Apple: Explained: How the Apple Watch’s activity tracking works

Apple Just wrapped up its WWDC keynote, where it announced a version of WearOS – WearOS 9 for the Apple Watch. and we are expecting a new batch of apple watch this fall. Don’t you think the Apple Watch is more capable of doing what most smartwatches can’t properly do? Much more than just counting steps and tracking your calories. And now, with watchOS 9, it can even track how efficiently you’re running and automatically switch between different exercises. There’s a lot going on behind the scenes in the Exercise Ring on your Apple Watch. Yes, everyone is grinding to fill those rings but have you ever wondered how the Apple Watch does it? How does the watch on your wrist measure up to all these indicators and motivate you to maintain your fitness goals? Well, don’t worry; We’ve got you covered.
What’s the technology behind the Apple Watch’s activity tracking?
Let’s start with the basics. So, the Apple Watch is a smartwatch which means it has a brain of its own – a processor, and there are a bunch of different sensors on the watch and a display where you can view various statistics. The various sensors on the watch are pretty handy, including a heart rate monitor, accelerometer, gyroscope, and in the latest, even an electrical heart sensor to count up various statistics about your health or exercise. But how does it know whether you are standing or exercising?
The Apple Watch’s sensors keep checking your heart rate at regular intervals. So, if it is stable and there is no major change, it is assumed that you are at rest. Meanwhile, once the sensors detect a deflection, mostly an increase in heart rate, other sensors, including the accelerometer and gyroscope, begin to track your movement and decide you’re done. It takes into account your range of motion and arm movement when deciding what type of exercise you’ll be doing. The GPS even measures the speed and distance you cover while walking or cycling.
How does the Apple Watch know how many calories you’ve burned?
A lot of tracking is based on personal information that you filled in when you set up the watch. If you have entered incorrect information, you may not get an accurate calorie count because it is calculated based on your height, weight and the amount of exercise you do throughout the day. So, check your personal information once and correct it to get accurate measurements.
How does sleep tracking work on Apple Watch?
Sleep tracking on the Apple Watch is fairly simple. So, sleep tracking is integrated with watch app on your iPhone. And you set the time when you will be going to sleep. Apple calls this ‘bedtime. Then it’s time to wake up, and during this period, your watch will go into DND mode. The heart rate sensor will work throughout the night to determine your sleep time with the help of your heart rate.
Apple Watch is smarter than you think
As you keep working out, those exercise rings on your watch fill up. But, Apple Watch is smart, so it learns your exercise routine and you get less points if you do it consistently. So to fill those rings, your watch will motivate you to work harder and try new exercises.
With watchOS 9, Apple Announces Multisport Workout Type; When enabled, the Apple Watch can automatically switch between swimming, running, and biking. Apple has also brought some new features for runners. Apple Watch running watchOS 9 can detect various running metrics, including step length, ground contact timeand vertical oscillations.

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