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How to use Apple Watch blood oxygen sensor, and what it’s good for

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The Blood Oxygen app is not for medical use. So what exactly is it for?
The Blood Oxygen app is not for medical use. So what exactly is it for?
Photo: Graham Bower/Cult of Mac

The blood oxygen sensor featured in Apple Watch Series 6 and 7 is “not intended for medical use,” Apple says. That seems odd, considering that low blood oxygen is a serious medical condition. If the watch’s monitor is not for medical use, then what exactly is it for?

In this post, we’ll look at what blood oxygen is, how Apple Watch measures it, how the device compares to medical-grade alternatives, and what you can actually use it for.

Apple wants you to take a walk with Jane Fonda on Earth Day

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A new Time to Walk episode featuring Jane Fonda lands just in time for Earth Day.
A new Time to Walk episode featuring Jane Fonda lands just in time for Earth Day.
Photo: Apple

Apple Fitness+ added screen legend Jane Fonda to the Time to Walk feature for Earth Day. She discusses her life as well as the fight against climate change.

Time to Walk promises interesting and encouraging audio stories to liven up walking for exercise. It’s part of Apple Fitness+, a $9.99-a-month subscription workout service built around Apple Watch.

Apple Fitness+ reaches out to pregnant women, older adults, beginners

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Apple Fitness+ is adding several new workout categories on April 19: Workouts for Pregnancy, Workouts for Older Adults, and Workouts for Beginners.
Apple Fitness+ is adding several new workout categories on April 19.
Photo: Apple

Apple Fitness+ will introduce new workouts geared specifically toward pregnant women and older adults next week, the company said Thursday. There will also be new Yoga, High Intensity Interval Training and Strength workouts for beginners coming soon to Apple’s subscription fitness service.

Cardio Fitness: What Apple’s new health metric means and how you can use it

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Most of the interesting stuff in your body happens in your core, not on your wrist.
Most of the interesting stuff in your body happens in your core, not on your wrist.
Photo illustration: Graham Bower/Cult of Mac

Apple’s VOmax metric measures the performance of your heart and lungs when you push yourself to the limit. Up until now, though, it’s only been useful to serious fitness fanatics. No wonder Apple buried it in the Health app, where most users never found it.

But watchOS 7.2 and iOS 14.3, which Apple released Monday, change all that. In those updates, the VOmax metric has been renamed Cardio Fitness. Now it can detect lower ranges and send alerts when the reading gets too low. That makes it the latest in a series of potentially life-saving health notifications from Apple Watch.

Here’s everything you need to know to get the benefit of this essential new feature.

How to get back in shape after lockdown with Apple Watch

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Time to dust off your Apple Watch and start closing those rings again
Time to dust off your Apple Watch and start closing those rings again.
Photo: Graham Bower/Cult of Mac

If you’ve let your fitness slide during the lockdown, you’re not alone. The Activity app’s constant nagging to close your rings is not very helpful when all the gyms are closed and you’re stuck at home.

Skipping workouts for a few months is understandable under the circumstances, but you don’t want to become a permanent couch potato. So now that we’re all adjusting to the “new normal,” it’s the ideal time to dust off your Apple Watch and get back in shape.

During coronavirus quarantine, Apple Watch is some people’s best fitness friend

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Apple Watch helps people like Sune Holt stay fit during COVID-19 chaos.
Stuck in quarantine? Apple Watch can help you stay active.
Photo: Sune Holt

Even people who never realized Apple Watch’s awesome motivational power are standing up and testifying: The device helps get your butt up off the couch during the coronavirus quarantine.

“It’s fantastic that a gadget was the thing I needed to get myself in shape again,” said Sune Holt, an Apple Watch wearer from Denmark. “In November, I feared I wasted my money. Now it’s the best investment in a lifetime.”

How to get six-pack abs at home with Apple Watch

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Our essential guide to building rock-hard abs (with a little help from Apple Watch).
Our essential guide to building rock-hard abs (with a little help from Apple Watch).
Photo: Graham Bower/Cult of Mac

Your fitness doesn’t need to suffer just because you’re stuck indoors during the coronavirus quarantine. In fact, now is the ideal time to start working on your six-pack. The lockdown won’t last forever. If you put in the work now, you’ll be looking like a ripped ex-con by the time we’re all allowed out again.

This post covers everything you need to know to build rock-hard abs. We’ll dispel a couple of myths that stop you from blasting your belly fat. And, in the video, I’ll show you the two essential types of core exercise you need to know.

Customize your Apple Watch workouts for effective home exercise

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Can't go to the gym? Customize your Apple Watch to fit your home workouts.
Can't go to the gym? Customize your Apple Watch to fit your home workouts.
Photo: Meghan Holmes/Unsplash CC

If you’re stuck at home due to COVID-19 self-isolation, you’re probably not getting enough exercise these days. Still, you should try to keep yourself in shape, for both your mental and your physical wellbeing. The Apple Watch can definitely help, and you can customize the data it displays during workouts so you only see what you need.

Maybe you don’t need to know the current pace for your indoor walk, or you don’t care to be distracted by your calorie burn during a yoga session. Let’s see how to customize Apple Watch workouts to fit your personal needs.

How to do an effective home workout with no gym equipment

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Stay healthy and strong with these essential home workout tips. You can do these home workouts without any gym equipment.
Stay healthy and stay strong with our essential home workout tips.
Photo: Graham Bower/Cult of Mac

Thanks to the coronavirus pandemic, staying home is a great choice for everyone’s health right now. But it’s not ideal for your fitness. Your Apple Watch will soon start grumbling if you just sit around indoors and don’t close your rings. So what should you do?

How to fix Apple Watch duplicate workouts

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Seeing double? Fixing duplicate Activity app workouts is easier than you think.
Seeing double? Fixing duplicate workouts is easier than you think.
Photo: Graham Bower/Cult of Mac

The Health app on your iPhone acts as a central repository for all your workout data. Not just activity from your Apple Watch, but from third-party apps, too.

That’s great, because it gives you the freedom to use any workout app you want, safe in the knowledge that it will still contribute to your Activity rings. But this flexibility can cause problems. When you use multiple apps or third-party devices, it can cause duplicate workouts. So let’s take a look at how Apple handles these duplicates, what impact they have on your Activity Rings, and how you can fix the problem.