Uploaded June 2026 | Updated September 2026, 1 week ago

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Get started with Channel Sounding to bring distance and direction awareness to your Bluetooth accessories. Dive into the new Nearby Interaction and Core Bluetooth APIs, and walk through the accessory-side changes you’ll need. Optimize power consumption while ensuring a smooth, responsive experience.

Explore related documentation, sample code, and more:
AccessorySetupKit: developer.apple.com/documentation/AccessorySetupKit
Nearby Interaction: developer.apple.com/documentation/NearbyInteraction
Core Bluetooth: developer.apple.com/documentation/CoreBluetooth
Measuring distance between devices using Channel Sounding: developer.apple.com/documentation/CoreBluetooth/measuring-distance-between-devices-using-channel-sounding
Meet AccessorySetupKit: developer.apple.com/videos/play/wwdc2024/10203
Explore Nearby Interaction with third-party accessories: developer.apple.com/videos/play/wwdc2021/10165

00:00 - Introduction
00:50 - Overview
03:17 - Core Bluetooth API
04:34 - Nearby Interaction API
07:05 - Hardware tips

More Apple Developer resources:
Video sessions: apple.co/VideoSessions
Documentation: apple.co/DeveloperDocs
Forums: apple.co/DeveloperForums
App: apple.co/DeveloperApp