I am working on a cycling fitness app and I want to read the cycling power recorded using my Garmin edge from the Garmin Connect App. Currently the data is not transferred to the Health/Fitness Apps. Ideally it would be good to be able to query the power samples similar to the heart rate samples, but even the average power would suffice, as I could then calculate the Kilojoules.

Ever since upgrading to OS 26.1, I've noticed that HealthKit anchored object queries seem to be much slower-updating than normal. I was curious if Apple stated anything explicitly changed on this front? I use anchored object queries to update some of the workout metrics that HKLiveWorkoutBuilder doesn't report (like stepCount).

I am using this below code since WatchOS 10 to set the user steps observer and get the callback of steps whenever changes. This is still working perfectly fine till watchOS 11 but when i updated to watchOS 26.1, I am not getting the callback of steps, like the observer is not working at all. I should get a callback inside query block whenever user take steps, but it is not working in watchOS 26.1. func setupStepCountObserver(completion: @escaping (Double, Double) -> Void) { let stepCountType = HKObjectType.quantityType(forIdentifier: .stepCount)! let query = HKObserverQuery(sampleType: stepCountType, predicate: nil) { [weak self] _, completionHandler, error in if let error = error { print("Error setting up observer query: \(error.localizedDescription)") return } // Fetch the latest step count data self?.getLast20SecTodaysSteps(completion: completion) // Call the completion handler to let HealthKit know you have processed the update completionHandler() } // Execute the query healthStore.execute(query) // Enable background delivery of updates healthStore.enableBackgroundDelivery(for: stepCountType, frequency: .immediate) { success, error in if let error = error { print("Error enabling background delivery steps: \(error.localizedDescription)") } else if success { print("Background delivery enabled for steps.") } } }

When calling beginCollection on HKLiveWorkoutBuilder the function never completes and gets stuck. (On the second workout session, the first session works flawlessly) To reproduce: Run the MirroringWorkoutsSample on WatchOS https://developer.apple.com/documentation/healthkit/building-a-multidevice-workout-app. Start the workout and then end the workouts it should work perfectly fine the first time. Start the workout and end again, and you should see the problem, the workout doesn’t end.

The second time i start a workout session, the beginCollection instance method on HKLiveWorkoutBuilder freezes. To recreate run the Apple Sample Project Building a multidevice workout app. It looks like a bug with the HealthKit SDK and not the code but i could be wrong. The only workaround i found was erasing the simulator and reinstalling the app.

Was able to use ai to help code my idea for a haptic heart rate monitor using watch se‘s ppg and accelerometer. Now if I could just get it on the App Store…

I am developing a running training app that coaches can use to create interval workout plans. I can use HKWorkout to get information about Splits similar to that in Fitness app, but I can't get information about Intervals. My idea is to show interval details when users view their completed custom interval workout plans. Can I use Healthkit (or another feasible method) to get the actual distance or time of exercise in intervals workout ? (I know the workoutPlan property, but it doesn't reflect the segments of a real interval training workout.) Any insights or suggestions would be greatly appreciated! Thanks in advance!

Hi! I have over 800 days strike in closing my move circle. However oerfect month badge is not popping up for November, we have now mid of Dec and still no update. I updated iOS to 26, did multiple resets and hard resets and still no badge. I checked many forums and post but any of given tips is working in my case. i know it sounds funny, but it’s frustrating that I’m not getting this little gold medal to keep me motivated 😅 does anyone know how to deal with it? Is it common issue?

I'm developing a single target watchOS app that obtains HealthKit information. I have the "Background Delivery" option checked under "Signing & Capabilities" for the watch target. The app does HKObserverQueries in the foreground that work as I would expect. But when I click the Digital Crown to return to clock face, the HKObserverQuery activity stops. I'm using Xcode 15.4, on Mac 14.5 and a Apple Watch Series 4 running 10.5.

https://support.apple.com/zh-cn/104959 Our application provides car insurance services. Does Apple have any API related to car accident detection exposed to developers? We want to do something when an iPhone detects a car accident

Hello, we want to re-create these graphs and use the raw data for analysis. We are getting aggregated elevation, heath rate, and pace data, but need to locate the specifics to create these graphs. Thank you

I am building a watchOS app with iOS companion app. The watch app needs to track the heart rate during the night or while user is sleeping. And the desired frequency of measurement is 0.2Hz (every 5 seconds) For this I am using the HKWorkout mode with mindAndBody session. While it works fine, One of the main issue is: after about 6-7 hours of usage, the battery on the watch drains between 40% (Series 9) and 100% (series 7, I think) My questions: Are there any other option to track user's heart rate without workout, while the app could be in background? Another side effect of this workout mode is, Even if we choose not to save the workout in HealthKit, the Activity rings gets populated by this mindAndBody session, which makes it when the user is waking up, the bar is already full, This is not desired. Is there any option to specify for ActivityRing skips this? Highly appreciate any help in advance. Cheers - Prakash

Good afternoon, I am working on a workout tracking app. So far everything is working as expected. However, I note that when my workout saves and is visible within the Fitness App, the workout duration is displayed rather than the kCal burned. What changes are required to be made in order for this to display the kCal in the list of workouts in Fitness rather than duration? For reference https://developer.apple.com/videos/play/wwdc2021/10009 this was my reference source for workout functionality.

I've been trying to figure out what the bare minimum is required for HKWorkoutBuilder to create a workout that adds time the appleExerciseTime. I couldn't find the documentation for this. This is my code so far. func createWorkoutSample( expectedActiveEnergyData: [Double], expectedExerciseMinutesData: [Double], calendar: Calendar, startDate: Date ) async throws -> [HKSample] { var testData: [HKSample] = [] let workoutConfiguration = HKWorkoutConfiguration() workoutConfiguration.activityType = .running workoutConfiguration.locationType = .outdoor let results = try await withThrowingTaskGroup(of: HKSample?.self) { group in for (index) in 0..<expectedActiveEnergyData.count { guard let date = calendar.date(byAdding: .day, value: index, to: startDate) else { continue } group.addTask { let builder = HKWorkoutBuilder( healthStore: self.manager.healthStore, configuration: workoutConfiguration, device: .local() ) let endDate = date.addingTimeInterval(expectedExerciseMinutesData[index] * 60) try await builder.beginCollection(at: date) let energyType = HKQuantityType.quantityType( forIdentifier: .activeEnergyBurned )! let energyQuantity = HKQuantity( unit: HKUnit.kilocalorie(), doubleValue: expectedActiveEnergyData[index] ) let energySample = HKQuantitySample( type: energyType, quantity: energyQuantity, start: date, end: endDate ) return try await withCheckedThrowingContinuation { continuation in builder.add([energySample]) { (success, error) in if let error = error { continuation.resume(throwing: error) return } builder.endCollection(withEnd: endDate) { (success, error) in if let error = error { continuation.resume(throwing: error) return } builder.finishWorkout { (workout, error) in if let error = error { continuation.resume(throwing: error) return } continuation.resume(returning: workout) } } } } } } for try await workout in group { if let workout = workout { testData.append(workout) } else { print("Skipping nil workout result.") } } return testData } print("Total samples created: \(results.count)") return results } When I query appleExerciseTime, there are no results. I've looked at the HKWorkoutBuilder documentation, and most of the information expands on adding samples related to the deprecated HKWorkout.

Hi, I've had trouble for a while now with HealthKit giving me different values if I make the request on iOS and WatchOS. I am using the exact same method on both with the same parameters but I get vast differences in the results. The code I am using to call HealthKit on both devices is: let dateRange = HKQuery.predicateForSamples(withStart: Date().removeMonths(numberOfMonths: 1), end: Date().endOfDay()) let predicate: NSPredicate predicate = NSCompoundPredicate(type: .and, subpredicates: [dateRange]) let query = HKStatisticsQuery(quantityType: HKQuantityType(.stepCount), quantitySamplePredicate: predicate, options: .cumulativeSum) { _, result, error in if error != nil { //print("Error fetching step count, or there is no data: \(error.localizedDescription), \(startDate) -> \(endDate)") onComplete(0) return } if let result, let sum = result.sumQuantity() { let stepCount = sum.doubleValue(for: HKUnit.count()) DispatchQueue.main.async { onComplete(Int(stepCount)) } } } healthStore.execute(query) }

Is there documentation on how to read workout effort scores from a HealthKit workout? I'm interested in reading workoutEffortScore and estimatedWorkoutEffortScore. I have not been successful trying to read them using the same method that I do other workout HKQuantityTypes (heartRate, stepCount, etc). I'm using Swift and I do have authorization for those types requested and granted. I have found documentation on setting these values (https://developer.apple.com/forums/thread/763539) but not reading them. Thank You

In my WatchOS app I've written the following code to check if my app has access to the user's health data: func isHealthKitAuthorized() -> Bool { let typesToRead: [HKObjectType] = [ HKObjectType.quantityType(forIdentifier: .heartRate)!, HKObjectType.quantityType(forIdentifier: .activeEnergyBurned)!, HKObjectType.quantityType(forIdentifier: .appleMoveTime)!, HKObjectType.quantityType(forIdentifier: .appleExerciseTime)!, HKObjectType.workoutType() ] let typesToShare: Set<HKSampleType> = [ HKObjectType.workoutType(), HKObjectType.quantityType(forIdentifier: .activeEnergyBurned)!, HKObjectType.quantityType(forIdentifier: .heartRate)! ] var isAuthorized = true for type in typesToRead { let status = healthStore.authorizationStatus(for: type) if status != .sharingAuthorized { print("Access denied to: \(type.identifier)") isAuthorized = false } } for type in typesToShare { let status = healthStore.authorizationStatus(for: type) if status != .sharingAuthorized { print("Access denied to: \(type.identifier)") isAuthorized = false } } return isAuthorized } However for the appleMoveTime and appleExerciseTime types their status is returning as 'sharingDenied' (checked by printing the status' rawValue) even though they are authorized on the Watch's settings. This happened both on the simulator and on the Watch itself. Am I doing something wrong?

Hello, I am currently working on an app that uses HealthKit to sync health data to a backend server that performs analysis on this data. I am keeping track of the synced data with the HKQueryAnchor I receive for each query I make. I want to address an edge case: if a user has multiple devices running the app, would it make sense to store the anchor on my backend? This would ensure that other instances of the app do not sync data that has already been synced from another device. Thank you for your help!

I am working on a Smart Alarm app for Watch OS. When testing on an Series 10 watch, I am successfully able to read heart rate data in the ExtendedRuntimeSession. However, although the calls succeed, the sleep analysis data is all 0. The app successfully gets authorization for: [HKQuantityType(.heartRate), HKObjectType.categoryType(forIdentifier: .sleepAnalysis)!] I have read that sleep data is not available for less than an hour time period. The Smart Alarm extended session has a 30 minute limit. Does that mean it is not possible to read sleep analysis data in a Smart Alarm extended session? Thank you!

I can create WorkoutGoals of all kinds except .energy, but I can't find any indication of the conditions under which energy goals can be used. No matter what I try, the response from supportsGoal is always false e.g. CustomWorkout.supportsGoal(.energy(10, .kilojoules), activity: .running, location: .outdoor) CustomWorkout.supportsGoal(.energy(10, .calories), activity: .cycling, location: .outdoor) CustomWorkout.supportsGoal(.energy(10, .kilocalories), activity: .running, location: .outdoor) For any combination I've tried, I get Not supported due to unsupportedGoal Has anybody managed to successfully create energy goals?