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When the Apple Watch was originally released in 2015, it was pitched as a great watch, an intimate way to communicate, and a comprehensive fitness device. While the original Apple Watch (later renamed Series 0) lacked GPS and was generally a slow device, it has shown dramatic improvements year over year particularly for Apple’s health initiatives.

When Apple released the Series 1 and Series 2 Apple Watches, it added heart rate monitoring for Apple Health. When you enable heart rate monitoring, you  can also turn on heart rate notifications, so you know if your heart rate remains above or below a chosen beats per minute (BPM), or to occasionally check for an irregular heart rhythm. Irregular rhythm notifications are available only with watchOS 5.1.2 or later in certain countries.

With Apple Watch Series 4, Apple added a electrocardiogram monitoring (also known as ECG and EKG). The ECG app on Apple Watch (Series 4 or newer) can record your heartbeat and rhythm using the electrical heart sensor and then check the reading for atrial fibrillation (AFib). It then records that information into the Apple Health app.

Since the release of Apple Watch, there have been countless stories of people’s lives being saved by the health advancements in Apple Watch and Apple’s Health initiatives.

Apple Watch ECG

If you have an Apple Watch Series 4 or newer, here’s a how to guide on how to take an ECG.

Apple also includes a Health app on the iPhone where it easy to learn about your health and start reaching your goals. It consolidates data from iPhone, Apple Watch, and third-party apps in one place.

Top Stories on Apple Health

Best smart scales with iPhone and iPad sync for Apple Health app

Smart scales that sync with iPhone and iPad offer a convenient way to monitor personal health metrics. Prices span from under $30 for basic features to around $500 for models with clinical grade body scans and easy-to-recommend solutions in between. For anyone who wants weight and related data to appear in the Health app, the key requirement is choosing a scale that supports Apple Health.

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Pedometer++ 8 brings friendly design refresh and Expedition Mode to Apple Watch

Pedometer++ has logged a lot of miles since first unlocking step tracking on the iPhone 5s in 2013. Nearly 13 years of updates later, version 8.0 arrives with a redesigned Apple Watch experience that includes an all-new Expedition Mode. Pedometer++ also touts a “highly-usable workout picker” for Apple Watch users frustrated by watchOS 26’s Workout app.

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Apple at 50: How the company’s shift into health changed my life at 25

This story is part of 9to5mac’s series celebrating Apple’s 50th anniversary.

April 1, 1976: 50 years ago, Apple was founded. 40 years later, to the date, I was a 25-year-old embarking on a health and fitness journey, and Apple was right at the core.

April 1, 2016: I started an Apple Watch workout streak that helped guide me to running. I’d never run in my life at 25, but I started closing rings on my watch with a used elliptical at home. By fall, I was running, and by New Year’s Day, I had lost 50 pounds.

April 1, 2017: I ran my first-ever 5K race. It was the “2017 Superintendent’s 5K Challenge: A Race for Education” in Miami, Florida. My 3.1-mile run time clocked in at 26 minutes 46 seconds with an 8-minute, 36-seconds pace per mile. I ranked 151 out of 2231 participants.

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Apple launching ‘revamped’ Health app later this year with these four upgrades

Apple Health features graphic

Over the past year or so, we’ve heard a plethora of Health app related rumors. Tim Cook has stated that one of Apple’s largest contributions to society will be in health, and this series of upgrades will be a key part of that vision. We’ll be recapping those upgrades, and you should be seeing them on your iPhone in just a few months.

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Apple Watch blood sugar monitoring a step closer as new tech launches

Apple Watch blood sugar monitoring a step closer as new tech launches | Isaac pendant shown left with companion app on the right

Apple Watch blood sugar monitoring is something the company reportedly wanted to do right from the start. A report back in 2023 said that the very first Apple Watch was initially intended to launch with non-invasive glucose measurement as a headline feature.

There have been numerous reports since then, a number of them claiming that the health feature would launch in whatever the upcoming Apple Watch was at the time. More than a decade later, it still hasn’t happened, but the launch of a new device suggests that we might be getting closer …

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Give you and your Apple devices a happy new year with these simple steps

Give you and your Apple devices a happy new year | Colorful 2026 graphic

As Apple itself recently noted, most new year’s resolutions don’t last very long. When it comes to daily gym visits and diets, so many people have given up by the second Friday in January that it has come to be known as Quitter’s Day.

But there are some steps you can take with your Apple devices that make it extremely easy to keep up new habits once you’ve done the simple prep …

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