Some Apple Watch Users Experiencing Issues With Inconsistent Heart Rate Data Following Update - MacRumors
Skip to Content

Some Apple Watch Users Experiencing Issues With Inconsistent Heart Rate Data Following Update

Following the release of Watch OS 1.0.1 on Tuesday, Apple Watch users have been noticing a problem concerning the frequency with which the Apple Watch sends heart rate data to the iPhone. Prior to the update, the Apple Watch sent heart rate information to the iPhone's Health app every 10 minutes, but now some users are seeing inconsistent update times.

As highlighted by everythingiCafe on Wednesday, Apple Watch owners on the MacRumors forums and Apple's Support Communities have been complaining that their Apple Watches are sending data sporadically, with gaps up to eight hours in some cases.

heartratemonitoring101

Before update on left, after update on right. Image via MacRumors forum member twisted-pixel.

Many of the users are still seeing occasional updates to the Health app, but at unpredictable intervals that are not as frequent as the previous 10 minute update intervals, and some are also seeing duplicate readings. This bug is not affecting all users, as some people are still reporting regular data transfers, but for the users experiencing issues, unreported heart rate data seems to be irretrievable.

I also noticed that my heart rate data in the health app for about a week period is gone and my heart rate data is now updating into the app intermittently. I spoke with Apple customer service this morning, but data could not be restored and their advice was to restart both the iPhone and the Watch, clean the sensor back, and keep an eye on it. That, unfortunately, has not fixed anything and I think there might be a bigger problem on our, er, hands (or wrists).

For those unaware, the heart rate information collected by the Apple Watch's sensors is aggregated in the Health app on the iPhone, giving users a picture of their overall heart health throughout the day. With consistent 10 minute readings, the iPhone is able to provide clear and consistent data that wearers can share with doctors and use to make health evaluations.

Data that is sent sporadically is less useful for these purposes, causing this bug to significantly impact the health tracking abilities of the Apple Watch for users who are affected.

Some individuals experiencing issues have said that restarting their devices temporarily solves the problem, but the sporadic measurement times return shortly after. On the Apple Support Communities, one affected user who spoke with Apple suggested that his Apple Watch stopped sending heart rate measurements when he was actively moving.

Apple is collecting information from users who call in with the issue, and some have been told that the company is working on a fix.

Related Roundup: Apple Watch 12
Buyer's Guide: Apple Watch (Buy Now)
Related Forum: Apple Watch

Popular Stories

apple watch series 3 design

Apple Offers Steps to Fix Daylight Saving Time Bug on Apple Watch

Sunday November 1, 2026 3:34 am PST by
Apple has published a support document describing what to do if your Apple Watch continues to show time that's off by one hour after daylight savings time changes. "This incorrect time appears only on the Always On display when your wrist is down," says Apple. "When you activate the display by tapping it or raising your wrist, the time changes to the correct hour." To fix the issue, Apple says ...
apple watch s12 ultra 4

Apple Watch Series 12, Ultra 4 Owners Report Skin Irritation

Wednesday October 7, 2026 12:02 pm PDT by
Some Apple Watch Series 12 and Ultra 4 owners have experienced unexpected skin irritation with the new models, according to reports on the MacRumors forums and Reddit. Affected users complain of a burning sensation and redness under the sensor area. The Apple Watch Series 12 and Ultra 4 measure heart rate every five seconds, and some people have wondered if that's the cause of the skin...
southern straps 3 1

MacRumors Giveaway: Win an Apple Watch Series 12 and a Nylon Band From Southern Straps

Friday October 9, 2026 10:20 am PDT by
For this week's giveaway, we've teamed up with Southern Straps to offer MacRumors readers a chance to win an Apple Watch Series 12 and a nylon band from Southern Straps to go along with it. Southern Straps is a California-based company that has been making high-quality bands for the Apple Watch since the device first launched in 2015, and the company's selection of bands offer a an...

Top Rated Comments

AngerDanger Avatar
150 months ago
I wonder how Apple will put a positive spin on this.

(http://i.imgur.com/CdOA529.png)
Score: 16 Votes (Like | Disagree)
happydude Avatar
150 months ago
i'd like to thank all early adopters for helping iron out the major bugs before i get apple watch v.2
Score: 11 Votes (Like | Disagree)
Analog Kid Avatar
150 months ago
Maybe the users are just intermittently dead?
Score: 9 Votes (Like | Disagree)
TimUSCA Avatar
150 months ago
i'd like to thank all early adopters for helping iron out the major bugs before i get apple watch v.2

You're welcome. In the meantime, I'm enjoying the hell out of my watch for an entire year before you do and realizing that these "bugs" are rare and not a big deal.
Score: 8 Votes (Like | Disagree)
150 months ago
Heart rate sensor always on

Something funny I discovered since .01:
1. remove your watch
2. Access the heart rate glance
Notice that now the green light stays on - on 1.0 it would understand there's no skin there and just stop.
Now, it stays on, and after a little while will start display a heartbeat!!
Apparently the air in my apartment is pretty healthy at 64bpm :rolleyes:
My trust for these numbers just went down by a lot :(
Score: 7 Votes (Like | Disagree)
150 months ago
Inconsistent?...

According to MyFitnessPal, this is how many calories I have left to eat today:



My Apple Watch has decided that the 45 mins of CrossFit I did this morning burned over 400,000 calories.

It's a good job that Friday is cheat day then :)
Score: 6 Votes (Like | Disagree)
Latest Stories
Apple Surveys iPhone Duo Buyers About Crease and Camera
Apple Surveys iPhone Duo Buyers About Crease and Camera
10 hours ago
Apple's First Touchscreen Mac is Now Arriving to Customers
Apple's First Touchscreen Mac is Now Arriving to Customers
11 hours ago
Claude Gets Personal Finance Feature With Bank Account Linking
Claude Gets Personal Finance Feature With Bank Account Linking
11 hours ago
Apple Arcade Adds Crossy Road Rush and NBA 2K27
Apple Arcade Adds Crossy Road Rush and NBA 2K27
12 hours ago
Apple's New HomeView Smart Home Hub: Here's How Much RAM It Has
Apple's New HomeView Smart Home Hub: Here's How Much RAM It Has
12 hours ago
iPad Mini vs. iPad Air Buyer's Guide: Now Just $50 Apart
iPad Mini vs. iPad Air Buyer's Guide: Now Just $50 Apart
13 hours ago
First iOS 27.3 and macOS Golden Gate 27.3 Public Betas Now Available
First iOS 27.3 and macOS Golden Gate 27.3 Public Betas Now Available
15 hours ago
Apple Announces a New Mac Sales Record
Apple Announces a New Mac Sales Record
16 hours ago
Paid $200 for Logic Pro? Apple Says You Won't Get This New Feature
Paid $200 for Logic Pro? Apple Says You Won't Get This New Feature
16 hours ago
Instagram's Edits Video Editor is Now Available on Mac
Instagram's Edits Video Editor is Now Available on Mac
17 hours ago
Prevent Siri and Search From Accessing Specific iPhone Apps
Prevent Siri and Search From Accessing Specific iPhone Apps
17 hours ago
Best Early Black Friday Deals on iPhone 18 Pro and iPhone Duo
Best Early Black Friday Deals on iPhone 18 Pro and iPhone Duo
18 hours ago
MacBook Pro PROLED XDR Reviews Are In: Is the Touchscreen Worth It?
MacBook Pro PROLED XDR Reviews Are In: Is the Touchscreen Worth It?
19 hours ago
Early Black Friday Accessory Deals at Amazon Include TVs, Headphones, and Charging Devices
Early Black Friday Accessory Deals at Amazon Include TVs, Headphones, and Charging Devices
19 hours ago
Apple Creator Studio App Updates Rolling Out, Starting With Logic Pro
Apple Creator Studio App Updates Rolling Out, Starting With Logic Pro
19 hours ago
Siri AI Waitlist Now Limited to Times of 'High Demand,' Says Apple
Siri AI Waitlist Now Limited to Times of 'High Demand,' Says Apple
21 hours ago
See Apple's Touchscreen MacBook Pro in Action
See Apple's Touchscreen MacBook Pro in Action
22 hours ago
MacBook Neo Shipments Expected to Double in 2027
MacBook Neo Shipments Expected to Double in 2027
22 hours ago
HomeView Code Suggests Future Support for AI Chatbot Apps, Anti-Spoofing Protection
HomeView Code Suggests Future Support for AI Chatbot Apps, Anti-Spoofing Protection
22 hours ago
Got an iPhone Duo on Launch Day? Today Could Be Your Last Chance to Return It
Got an iPhone Duo on Launch Day? Today Could Be Your Last Chance to Return It
54 minutes ago
Apple Launching Five New Products Today
Apple Launching Five New Products Today
3 minutes ago
Apple Releases Safari Technology Preview 256 With Bug Fixes and Performance Improvements
Apple Releases Safari Technology Preview 256 With Bug Fixes and Performance Improvements
1 day ago
Apps Can Now Try to Stop You From Canceling Subscriptions
Apps Can Now Try to Stop You From Canceling Subscriptions
1 day ago
'Super Mario Odyssey' Can Now Run on Apple TV Thanks to AI
'Super Mario Odyssey' Can Now Run on Apple TV Thanks to AI
1 day ago
How 'Resident Evil' Director Zach Cregger Uses His iPhone to Make Movies
How 'Resident Evil' Director Zach Cregger Uses His iPhone to Make Movies
2 days ago
HomePod Mini 2's Amount of RAM Confirmed
HomePod Mini 2's Amount of RAM Confirmed
2 days ago
Apple TV's '12 Days of Snoopy' Special Arrives November 13
Apple TV's '12 Days of Snoopy' Special Arrives November 13
2 days ago
Apple is Putting Employees on an AI Budget
Apple is Putting Employees on an AI Budget
2 days ago
Apple Releases Xcode 27.3 Beta With Three New Features
Apple Releases Xcode 27.3 Beta With Three New Features
2 days ago
Apple Will Check Public iCloud Links for Harmful Content Starting in iOS 27.3
Apple Will Check Public iCloud Links for Harmful Content Starting in iOS 27.3
2 days ago