# AccessoryAnchor Represents a tracked accessory. ``` struct AccessoryAnchor ``` ## Topics ### Operators [`static func == (AccessoryAnchor, AccessoryAnchor) -> Bool`](/documentation/ARKit/AccessoryAnchor/==(_:_:)) Returns a Boolean value indicating whether two accessory anchors are equal. ### Instance Properties [`var accessory: Accessory`](/documentation/ARKit/AccessoryAnchor/accessory) Accessory tracked by this anchor. [`var angularVelocity: SIMD3`](/documentation/ARKit/AccessoryAnchor/angularVelocity) Angular velocity of the accessory in the local coordinate system [rad/s]. [`var description: String`](/documentation/ARKit/AccessoryAnchor/description) A textual representation of this anchor. [`var heldChirality: Accessory.Chirality?`](/documentation/ARKit/AccessoryAnchor/heldChirality) Which hand the accessory is currently held in. Returns nil if the accessory is not held. [`var id: UUID`](/documentation/ARKit/AccessoryAnchor/id) The unique identifier of this anchor. [`var isTracked: Bool`](/documentation/ARKit/AccessoryAnchor/isTracked) Whether this anchor is currently tracked or not. [`var originFromAnchorTransform: simd_float4x4`](/documentation/ARKit/AccessoryAnchor/originFromAnchorTransform) The transform from the accessory anchor to the origin coordinate system. [`var trackingState: AccessoryAnchor.TrackingState`](/documentation/ARKit/AccessoryAnchor/trackingState-swift.property) Tracking state of this anchor. [`var velocity: SIMD3`](/documentation/ARKit/AccessoryAnchor/velocity) Velocity of the accessory in the local coordinate system [m/s]. ### Instance Methods [`func coordinateSpace(correction: ARKitCoordinateSpace.Correction) -> ARKitCoordinateSpace`](/documentation/ARKit/AccessoryAnchor/coordinateSpace(correction:)) The anchor’s coordinate space. [`func coordinateSpace(for: Accessory.LocationName, correction: ARKitCoordinateSpace.Correction) -> ARKitCoordinateSpace`](/documentation/ARKit/AccessoryAnchor/coordinateSpace(for:correction:)) The coordinate space of a location on this accessory. ### Enumerations [`enum TrackingState`](/documentation/ARKit/AccessoryAnchor/TrackingState-swift.enum) Tracking state of accessory anchors. ## Relationships ### Conforms To [`Anchor`](/documentation/ARKit/Anchor) [`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible) [`ARKitCoordinateSpaceProviding`](/documentation/ARKit/ARKitCoordinateSpaceProviding) [`Sendable`](/documentation/Swift/Sendable) [`Escapable`](/documentation/Swift/Escapable) [`Equatable`](/documentation/Swift/Equatable) [`Copyable`](/documentation/Swift/Copyable) [`TrackableAnchor`](/documentation/ARKit/TrackableAnchor) [`SendableMetatype`](/documentation/Swift/SendableMetatype) [`Identifiable`](/documentation/Swift/Identifiable) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)