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Apple
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Apple is committed to empowering you on your personal health journey with intuitive features — built right into the products you love to use every day.

All of our health innovations are subject to rigorous scientific validation and are developed with clinical experts from start to finish.

With helpful insights, you’ll get a better picture of your overall health and fitness on a daily basis and over time.

And since every health feature is designed to protect your privacy , you’re always in control of your data.

Stay close to your heart.

Your heart beats over 100,000 times per day. Beat by beat, your heart rate and its response to activities like running or cycling are important indicators of your general health . With advanced features like high and low heart rate notifications, irregular rhythm notifications, 1 the ECG app, ² and AFib History, ³ Apple Watch gives you an invaluable view of your cardiovascular health.
Take an ECG anytime, anywhere. With Apple Watch you can check for signs of atrial fibrillation, or AFib — an irregular heart rhythm — by using the ECG app to generate a single-lead electrocardiogram. When you place your finger on the Digital Crown, built-in electrodes read and record the electrical heart signals straight from your fingertip and wrist. You can share a PDF of your ECG reading with your doctor. Learn more about arrhythmia detection (PDF) It’s estimated that AFib affects over 50 million adults worldwide, with a substantial increase in risk for those 65 years and older. ⁴ If left untreated, it’s one of the leading conditions that can result in a stroke. You can help manage AFib with the right medications, regular exercise, and a heart-healthy diet.
Sleep like a dream.

Sleep plays a crucial role in your physical and mental health , affecting everything from your immune system to your mood and more. Apple Watch helps you meet your sleep goals and can track your sleep. It can even identify signs of sleep apnea, which currently impacts more than one billion people worldwide. ⁵
Each sleep stage is essential. The sensors in Apple Watch can tell you how much time you spend in the REM, Core, and Deep sleep stages, as well as when you might have woken up. REM is where you experience dreaming, and studies show it plays a key part in memory. During the Core phase, muscle activity decreases and your body temperature drops. Deep sleep has a restorative effect on the body. You can keep an eye on this data in the Sleep app. Learn more about how Apple Watch estimates sleep stages (PDF) Track your overnight health metrics. The Vitals app on Apple Watch helps you spot changes in your health before you feel them. ⁶ Quickly see your overnight health data right on your wrist — including sleep duration, heart rate, respiratory rate, ⁷ and wrist temperature — and get notified if your metrics are ever outside your typical range. Spot signs of sleep apnea. Sleep apnea is a condition where breathing stops repeatedly and causes disrupted sleep. If untreated, it can lead to hypertension, type 2 diabetes, and cardiac issues. Apple Watch can reveal signs of sleep apnea by detecting small wrist movements that are associated with interruptions in normal respiratory patterns during sleep. ⁸ Learn more about sleep apnea (PDF)
Tune in to your hearing health.

About 1.5 billion people around the world are living with hearing loss — and millions are unaware that they’re affected by it. ¹⁰ To help you better understand your hearing and make caring for it more accessible, our medical and audio specialists worked together to develop an end-to-end hearing health experience for AirPods Pro 2.
Use a clinical-grade Hearing Aid feature with AirPods Pro 2. You can access a Hearing Test and a Hearing Aid feature using just AirPods Pro 2 and an iPhone or iPad. ¹¹ After you complete the Hearing Test, if you have perceived mild to moderate hearing loss, your personalized hearing profile will guide you to the Hearing Aid feature. With a quick setup, you’ll start hearing more clearly immediately. You can even customize the settings to suit your needs. Learn more about Hearing Health features on AirPods Pro 2 (PDF) Take a Hearing Test at home. Find a quiet, comfortable place and launch the test from the AirPods Pro 2 settings on your iPhone or iPad. Pro-level Active Noise Cancellation and the in-ear seal help enable the conditions needed to conduct the evaluation. Once the test is completed, you’ll get easy-to-understand results and insights about your hearing. Using pure-tone audiometry, the test — which is informed by learnings from the Apple Hearing Study — plays a series of tones that you respond to by tapping the screen of your iPhone or iPad. Helpful animations, tap-back effects, and progress indicators guide you through the experience, which takes about five minutes. Help reduce your daily noise exposure. One in three people are exposed to loud noise on a regular basis. AirPods Pro 2 provide active Hearing Protection across listening modes to help prevent exposure to loud environmental noise. ¹² The Noise app on Apple Watch can also alert you when sound levels in your environment could affect your hearing.
Fuel your fitness.

Your personal fitness is the result of small lifestyle choices that add up every day. When you integrate positive habits — like regular activity and workouts — into your routine, it can help you to improve both your physical and mental health . From Activity rings to the Workout app, Apple Watch is in tune with all the ways you stay active — so motivation is always at arm’s reach.
Set a daily Move goal. Even if you don’t have an Apple Watch, you can set up a daily Move goal in the Fitness app on iPhone to keep yourself motivated. Track your steps, distance, and flights climbed, as well as workouts from third-party apps, to estimate the active calories that contribute to your Move goal. Learn how Apple Watch measures activity (PDF) Take your training further. Apple Watch understands all the ways you work out. From running to yoga, it puts advanced metrics and views like Heart Rate Zones, training load, Power, and Elevation right on your wrist. And if you want to track how active you are over time, you can view your trends data in the Fitness app on your iPhone. Apple Watch can measure your cardiovascular health with VO ₂ max, which is the maximum amount of oxygen your body can consume during exercise. If your cardio fitness levels are low for your age and sex, you’ll receive a notification. You can improve your VO ₂ max by increasing the intensity and frequency of your cardiovascular exercise. Learn how Apple Watch estimates cardio fitness (PDF)
Get the inside track on your cycle.

Your period is a vital indicator of your overall health . The Cycle Tracking experience on iPhone, Apple Watch, and iPad lets you log your period and record symptoms or cycle factors, so you have a deeper understanding of your menstrual cycle. ¹³ Most recently, data from our ongoing Women’s Health Study — the first of its kind — has helped to improve Cycle Tracking predictions.
Stay in sync with your period. Since cycles vary, the best way to understand what’s normal for you is by tracking your menstrual cycle. In the Health app on your iPhone, iPad, and Apple Watch, you can use Cycle Tracking to log your period, record symptoms, and get predictions about your next period or fertile window. It can also notify you if a cycle deviation is detected. Get insights and notifications about your pregnancy. In the Health app on iPhone or iPad, Cycle Tracking can provide you with additional support related to your health during pregnancy. For example, you can see your gestational age in Cycle Tracking, track your pregnancy across all your health charts, and be reminded to check in on your mental health more often — since during and after pregnancy you can be at a higher risk for conditions like depression.
Be mindful of your mental health.

Your mental health is just as important as your physical health — in fact, they’re connected. Studies show that identifying your feelings can help you manage emotions and have a positive effect on the body by slowing your heart rate. Helpful features on iPhone, iPad, Apple Watch, and Apple Vision Pro let you reflect on your state of mind and build emotional awareness and resilience.
Preserve memories, practice gratitude. Journaling can help you reflect and practice gratitude, which has been shown to improve wellbeing. Whether you’re jotting down a memory or capturing a special moment, the Journal app on iPhone makes it easy to document your thoughts and observations through State of Mind, photos, videos, audio recordings, and more. Help prevent myopia in children. One way to reduce the risk is by having your child spend at least 80 to 120 minutes outdoors in daylight each day. ¹⁷ With Apple Watch For Your Kids, ¹⁸ time in daylight can be measured on a child’s Apple Watch, even if they don’t have an iPhone. ¹⁹ And with Health Sharing, parents can keep track of it. How close is too close? Viewing a device or book too closely for an extended period of time can increase the risk of myopia in children and eyestrain in adults. The Screen Distance feature on iPhone and iPad uses the same TrueDepth camera that powers Face ID to detect when you hold your device closer than 12 inches for an extended period and encourages you to move it farther away. ²⁰
A great view of you.

The Health app helps you organize your important health information — like medications, sleep, activity, and more — in one central and secure place that’s easy to access from your iPhone and iPad. It also provides interactive charts and advanced trend analysis, so you can track and view your health data over time.

Your data is yours. And yours only.

All of our health features are built with privacy at the core and are designed to keep your data secure.

Your health data is encrypted on your device and is accessible only with your passcode, Touch ID, or Face ID. Health data synced to iCloud is encrypted both in transit and at rest. And if you have the default two-factor authentication enabled, your health data is encrypted end-to-end — not even Apple can access your information.
Learn more about our approach to health privacy (PDF)

Apple Research app

Apple is paving the way for a new era of distributed health research that’s accessible to anyone with an iPhone. Join over 350,000 people contributing to groundbreaking research studies by sharing health data with the Apple Research app.

Learn more

ResearchKit

ResearchKit helps developers create apps that drive health research at new levels of speed and scale. It has enabled many critical research projects at leading institutions like Stanford and Johns Hopkins University.

Learn more

CareKit

CareKit helps develop apps that change the ways care is provided to patients beyond the confines of a doctor’s office. Apps built with CareKit are improving care for some of the most challenging medical conditions today.

Learn more

Reports and resources

Innovations grounded in science.

From heart health to vision, all Apple health features are scientifically validated and developed in collaboration with clinical experts. You can view detailed reports about our ongoing innovations below.

Environment

We’re committed to bringing our net emissions to zero across our entire carbon footprint by 2030.

Learn more

Irregular rhythm notification requires the latest version of watchOS and iOS. It is not intended for use by people under 22 years old or those who have been previously diagnosed with atrial fibrillation (AFib).

The ECG app is available on Apple Watch Series 4 and later (excluding Apple Watch SE) and can generate an ECG similar to a single-lead electrocardiogram. Intended for use by people 22 years old and over.

AFib History is available on Apple Watch Series 4 and later, and intended for use by people 22 years old or older with a diagnosis of atrial fibrillation.

Martin, Seth S., et al. 2025. “ 2025 Heart Disease and Stroke Statistics: A Report of US and Global Data From the American Heart Association .” Circulation 151, no. 8 (February): e41–e190.

Benjafield, Adam V., et al. 2019. “ Estimation of the Global Prevalence and Burden of Obstructive Sleep Apnoea: A Literature-Based Analysis .” Lancet Respiratory Medicine 7, no. 8 (August): 687–698.

The Vitals app is for wellness purposes only and not for medical use.

Respiratory Rate measurements are for wellness purposes only and not for medical use.

The Sleep Apnea Notification Feature is available on Apple Watch Series 9 and later and Ultra 2. It is intended to detect signs of moderate to severe sleep apnea for people 18 years old or older without a diagnosis of sleep apnea.

Peppard, Paul E., et al. 2013. “ Increased Prevalence of Sleep-Disordered Breathing in Adults .” American Journal of Epidemiology 177, no. 9 (May): 1006–1014.

World Health Organization. 2021. “ World Report on Hearing .”

The Hearing Aid feature has received FDA authorization. The Hearing Test and Hearing Aid features are supported on AirPods Pro 2 with the latest firmware paired with a compatible iPhone or iPad with iOS 18 or iPadOS 18 and later and are intended for people 18 years old or older. The Hearing Aid feature is also supported on a compatible Mac with macOS Sequoia and later. It is intended for people with perceived mild to moderate hearing loss. Hearing Health features are subject to change. Some features may not be available in all regions or all languages. View complete list .

The Hearing Protection feature works with AirPods Pro 2 with the latest firmware when paired with a compatible iPhone, iPad, or Mac with iOS 18, iPadOS 18, or macOS Sequoia and later. Feature is only available in the U.S. and Canada. See support.apple.com/120850 for total attenuation and more information. The Hearing Protection feature is not suitable for protection against extremely loud impulse sounds, such as gunfire, fireworks, or jackhammers, or against sustained sounds louder than 110 dBA.

The Cycle Tracking app should not be used for birth control or to diagnose a health condition.

The temperature sensing feature is not intended for medical use. Temperature sensing is available only on Apple Watch Series 8 and later and all Apple Watch Ultra models.

Apple Fitness+ requires a subscription and compatible hardware and software. See here for compatibility details.

World Health Organization. 2019. “ World Report on Vision .”

Jonas, Jost B., et al. 2021. “ International Myopia Institute Prevention of Myopia and Its Progression .” Investigative Ophthalmology and Visual Science 62, no. 5.

Not all features will be available if the Apple Watch is set up through Apple Watch For Your Kids. Wireless service plan required for cellular service. Contact your service provider for more details. Check apple.com/watch/cellular for participating wireless carriers and eligibility.

Time in daylight is available from Apple Watch SE (2nd generation), Apple Watch Series 6 and later, and all Apple Watch Ultra models.

Screen Distance is available on iPhone models with Face ID, iPad Pro (M4), iPad Pro 12.9-inch (3rd generation and later), and iPad Pro 11-inch (1st generation and later).

The ability to measure blood oxygen is no longer available on Apple Watch units sold by Apple in the United States beginning January 18, 2024. These are indicated with part numbers ending in LW/A. Learn how to identify your Apple Watch .

Apple Watch Ultra 2, Apple Watch Series 10, and Apple Watch SE require iPhone Xs or later with iOS 18 or later.

Features are subject to change. Some features, applications, and services may not be available in all regions or all languages.

Not all features are available on all devices.