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1. Hypertension notifications are not intended for use by people under 22yearsold, those who have been previously diagnosed with hypertension, or pregnant persons.
2. Irregular rhythm notification requires the latest version of watchOS and iOS. It is not intended for use by people under 22years old or those who have been previously diagnosed with atrial fibrillation(AF).
3. The ECG app is available on AppleWatch Series4 and later (excluding AppleWatchSE models) and can generate an ECG similar to a single-lead electrocardiogram. Intended for use by people 22 years old and over.
4. AF History is available on AppleWatch Series4 and later, and intended for use by people 22yearsold and over with a diagnosis of atrial fibrillation.
5. 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): e41e190.
6. 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): 687698.
7. The Vitals app is for wellness purposes only and not for medicaluse.
8. Respiratory rate measurements are for wellness purposes only and not for medical use.
9. Sleep apnoea notifications are available on AppleWatch Series9 and later, Ultra2 and later, and SE3. The feature is intended to detect signs of moderate to severe sleep apnoea for people 18yearsold or older without a diagnosis of sleep apnoea.
10. Peppard, Paul E., et al. 2013. Increased Prevalence of Sleep-Disordered Breathing in Adults. American Journal of Epidemiology 177, no. 9 (May): 10061014.
11. World Health Organization. 2021. World Report on Hearing.
12. The HearingTest and HearingAid features are supported on AirPodsPro2 and later with the latest firmware paired with a compatible iPhone or iPad with iOS18 or iPadOS18 and later and are intended for people 18yearsold or older. The HearingAid feature is also supported on a compatible Mac with macOSSequoia and later. It is intended for people with perceived mild to moderate hearing loss. Some features may not be available in all regions or all languages. View complete list.
13. Supported on AirPodsPro2 and later with the latest firmware when paired with a compatible iPhone running iOS 26 and later. This feature may not be available in all regions or all languages. View complete list.
14. The Hearing Protection feature works with AirPodsPro2 and later with the latest firmware when paired with a compatible iPhone, iPad or Mac with iOS18, iPadOS18 or macOSSequoia and later. The feature is not available in all regions or all languages. View complete list. See support.apple.com/en-gb/120850 for total attenuation and more information. The Hearing Protection feature is not suitable for protection against extremely loud impulse sounds, such as fireworks, gunfire or pneumatic drills, or against sustained sounds louder than 110dBA. The Hearing Protection feature is not suitable for use in all workplaces. Consult with your employer prior to use. For AirPodsPro3, the Hearing Protection feature complies with the hearing protection standard EN 352 when EN 352 Protection is on.
15. Built-in heart rate monitor is intended for use during workouts with the Fitness app and compatible third-party apps on iPhone with iOS26 and later. Refer to support.apple.com/en-gb/123184 for more information.
16. The Cycle Tracking app should not be used for birth control or to diagnose a health condition.
17. The temperature sensing feature is not intended for medical use. Temperature sensing is available only on AppleWatch Series8 and later, AppleWatchSE3 and all AppleWatchUltra models.
18. AppleFitness+ requires a subscription and compatible hardware and software. See here for compatibility details.
19. World Health Organization. 2019. World Report on Vision.
20. Jonas, Jost B., et al. 2021. International Myopia Institute Prevention of Myopia and Its Progression. Investigative Ophthalmology and Visual Science 62, no.5.
21. Not all features will be available if the AppleWatch is set up through AppleWatch For Your Kids. Check support.apple.com/engb/109036 for details. Wireless service plan required for cellular service. Check apple.com/uk/watch/cellular for participating network providers and eligibility.
22. Time in daylight is available from AppleWatchSE (2nd generation), AppleWatch Series6 and later, and all AppleWatch Ultra models.
23. Screen Distance is available on iPhone models with FaceID, iPadPro(M4), iPadPro 12.9inch (3rdgeneration and later) and iPadPro 11inch (1stgeneration and later).

• The BloodOxygen app is for wellness purposes only and not for medicaluse.
• AppleWatch Ultra3, AppleWatch Series11 and AppleWatchSE3 require iPhone11 or later with iOS26 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.