Mastering Apple Watch
How to disable or enable Activation Lock on your Apple Watch
The Apple Watch’s Activation Lock feature prevents would-be thieves from running off with your watch.
All Articles by Serenity Caldwell
Troubleshoot AirPods
How to find the serial number for your AirPods
Like all Apple products, your AirPods have a unique serial number. Here’s how to find it!
Ba-bump ba-bump
Best ways to measure your heart rate on iPhone without an external monitor
Want to monitor your heartbeat without a fitness tracker or chest strap? Try these apps.
#iPhoneSlow
iPhone replacement batteries no longer subject to shipping delays
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Apple's currently offering cheap iPhone battery replacements through December 2018. Here's what you need to know. Update: According to an internal Apple memo, replacement batteries are now readily available, and will be shipped without delay.
Rockin’ out
Libratone Track+ Review: Beats X meets in-ear workout headphones
The Libratone Track+ in-ear headphones are quickly replacing the Beats X as my favorite all-purpose headphones.
Track your health
Best apps for tracking your HRV (heart rate variability) on iPhone
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Want to track your heart rate variability (HRV)? Here are the best apps to do it.
Mastering Apple Watch
How to check your heart rate with Apple Watch
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Forget manually taking your pulse: Your Apple Watch can tell you everything you need to know about your heart rate.
Health & Fitness
How to measure heart rate variability (HRV) on your Apple Watch
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Getting an HRV reading on your Apple Watch is as easy as taking a few deep breaths.
Mastering Apple Watch
How to pair an external heart rate monitor to Apple Watch
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While your Apple Watch heart sensor should perform just fine for passive monitoring, anyone training or in need of much more accurate data may be better off with a heart rate monitor strap.
Rotate that clip!
How to quickly fix sideways video clips on iPhone or iPad
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Filmed something upside-down or sideways? It’s a cinch to turn it around in Photos for iOS with the right extension.
Snip snip
Why I love editing video on iPad — and how it could still be a lot better
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You can do a lot more than you probably think when video editing on iPhone or iPad. But it’s not enough for me: I want to see more from Apple's pro teams.
DIY Repairs
How to replace your iPhone battery: The ultimate guide
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Need an iPhone battery replacement? Here's everything you need to know to DIY (do-it-yourself) replace a dead or dying battery in your iPhone!
Buyers Guide
iPad or MacBook: Which is best for your needs?
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Deciding between a MacBook or iPad? Here’s the breakdown you didn’t know you needed.
Mastering iPad
The best apps for handwriting with the Apple Pencil and iPad
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It’s never too early to consider the apps you’ll need to take notes with your iPad and Pencil. Here are our favorite handwriting options.
Mark it up!
Best PDF markup and annotation apps for iPad and Apple Pencil
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Sign, add text, highlight, and connect PDF documents together with these excellent apps.
Troubleshooting Apple Watch
Swollen battery in your S2 Apple Watch? Apple is repairing them for free
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Whether it's a broken screen, Digital Crown jam, swollen battery, or you can't get a charge at all, here are the best ways to repair — or outright replace — your Apple Watch.
iPad Pros
My 9.7 iPad (2018) review: Drawn, written, and edited with an iPad
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More than anything else, the Apple Pencil is the gamechanger for the 2018 iPad. So I used it to draw, write, and create a review done entirely on the 9.7-inch tablet.
Mastering Apple Pencil
When should you replace the tip of your Apple Pencil?
Your Apple Pencil’s nib lasts longer than most pens, but it still needs to be replaced eventually.
The Pencil is mightier...!
Best drawing apps for iPad and Apple Pencil
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Even if you've never had an art background, the iPad Pro and Pencil make it pretty easy to start sketching.
iPad Buyers Guide
Which iPad Pro should you buy: 10.5-inch or 12.9-inch?
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The differences have never been fewer between Apple’s two Pro models, yet the decision remains a tough one.