The trackingObjects property uses 3D references and updates pose at high frequency. See when to choose tracking or just detection.
Direct answer
The ARKit beta documentation for iOS 27 introduces trackingObjects in ARGeoTrackingConfiguration to track known reference objects at the full frame rate of the video format. When recognized, the object generates an ARObjectAnchor with pose updates appropriate to movable or held items. Apple warns that the mode increases energy and processing consumption; Mostly static objects should use detectionObjects. The API and system are in beta and need to be retested in the final version.
Detection answers what; tracking tracks where
Detecting a piece of equipment starts the experiment. Updating your pose in each frame allows you to attach instructions to a part that moves during inspection or maintenance.
High frequency charges energy and processing
Continuous tracking competes with rendering, camera, and application logic. The scope must limit the number of objects and duration of intensive mode.
Reference format is part of the migration
The documentation indicates the .referenceobject format for tracking, while old references may remain restricted from detection. Catalogs need inventory and planned recapture.
Beta is not a production contract
Subscriptions and behavior may change. Proofs of concept must isolate the integration, record the system version, and repeat the tests in the final release.
Nexus Reading
Use continuous tracking only when the subject actually moves and the pose adds value. For static assets, detection reduces cost and complexity without losing the core function.
FAQ
What is the difference between trackingObjects and detectionObjects?
Tracking updates pose at high frequency for moving items; detection is more appropriate for recognizing predominantly stationary objects.
Is the API already stable?
No. The documentation identifies it as beta and requires validation with the final version of the system.
Does it work for any unregistered object?
No. The flow uses pre-prepared ARReferenceObject for the known item.
Essential guides to delve deeper into the decision
This editorial analysis was produced by Nexus from the official sources below, consulted on September 22, 2026. The text is original and interprets practical implications for companies.
- Apple — ARGeoTrackingConfiguration trackingObjects: full frame rate tracking, ARObjectAnchor, cost and difference for detectionObjects.
- Apple — ARReferenceObject: representation of known 3D objects, reference files and use in spatial recognition.
Date reported by main source: beta documentation consulted on September 22, 2026; technical analysis.