We teach you step by step how to measure heart rate from the Apple Watch and everything you need to know about this health function
He Apple Watch is a very complete device in terms of health and incorporates advanced sensors to measure, among other things, our heart rateThe Apple Watch can measure the number of beats per second of our water and keep a strict control, as well as alert us if it detects any problem.
Here you will find Everything you need to know about heart rate monitoring on Apple Watch. From how to do it to what the sensors are like, how often it is measured and if the results are reliable.
How the Apple Watch measures your heart rate
He Apple Watch incorporates an optical heart rate sensor which uses a technology called photoplethysmography. This method is based on a simple principle: blood is red because it reflects red light and absorbs green light. So Apple Watch uses green LEDs along with light-sensitive photodiodes to measure the amount of blood flowing through your wrist.
Apple Watch measures heart rate flashing its green LED lights hundreds of times per seconddetecting blood flow that increases with each heartbeat (higher green light absorption) and decreases between beats (lower green light absorption). The optical heart rate sensor in Apple Watch is capable of measuring over a range of between 30 and 210 beats per minute.
When does Apple Watch measure your heart rate?
The Apple Watch doesn’t measure your heart rate constantly, as this would drain the battery, so it does this at certain times of the day. When you start a workout, your heart rate is measured continuously. and three minutes after finishing, to determine the frequency of recovery after physical exercise.
Throughout the day, Apple Watch takes various heart rate measurements in the background depending on your activity, so the time between these measurements will vary. Apple doesn’t offset the frequency when they are taken, but it is enough to know the daily resting frequency.
How to measure heart rate with Apple Watch
Although Apple Watch measures your heart rate throughout the day, you can always measure your heart rate at any time with the Heart Rate app included in the Apple Watch.
- On Apple Watch, enter the application menu by pressing the digital crown.
- Locate the app with a heart.
- When you open it, the Apple Watch will begin to measure your heart rate.
- After a few seconds your heart rate per minute will appear.
You can tell your heart rate with Apple Watch whenever you want
Turn on heart rate notifications
He Apple Watch can notify you when your heart rate stays above or below a certain number beats per minute that we can customize. This can be very useful to control our health, follow these steps to activate them:
- On your iPhone, go to the Watch app.
- Tap the My Watch tab, then tap Heart.
- Tap High Heart Rate and select the number of bpm.
- Tap Low Heart Rate and select the number of BPM.
Turn on irregular rhythm notifications
The Apple Watch can also notify you of an irregular heart rhythm, something that could be a symptom of heart problems. Here’s what you need to do to activate them:
- Open the Health app on your iPhone.
- Tap the Explore tab and go to Heart > Irregular Rhythm Notifications to turn them on.
- Now go to the Watch app on your iPhone, tap the My Watch tab, go to Heart > Irregular Rhythm and turn on the switch.
How to view your heart rate graph on Apple Watch or iPhone
The Apple Watch records everything you Heart rate data history and you can check it at any timeThis can be very subtle to keep track of our health or to show them to a professional if a problem or illness is detected. So it is interesting to be able to access all the records of our heartbeat measurements.
You can access this data from both Apple Watch and iPhone:
- From the Apple Watch:
- Open the Heart Rate app.
- Turn the Digital Crown to Range, Resting Rate, or Walking Average to show your heart rate throughout the day.
- From the iPhone:
- Open the Health app on your iPhone.
- Tap Explore > Heart.
- You can see your heart rate for the last hour, day, week, month or year
You can check your heart rate data from your iPhone and Apple Watch
Why doesn’t the Apple Watch measure heart rate?
As we mentioned earlier, Apple Watch monitors your heart rate from the Heart Rate app, during workouts, and also during breathing and reflection sessions. But if you’ve noticed that Apple Watch has stopped measuring your heart rate per minute, and you may have disabled this feature.. Here’s how to turn it back on:
- Open the Settings app on Apple Watch.
- Go to Privacy & Security > Health.
- Tap “Heart Rate” and turn on the switch.
Are Apple Watch heart rate measurements accurate and reliable?
The Apple Watch offers some optimal heart rate readings that are quite accurate and reliable for most users as long as the device is properly positioned on the user’s wrist. Although Apps warns that even under perfect conditions, Apple Watch may not be able to get a reliable heart rate reading at all times for all people.
He Apple Watch is one of the best watches on the market when it comes to health sensors. A device that can not only measure heart rate, but also has the option to perform electrocardiograms or measure blood oxygen levels directly from the wrist.
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