# SpeedThresholdAlert An alert for a speed threshold. ``` struct SpeedThresholdAlert ``` ## Topics ### Creating speed threshold alerts [`init(target: Measurement, metric: WorkoutAlertMetric)`](/documentation/WorkoutKit/SpeedThresholdAlert/init(target:metric:)) Creates a new speed threshold alert. ### Accessing alert data [`var target: Measurement`](/documentation/WorkoutKit/SpeedThresholdAlert/target) A speed measurement that represents the target threshold. [`var targetQuantity: HKQuantity`](/documentation/WorkoutKit/SpeedThresholdAlert/targetQuantity) A HealthKit quantity that represents the target speed threshold. ### Comparing alerts ## Relationships ### Conforms To [`SendableMetatype`](/documentation/Swift/SendableMetatype) [`Sendable`](/documentation/Swift/Sendable) [`Hashable`](/documentation/Swift/Hashable) [`Equatable`](/documentation/Swift/Equatable) [`WorkoutAlert`](/documentation/WorkoutKit/WorkoutAlert) --- 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)