When we upload workout data to HealthKit the route information with the workout detailed data is incomplete: just a few dots. When we select "Show all workout routes" the route data for the same workout shows correctly. We use the HKWorkoutBuilder to store the workout data, and add the location data with the HKWorkoutRouteBuilder to the workout with Is this an Apple Health issue, or do we have to change something in the way we store the location data to the workout?

I need to be able to create and store a HeartbeatSeries for a given time-period from an Apple Watch, to then retrieve that data from HealthKit to be processed. I have working code which allows me to begin a workout session, which is being used to determine how long a session has been running for. I also have working code for retrieving HeartbeatSeries data from HealthKit. The issue is that no HeartbeatSeries data is being stored into HealthKit as a result of the workout session running. Whether that session is running for as little as 30 seconds or as long as 20 minutes, nothing is stored. However, when I use the the Apple "Meditation" app (formerly known as "Breathe"), I can query HealthKit afterwards and retrieve a list of individual heartbeat timings during that 2 minute period. Therefore, it IS possible to store a HeartbeatSeries from within an app on the Apple Watch. What I would like to know is, how can I use the pulse sensor built-in to the Apple Watch to be able to record a HeartbeatSeries similar to how the Meditation app does it.

My research group is using watch sensors (accelerometers, gyroscopes) to track wrist motion to detect and measure eating. https://cecas.clemson.edu/ahoover/bite-counter/ We are running an HKWorkoutSession on the watch so that the app can run for an extended period of time (up to 12 hr) and continue to sense and process motion data. Our app is adding to the activity rings, making it look like the user is exercising the entire time our app is running. Is there a method to prevent our app from contributing to the activity ring measures?

I am experiencing a critical issue with HealthKit authorization in iOS 18.5 where requestAuthorization() calls are immediately denied without showing the user permission dialog. Problem Description: HealthKit authorization requests immediately return .sharingDenied status No system permission dialog is displayed to the user Authorization status changes from .notDetermined to .sharingDenied in <0.1 seconds This occurs for all HealthKit data types (step count, heart rate, sleep analysis, etc.) Technical Details: iOS Version: 18.5 (22F76) Xcode Version: 16F6 Device: iPhone (tested on both simulator and physical device) Bundle IDs tested: com.hereforyou.test2024, com.hereforyou.app Entitlements: com.apple.developer.healthkit = true Code Implementation: let healthStore = HKHealthStore() let stepType = HKObjectType.quantityType(forIdentifier: .stepCount)! // Status before request: .notDetermined try await healthStore.requestAuthorization(toShare: [], read: [stepType]) // Status after request: .sharingDenied (immediate, <0.1 seconds) Evidence this is not a code issue: Other HealthKit apps from App Store work correctly on the same device Proper entitlements are configured and verified HKHealthStore.isHealthDataAvailable() returns true Same code worked in previous iOS versions Multiple Bundle IDs tested with same result Expected Behavior: System should display HealthKit permission dialog allowing user to grant/deny access Actual Behavior: Authorization is immediately denied without user interaction Steps to Reproduce: Create new iOS app with HealthKit entitlements Call requestAuthorization() for any HealthKit data type Observe immediate denial without permission dialog Is this a known issue in iOS 18.5? Are there any workarounds or timeline for a fix? Best regards

HealthKit is currently not supported on macOS nor tvOS, despite being supported by visionOS. Support for macOS was last asked about[1] here in 2018. My goal is to display interactive data visualisations over workouts collected in HealthKit on macOS. Will this be possible to do in the near future using HealthKit directly? If not, can I somehow read the information from an iPhone and display it on the mac? Cheers, Rodrigo [1] https://developer.apple.com/forums/thread/94937

New in iOS 26 and WatchOS 26 is a Sleep Score calculation for users based on Duration, Bedtime and Interruptions. Unfortunately I can't find any APIs for developers to tap into this metric. Yes, in theory it's all created off the same Sleep Analysis data already available with HealthKit but that makes it very hard to recreate in our apps. If the numbers don't match up exactly, users will understandably complain. Can anyone confirm that this is the case and I've not missed a Sleep Score API? I'll then file feedback. Hopefully this doesn't go the way of Heart Rate Zones where the Apple Watch iPhone app has generated them for years and provided no way for third party apps to access these values (yes many feedbacks provided previously).

Hello, In my application, I need to obtain precise workout segment data from HKWorkout in order to calculate per-kilometer metrics such as heart rate and pace. My current approach is: 1.Use HKWorkout to fetch the associated HKWorkoutEvents. 2.Take the end time of one event as the start time of the next event to derive per-kilometer segment ranges. The issue I’m facing: •If a user sets Apple Watch to notify every 5 kilometers, then at 5 km, 10 km, 15 km, etc., I see overlapping event times. •From the HKWorkoutEvents data alone, I cannot distinguish between events that represent “per-kilometer splits” and those that represent “5-kilometer notifications.” •As a result, my per-kilometer heart rate and pace calculations can be inaccurate. My question is: Is there a recommended way to reliably differentiate per-kilometer splits from custom distance notifications and ensure accurate segment data retrieval? For example, should I instead reconstruct segments using HKWorkoutRoute and distance samples, rather than relying on HKWorkoutEvents? STEPS TO REPRODUCE 1.On Apple Watch, start an Outdoor Run using the Workout app. 2.In workout notifications, set distance alerts to every 5 kilometers. 3.During the run, when reaching 5 km, 10 km, 15 km, etc., the watch triggers notifications. 4.Query the corresponding HKWorkout from HealthKit and inspect its HKWorkoutEvents. 5.Notice that some event start times are duplicated, and it is unclear which events represent “per-kilometer splits” and which represent “5-kilometer notifications.” Expected Result: Be able to differentiate between per-kilometer splits and custom distance alerts, so that heart rate and pace per kilometer can be calculated accurately. Actual Result: The HKWorkoutEvents data contains duplicated event times without a way to distinguish event types, leading to inaccurate per-kilometer statistics.

Since upgrading to iOS 26 beta on my Apple Watch Ultra and iPhone 16 Pro Max, my exercise app and activity rings have sporadically not connected after charging. Several recent mornings, when I’ve put my watch on, the activity rings are grayed out and when I click on them, they will show no activity, even though I have been active. Similarly, when I attempt to select the activity app, it will open, but when I select an activity, it will not start the workout. I’ve tried starting and restarting the watch and phone. I’ve checked permissions, and both the watch and phone are running the latest iOS. The only fix seems to be unpairing and repairing the watch and phone which is an absolute pain. Any assistance on how to permanently fix this would be greatly appreciated.

We are developing a health app that relies on HKObserverQuery and BackgroundDelivery to monitor Heart Rate data. On watchOS 10.6 and 11.6 , these data updates are typically delivered reliably every 8–12 minutes, occasionally exceeding 12 minutes, but generally not longer than 15 minutes. This frequency has been sufficient for the real-time data requirements of our app. However, after adapting our app to watchOS 26, we noticed that HKObserverQuery triggers much less frequently, with longer and very inconsistent intervals. This issue has had a major impact on our product: data collection for essential features is unreliable, resulting in a greatly diminished user experience on watchOS 26 and making the app essentially useless from the user’s perspective. Observed Behavior: HKObserverQuery and BackgroundDelivery are extremely unstable, with trigger intervals frequently exceeding 15 minutes, and sometimes even 20 minutes. When the user is sedentary, intervals become even longer; there are cases where no heart rate or active energy updates are delivered for 30 minutes, or even over 1 hour. Request for Support and Guidance: Have there been any changes to the HKObserverQuery background delivery mechanism on watchOS 26, specifically for Heart Rate and Active Energy data? If these changes are intentional system optimizations, could you provide guidance or recommended practices to ensure our app can reliably retrieve updates and maintain a smooth experience for users? Thank you for your support.

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.") } } }

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.

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) }

Hello Apple Community, What does approach use the Fitness app for swimming distance calculation per set (segment)? I've tried 2 options but all of them have different values than in the Fitness app. Calculation like that: pool length * number of laps = swimming distance BUT the Fitness app sometimes shows other values for distance per set (segment). Fetch all distance values via HKQuantityTypeIdentifier.distanceSwimming (HKSampleQuery`) and than try to match distance values with set (segment) duration. Again I got other values for swimming distance per set, values are bigger than in the Fitness app. let healthStore = HKHealthStore() let distanceType = HKQuantityType.quantityType(forIdentifier: HKQuantityTypeIdentifier.distanceSwimming)! let predicate = HKQuery.predicateForSamples(withStart: startDate as Date, end: endDate as Date?, options: .strictStartDate) let query = HKSampleQuery(sampleType: distanceType, predicate: predicate, limit: HKObjectQueryNoLimit, sortDescriptors: [.init(keyPath: \HKSample.startDate, ascending: true)], resultsHandler: { (query, results, error) in if let error { Logger.e("\(error)") continuation.resume(returning: nil) } continuation.resume(returning: results) }) healthStore.execute(query) Is it possible to get the same swimming distance like in the Fitness app per set via HealthKit?

Looking for help with our Apple HealthKit integration. We've successfully pulled steps, distance, active energy, glucose and heart rate. However, the data pulled for sleep duration is incorrect. Not sure what we're doing wrong.

HealthKit background delivery only triggers when charging. I have set step monitoring to hourly frequency. Despite step changes, callbacks fail to arrive after 3-4 hours on battery, but trigger immediately upon connecting power. Observed for 2 days: background updates are only received when charging. The device is not in Low Power Mode, and Background App Refresh is enabled for the app in Settings.

After upgrading to a new iPhone and restoring from an iCloud backup using the same Apple ID, I noticed an issue with Health app permissions. ■ What is happening On my previous iPhone, an app had permission to read step count data. After restoring to the new iPhone, the app still appears in the Health app under Sources. However, when I tap the app, the usual data type permission toggles (such as Steps) are not displayed at all. As a result, the app is unable to read step count data. ■ Additional details The app itself seems to be recognized as a Health data source. However, the data type permission screen is empty. No ON/OFF switches are shown. The backup was created on iOS 18, and the restore was performed on iOS 26. I have not yet confirmed whether this also happens with other iOS version combinations. ■ Questions Is it expected behavior that Health app permissions (per data type) are not restored via iCloud backup? Has anyone experienced a similar situation where the app appears under Sources but the permission options are missing? If so, how did you resolve it? Any information from users who have experienced the same issue would be greatly appreciated.

While attempting to read a user’s daily step history spanning backward to the last 7 days, a small but consistent subset of users encounter Error Code 3 with the underlying error description: Error Code 3 "Unable to invalidate interval: no data source available." When this error occurs, we are entirely unable to read their step history. We have received ~10 direct user reports of this within the last couple of weeks.

I'm trying to hook into the new workoutEffort score supported in iOS 18, I am collecting this information from users when they submit their workout and trying to add a sample to the HKWorkout in the same manner as I've been adding other samples like bodyweight, calories burned, etc. I'm receiving the error: HKWorkout: Sample of type HKQuantityTypeIdentifierWorkoutEffortScore must be related to a workout I tried adding the samples using HKWorkoutBuilder.add([samples]) as which has been working perfectly for calories burned & bodyweight, but I am receiving the above error for workoutEffortScore As a second approach, I tried adding the sample after I called finishWorkout on the HKWorkoutBuilder and received back the HKWorkout object using HKHealthStore.add([samples], to: HKWorkout) and am still receiving the same error! I don't know otherwise how to relate a sample to a workout, I thought those were the APIs to do so? I'm using Xcode 16.0 RC (16A242) and testing on an iOS 16 Pro simulator

Hi everyone! I'm trying to get the total sleep time for a given day, but users report that there's a difference between what my app reports and what the Apple Health app reports. In particular, we're off by 2 minutes less on average. What we're doing is: Get all the samples that are either core, deep, rem or unspecified Cut-off time at 3 PM previous day Merge overlapping intervals Add all the remaining intervals For debugging purposes I'm storing and sending all the raw samples to a server, and I have run tests and I don't find anything wrong. It looks like the number we come up with is correct according to our own rules. I wonder, how is Apple adding up all the samples to arrive at a number that's slightly off to our number. Any insight would be appreciated. Thanks.