To get an Apple Watch alert when your heart rate stays above a chosen level, turn on High Heart Rate Notifications in Settings on the watch, or set it in the Apple Watch app on your iPhone. The alert is designed for a sustained high reading after at least 10 minutes of inactivity; it is not an instant alarm for every threshold crossing during a workout.
Set a high-heart-rate alert on Apple Watch
- Open Settings on your Apple Watch.
- Tap Heart.
- Tap High Heart Rate Notifications.
- Choose the threshold you want.
The watch offers selectable BPM thresholds; choose from the options shown rather than assuming you can enter any number. Apple documents this setup in its Apple Watch Heart Health guide.
Set it from the iPhone Apple Watch app
- Open the Apple Watch app on the paired iPhone.
- Tap My Watch.
- Tap Heart.
- Tap High Heart Rate.
- Select a BPM threshold.
This route requires the watch to be paired and visible in the Apple Watch app. Apple also says heart-rate notifications can be enabled the first time you open the Heart Rate app on the watch; the Settings and iPhone routes are available later if you skipped that prompt. See Apple’s heart health notification instructions.
When does Apple Watch send the alert?
Apple says the watch can notify you when your heart rate remains above the selected threshold while you have been inactive for at least 10 minutes. A high reading during exercise or movement does not necessarily trigger this notification. It is not a live workout-zone alarm, so use a workout display or a suitable workout feature if you need to follow your heart rate while exercising. The inactivity condition is described in the Apple Watch guide.
The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →#1 Best Overall
![Apple Watch Series 11 [GPS 46mm] Smartwatch with Jet Black Aluminum Case with Black Sport Band - M/L. Sleep Score, Fitness Tracker, Health Monitoring, Always-On Display, Water Resistant](https://m.media-amazon.com/images/I/416RQ0rtsUL._SL160_.jpg)
- A FULL-FEATURED HEALTH TRACKER—Apple Watch Series 11 gives you invaluable insights about your body, right from your wrist. Take an ECG anytime* and get alerts for a high and low heart rate or an irregular rhythm*—so you can stay closer to your heart. You can also view your overnight health tracking metrics with the Vitals app* and be notified of possible sleep apnea.*
- KNOW YOUR SLEEP SCORE—With advanced sleep tracking, Series 11 gives you a daily sleep score. It’s an easy way to help measure and understand the quality of your sleep, so you can make it more restorative.
- GET HYPERTENSION NOTIFICATIONS—Did you know that Series 11 can spot signs of chronic high blood pressure? By analyzing how your blood vessels respond to beats of the heart, it can notify you of possible hypertension.*
- SAFETY FEATURES—A smartwatch that puts your safety first. Series 11 can detect a hard fall or severe car crash, automatically help connect you with emergency services, and notify your emergency contacts.* Check In can automatically notify a loved one when you’ve arrived at your destination.
- A POWERFUL FITNESS TRACKER—With advanced metrics and motivating features like Pacer, Heart Rate Zones, training load, and Workout Buddy powered by Apple Intelligence from your nearby iPhone*—Series 11 is made to help everyone stay active, from runners and hikers to strength-training enthusiasts.
Which Apple Watch models and ages support it?
Apple states that high- and low-heart-rate notifications are available on Apple Watch Series 1 or later for people 13 years old or older. This is the stated compatibility for these notifications, not a blanket compatibility rule for every Apple Watch health feature. Check Apple’s support page for its current availability details.
What threshold should you choose?
There is no single threshold that is right for everyone. Consider your usual resting heart rate and personal circumstances, including age, fitness, and medications. If a clinician has recommended a specific threshold for you, follow that advice rather than a generic number. A lower setting may alert more readily; a higher one may be less useful if you want earlier notice.
Rank #2
![Apple Watch Series 11 [GPS 42mm] Smartwatch with Rose Gold Aluminum Case with Light Blush Sport Band - S/M. Sleep Score, Fitness Tracker, Health Monitoring, Always-On Display, Water Resistant](https://m.media-amazon.com/images/I/31caPPnRysL._SL160_.jpg)
- A FULL-FEATURED HEALTH TRACKER—Apple Watch Series 11 gives you invaluable insights about your body, right from your wrist. Take an ECG anytime* and get alerts for a high and low heart rate or an irregular rhythm*—so you can stay closer to your heart. You can also view your overnight health tracking metrics with the Vitals app* and be notified of possible sleep apnea.*
- KNOW YOUR SLEEP SCORE—With advanced sleep tracking, Series 11 gives you a daily sleep score. It’s an easy way to help measure and understand the quality of your sleep, so you can make it more restorative.
- GET HYPERTENSION NOTIFICATIONS—Did you know that Series 11 can spot signs of chronic high blood pressure? By analyzing how your blood vessels respond to beats of the heart, it can notify you of possible hypertension.*
- SAFETY FEATURES—A smartwatch that puts your safety first. Series 11 can detect a hard fall or severe car crash, automatically help connect you with emergency services, and notify your emergency contacts.* Check In can automatically notify a loved one when you’ve arrived at your destination.
- A POWERFUL FITNESS TRACKER—With advanced metrics and motivating features like Pacer, Heart Rate Zones, training load, and Workout Buddy powered by Apple Intelligence from your nearby iPhone*—Series 11 is made to help everyone stay active, from runners and hikers to strength-training enthusiasts.
If you do not see the setting
- Check that your watch is Series 1 or later and that the wearer is at least 13, the limits Apple states for these notifications.
- Open the Heart Rate app on the watch once; Apple says notifications may be enabled during its first use.
- Try the alternate route in the paired iPhone’s Apple Watch app: My Watch → Heart → High Heart Rate.
- Check that the watch is paired and connected to the iPhone, and install available software updates on both devices.
- If labels differ, they may vary with language, region, or software version.
What to do after receiving an alert
Consider what was happening before the notification: whether you had been resting, whether the reading recurs, and whether you feel unwell. If a reading is surprising, pause and check it again rather than treating one notification as a diagnosis. Apple Watch notifications do not establish the cause of a high reading.
Seek urgent medical help for severe or alarming symptoms such as chest pain, fainting, serious shortness of breath, or feeling acutely unwell. For repeated high readings or concerns about your health, contact a healthcare professional.
Quick wins for a faster PC:
Repair Windows errors before they cause bigger problemsFix Now →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Clear out junk files and repair common Windows errorsFree Scan →Rank #3
![Apple Watch SE 3 [GPS 40mm] Smartwatch with Starlight Aluminum Case with Starlight Sport Band - S/M. Fitness and Sleep Trackers, Heart Rate Monitor, Always-On Display, Water Resistant](https://m.media-amazon.com/images/I/31YiTby0pOL._SL160_.jpg)
- GET SMARTER HEALTH INSIGHTS—Apple Watch SE 3 is an advanced health tracker that helps you better understand your body. The smartwatch sends alerts for an irregular heart rhythm, or an unusually high or low heart rate.* You can view your overnight health tracking metrics with the Vitals app,* track your sleep score, and get sleep apnea notifications.*
- A GREAT FITNESS TRACKER—SE 3 can track your workouts in a healthy number of ways—from running and strength training to simply achieving your 10K steps a day. With real-time metrics and Workout Buddy powered by Apple Intelligence from your nearby iPhone,* you’ll hit your goals like never before.
- KEEP HELP CLOSE AT HAND—SE 3 is a smartwatch that can detect a hard fall or severe car crash and automatically help connect you to emergency services and notify your emergency contacts.* Check In can automatically notify a loved one when you’ve arrived at your destination.
- WOMEN’S HEALTH INSIGHTS—SE 3 has advanced sensors that track your wrist temperature while you sleep. With this smartwatch, you can log your periods and symptoms, get period predictions, and get notified of cycle deviations.*
- GREAT BATTERY LIFE AND FASTER CHARGING—Enjoy a smartwatch with all-day, 18-hour battery life* from sunup to sundown. Then charge up to twice as fast as SE 2* and get up to 8 hours of battery in just 15 minutes.*
High-heart-rate alerts are different from irregular-rhythm notifications
High Heart Rate Notifications concern a sustained reading above a BPM threshold after inactivity. Irregular Rhythm Notifications are a separate feature that periodically checks for an irregular rhythm that may suggest atrial fibrillation (AFib). Turning on one does not turn on the other; irregular-rhythm notifications have separate setup and eligibility requirements and are not available in every region.
To begin that separate setup, use the Apple Watch app on iPhone: My Watch → Heart → Set Up Irregular Rhythm Notifications in Health → Set Up in Health. Review Apple’s eligibility and availability information before relying on the feature.
Rank #4
![Apple Watch SE 3 [GPS 40mm] Smartwatch with Midnight Aluminum Case with Midnight Sport Band - S/M. Fitness and Sleep Trackers, Heart Rate Monitor, Always-On Display, Water Resistant](https://m.media-amazon.com/images/I/31Gq8SToFJL._SL160_.jpg)
- GET SMARTER HEALTH INSIGHTS—Apple Watch SE 3 is an advanced health tracker that helps you better understand your body. The smartwatch sends alerts for an irregular heart rhythm, or an unusually high or low heart rate.* You can view your overnight health tracking metrics with the Vitals app,* track your sleep score, and get sleep apnea notifications.*
- A GREAT FITNESS TRACKER—SE 3 can track your workouts in a healthy number of ways—from running and strength training to simply achieving your 10K steps a day. With real-time metrics and Workout Buddy powered by Apple Intelligence from your nearby iPhone,* you’ll hit your goals like never before.
- KEEP HELP CLOSE AT HAND—SE 3 is a smartwatch that can detect a hard fall or severe car crash and automatically help connect you to emergency services and notify your emergency contacts.* Check In can automatically notify a loved one when you’ve arrived at your destination.
- WOMEN’S HEALTH INSIGHTS—SE 3 has advanced sensors that track your wrist temperature while you sleep. With this smartwatch, you can log your periods and symptoms, get period predictions, and get notified of cycle deviations.*
- GREAT BATTERY LIFE AND FASTER CHARGING—Enjoy a smartwatch with all-day, 18-hour battery life* from sunup to sundown. Then charge up to twice as fast as SE 2* and get up to 8 hours of battery in just 15 minutes.*
Where to review heart notifications
On iPhone, open the Health app and look in the Heart category for heart-related notifications. Apple describes the available heart data in its iPhone Health guide.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
