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How to Set Up Apple Watch Notifications and Health Settings

Control which alerts reach your Apple Watch, configure supported health notifications, set up sleep tracking and Medical ID, and troubleshoot missing Health data.
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Apple Watch notifications usually appear on either your paired iPhone or your watch—not both. Manage ordinary app alerts in the iPhone’s Apple Watch app, and configure health features separately in Heart, Vitals, Sleep, and Health. The exact options depend on your watch model, software version, age, and country or region; health notifications can flag patterns but do not diagnose a condition.

Choose where app notifications appear

Use the Apple Watch app on your paired iPhone to decide which app alerts reach the watch and how they are delivered.

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  1. Open the Apple Watch app on your iPhone.
  2. Tap My Watch > Notifications.
  3. Select an app. If available, choose Mirror my iPhone to use the iPhone’s notification settings, or select Custom to configure alerts for that app.
  4. With custom settings, choose Allow Notifications, Send to Notification Center, or Notifications Off. Some apps also offer grouping or other alert-specific options.

For lock-screen presentation, use the watch itself: open Settings > Notifications. Depending on the options available, you can control whether a summary appears while the watch is locked, whether a tap is required to show the full notification, and whether alerts appear when your wrist is down. See Apple’s notifications guidance.

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Understand why an alert may go to the iPhone instead

Apple’s rule is: “Notifications will appear on your Apple Watch or iPhone, but not both.” If your iPhone is unlocked, a notification generally appears there. If the iPhone is locked or asleep, it generally appears on the watch—unless the watch is locked. Apple says alerts go to the iPhone when the devices are disconnected, or when the watch is locked or Do Not Disturb is on. Focus settings and connection state can therefore change where an alert appears. Third-party app notifications also require the paired iPhone to be connected to a network. These routing rules are described in Apple’s Apple Watch notification guide.

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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
  • 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.

Set high- and low-heart-rate alerts

On the paired iPhone, open the Apple Watch app > My Watch > Heart. Tap High Heart Rate or Low Heart Rate and choose a threshold. Apple lists these notifications for Apple Watch Series 1 or later and people age 13 or older. They alert you when the measured heart rate meets the selected threshold; they are not a diagnosis. Check Apple’s heart-health notification guidance for current details.

Set up irregular-rhythm notifications

This feature has a separate setup path from high- and low-heart-rate alerts. On your iPhone, open Health > Browse > Heart > Irregular Rhythm Notifications > Set Up, then follow the eligibility prompts. Availability depends on country or region and compatible, up-to-date iOS and watchOS versions. Apple says the feature is not intended for people under 22 or people already diagnosed with atrial fibrillation (AFib); AF History must also be off. It can notify you of an irregular rhythm that may be suggestive of AF, but it does not diagnose AFib. Consult Apple’s current eligibility and setup information because availability and requirements can vary.

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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
  • 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.

Turn on overnight Vitals notifications

On Apple Watch, open Settings > Vitals and turn on Notifications. The Vitals app can show overnight heart rate, respiratory rate, wrist temperature, blood oxygen, and sleep duration. It establishes typical ranges during sleep and can notify you when multiple measurements fall outside those ranges. Apple says notifications are on by default when at least two metrics are outside their typical ranges.

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Which measurements are available depends on the watch model and region. In particular, Apple says blood oxygen is not available in Vitals on certain models purchased in the United States with part numbers ending in LW/A, for purchases made on or after January 18, 2024. Read Apple’s Vitals user guide for feature details. These readings describe overnight patterns, not a diagnosis; proper watch fit and skin contact support sensor readings and haptic alerts.

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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
  • 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.*

Set up sleep tracking

Start in the Health app on your iPhone and follow the prompts to set a sleep goal and schedule. The schedule sets your intended sleep and wake times; tracking is a separate setting and requires wearing the watch.

  1. In Health, follow the prompts to configure Sleep and your schedule.
  2. Turn on Track Sleep with Apple Watch.
  3. Before bed, charge the watch to at least 30%, then wear it for at least one hour while you sleep.

Apple’s sleep-tracking setup guide explains the requirements and settings.

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
  • 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.*

Add Medical ID information

On your paired iPhone, set up Medical ID in the Health app with the health details and emergency contacts you want available. The information can also be viewed on Apple Watch: hold the side button until the sliders appear, then slide Medical ID. Apple says sharing Medical ID information with emergency services when calling or texting 911 or using Emergency SOS is available in the United States and Canada; do not assume the same sharing behavior in other regions. See Apple’s Medical ID guidance.

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Check Health data and app permissions

If activity data is missing, first check whether Fitness Tracking is enabled for the watch:

Best Value
Apple Watch Series 11 [GPS 42mm] Smartwatch with Jet Black Aluminum Case with Black Sport Band - S/M. Sleep Score, Fitness Tracker, Health Monitoring, Always-On Display, Water Resistant
  • 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.
  1. On iPhone, open Health > profile > Devices > Apple Watch > Privacy Settings.
  2. Turn on Fitness Tracking.

To review what third-party apps can read or write, open Health > profile > Apps and allow the categories you want to share. An app may also require permission in its own settings. Health can combine measurements from more than one source; within a category, open Data Sources & Access to view and reorder sources. Apple documents these controls in its Health data management guidance.

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