and respond to a moving ball on the peer user's screen

"Nearby Interaction" will function on an opt-in basis, with users having to grant permission for their iPhone to find and be found by nearby devices each time they open an app that incorporates the framework. Random identifiers are generated for each session.

In its video overview of the framework, Apple noted that both iPhones should be in portrait orientation to ensure accurate measurement of distance and direction. If one iPhone is in portrait orientation and the other is in landscape, this could limit the measurement capabilities, as can walls, people, pets, objects, and other obstacles between the devices.

Apple has added "Nearby Interaction" support to its Simulator tool within Xcode 12 so that developers can experiment with the framework.

Tag: U1 Chip
Related Forum: iOS 14

Popular Stories

iphone fold text

iPhone Fold Crease Measurements Revealed as Device Hits Production

Wednesday February 25, 2026 5:37 am PST by
Apple has submitted production line orders for its upcoming foldable iPhone, effectively confirming that the device will launch this year, claims a Chinese leaker. According to the Weibo account "Fixed Focus Digital," assembly lines recently received the orders from Apple, which has apparently allowed the leaker to learn the crease measurements for the device's 7.8-inch inner display....
Read Full Article • 136 comments
Low Cost A18 Pro MacBook Feature Pink

Leaker Says Apple's Lower-Cost MacBook Will Have These 8 Limitations

Wednesday February 25, 2026 9:25 am PST by
Apple is expected to unveil its long-rumored lower-cost MacBook next week. Given it will be more affordable, this MacBook model will obviously have some reduced specs and compromises compared to the MacBook Air and MacBook Pro. While we are still waiting for Apple to announce the new MacBook, a leaker has shared eight alleged limitations to expect, based on an internal version of Apple's...
Read Full Article • 343 comments
m3 macbook pro blue

M5 Pro and M5 Max MacBook Pro: What to Expect

Wednesday February 25, 2026 3:02 pm PST by
Apple is working on a new MacBook Pro that could launch next week ahead of the "Special Experience" planned for March 4, so we thought we'd highlight all of the rumors about the device so far. Design There are no rumors of design changes, and we are expecting the upcoming M5 MacBook Pro models to look just like the M4 versions. Apple will continue to offer 14-inch and 16-inch size options,...
Read Full Article • 77 comments

Top Rated Comments

GeoStructural Avatar
GeoStructural
74 months ago
How cool is this? iOS and iPad OS are slowly becoming what we always wished for. This update is so good, literally the only things missing are XCode, Final Code Pro, and Logic for iPad. And USB-C for iPhone (not software-related, I know).

The fact that XCode and the other apps have been rewritten for A-chips or ARM architecture hints that they can finally come to the iPad.

Edit: More wishes:

* No notch on iPhone
* Multitasking on iPhone (side-by-side, top-bottom apps)
* Full Finder-like Files app on iPad
* Multiplatform iMessage.
* iMessage + Facetime in a single app.
Score: 9 Votes (Like | Disagree)
entropys Avatar
entropys
74 months ago
I would like to be able to point my iPhone at a TV/display screen and flick whatever is on it straight onto the big screen.
Score: 5 Votes (Like | Disagree)
K
konqerror
74 months ago

Would be nice if the could use the extra bandwidth the U1 can use to make airdrop a lot, lot faster
The protocol used in UWB (802.15.4z) has a whole 27 Mbps of data throughput. This UWB standard is made for positioning, not high speed data transfer. They can't compete against Wi-Fi at this point.
Score: 3 Votes (Like | Disagree)
G
GregA
74 months ago
Any chance "Find my (wife)" will use the U1 chips in our phones to help pinpoint which direction she is in a store?

"Find my" works pretty well to get me within 30m/100ft, even though it ignores what floor we're on and doesn't integrate with Apple's maps of the mall or compass (so I need to work out my own bearings). But it's not quite good enough.
Score: 3 Votes (Like | Disagree)
newyorksole Avatar
newyorksole
74 months ago

How cool is this? iOS and iPad OS are slowly becoming what we always wished for. This update is so good, literally the only things missing are XCode, Final Code Pro, and Logic for iPad. And USB-C for iPhone (not software-related, I know).

The fact that XCode and the other apps have been rewritten for A-chips or ARM architecture hints that they can finally come to the iPad.

Edit: More wishes:

* No notch on iPhone
* Multitasking on iPhone (side-by-side, top-bottom apps)
* Full Finder-like Files app on iPad
* Multiplatform iMessage.
* iMessage + Facetime in a single app.

I feel like we’ll see top/bottom apps in portrait on iPhone by next year in iOS 15. And when turned to landscape mode the apps will be side-by-side.

Here’s hoping!
Score: 2 Votes (Like | Disagree)
U
unchecked
74 months ago
Ok so the U1 chip is the difference in Apple’s implementation of Android’s Instant Apps. Is it safe to assume not all android phones have a similar proximity chip?

Wonder what are the practical advantages and how developers will make use of it.
Score: 1 Votes (Like | Disagree)
Read All Comments