# predicateForObjects(withDeviceProperty:allowedValues:) Returns a predicate that matches all objects created by devices with the specified properties. ``` class func predicateForObjects(withDeviceProperty key: String, allowedValues: Set) -> NSPredicate ``` ## Parameters `key` A string specifying the device’s property. For a list of valid keys, see Valid Device Property Keys. `allowedValues` A set of strings. These strings represent the target property values. ## Return Value A predicate that matches all objects created by a device whose specified property matches one of the allowed values. ## Discussion Use this convenience method to create a predicate that finds all the objects saved by matching devices. These predicates let you match multiple values for a single property. For example, you can create a single predicate that matches a number of different `manufacturer` values. The following sample shows how to create a predicate that matches a list of device model names. ```objc NSPredicate *fromDevices = [HKQuery predicateForObjectsWithDeviceProperty:HKDevicePropertyKeyModel allowedValues:modelNames]; ``` ## Topics ### Valid Device Property Keys Use these keys to create predicates that match the specified device property. [`HKDevicePropertyKeyName`](/documentation/HealthKit/HKDevicePropertyKeyName) The device’s name. [`HKDevicePropertyKeyManufacturer`](/documentation/HealthKit/HKDevicePropertyKeyManufacturer) The device’s manufacturer. [`HKDevicePropertyKeyModel`](/documentation/HealthKit/HKDevicePropertyKeyModel) The device’s model. [`HKDevicePropertyKeyHardwareVersion`](/documentation/HealthKit/HKDevicePropertyKeyHardwareVersion) The device’s hardware version. [`HKDevicePropertyKeyFirmwareVersion`](/documentation/HealthKit/HKDevicePropertyKeyFirmwareVersion) The device’s firmware version. [`HKDevicePropertyKeySoftwareVersion`](/documentation/HealthKit/HKDevicePropertyKeySoftwareVersion) The device’s software version. [`HKDevicePropertyKeyLocalIdentifier`](/documentation/HealthKit/HKDevicePropertyKeyLocalIdentifier) A unique identifier for the device on the hardware running the app. For more information, see [`localIdentifier`](/documentation/HealthKit/HKDevice/localIdentifier). [`HKDevicePropertyKeyUDIDeviceIdentifier`](/documentation/HealthKit/HKDevicePropertyKeyUDIDeviceIdentifier) The device’s UDI Device Identifier. --- 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)