'Good Morning America' Goes Inside Apple's Secret Apple Watch Fitness Testing Lab

ABC News this morning revealed an exclusive behind-the-scenes video of Apple's testing facility for the upcoming Apple Watch, showing off dozens of Apple employees covered in various sensor-tracking technology used to gather data for the health and fitness areas of the wearable device. Apple executives Jeff Williams and Jay Blahnik accompanied ABC on a tour of the facility.

Employees of the company, from engineers to managers and developers, have volunteered to participate in the tests for nearly two years, not knowing of the reason behind the facility until recently. Wearing masks that measure changes in breathing and other various statistics, the volunteers were put through various workout regimens including rowing, yoga, and running, in order to collect data for the Watch.


“[The employees] knew they were testing something, but they didn't know it was for the Apple Watch,” said Jeff Williams, Apple’s senior vice president of operations. “We hooked them up with all the masks and so forth, but we would put on an Apple Watch covered up.”

The lab even included "climate chambers", which allowed Apple to simulate varying environments, from hot to cold, without having to physically leave Apple headquarters for testing. The company did so anyway, visiting drastically different locations around the globe to put the Watch through the most strenuous environment testing they could.

“We have traveled to Alaska and gone to Dubai to really test Apple Watch in all those environments, but we also wanted to be able to have a controlled environment here where we could see those extremes,” said Jay Blahnik, Director of Fitness and Health technologies at Apple.

“I think we've amassed already what may be one of the world's largest pieces of data on fitness,” he said. “Our view is, we're just beginning. We think there's a lot to this fitness thing...the impact on health could be profound.”

Dr. Michael McConnell, a professor in cardiovascular medicine at Stanford Medicine, told ABC News the Apple Watch has great potential to drastically change the cardiovascular technology field. He points to the ease-of-use in Apple's product to take measurements and surveys, thanks to the help of Apple's new medical-focused ResearchKit as well as HealthKit, which would offer them "a new way to do medical research."

The pre-launch buzz surrounding the Apple Watch only continues to grow as the April 10 pre-order date, and official launch on April 24, draw closer. Most recently the wearable has been spotted in numerous fitness and fashion magazines, with third-party manufacturers announcing everything from charging stands to carrying cases to secondary battery options for the wrist-worn device.

The segment, which premiered earlier this morning on Good Morning America, is a small preview for a larger piece airing tonight on Nightline at 12:35 AM EST.

Related Roundup: Apple Watch 10
Buyer's Guide: Apple Watch (Neutral)

Popular Stories

iPhone 17 Pro 3 4ths Perspective Aluminum Camera Module 1

iPhone 17 Pro Launching Later This Year With These 12 New Features

Sunday April 13, 2025 7:52 am PDT by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...
Apple 2025 Thumb 1

10 Products Still Coming From Apple in 2025

Friday April 11, 2025 4:14 pm PDT by
Apple may have updated several iPads and Macs late last year and early this year, but there are still multiple new devices that we're looking forward to seeing in 2025. Most will come in September or October, but there could be a few surprises before then. We've rounded up a list of everything that we're still waiting to see from Apple in 2025. iPhone 17, 17 Air, and 17 Pro - We get...
Beyond iPhone 13 Better Triad

Apple's 20th Anniversary iPhone May Finally Go All Screen

Tuesday April 15, 2025 6:31 am PDT by
Apple is preparing a "bold" new iPhone Pro model for the iPhone's 20th anniversary in 2027, according to Bloomberg's Mark Gurman. As part of what's being described as a "major shake-up," Apple is said to be developing a design that makes more extensive use of glass – and this could point directly to the display itself. Here's the case for Apple releasing a truly all-screen iPhone with no...
iOS 19 Roundup Feature

iOS 19 Will Add These New Features to Your iPhone

Tuesday April 15, 2025 7:37 am PDT by
The first iOS 19 beta is less than two months away, and there are already a handful of new features that are expected with the update. Apple should release the first iOS 19 beta to developers immediately following the WWDC 2025 keynote, which is scheduled for Monday, June 9. Following beta testing, the update should be released to the general public in September. Below, we recap the key...
Foldable iPhone 2023 Feature Homescreen

Foldable iPhone Resolutions Leak With Under-Screen Camera Tipped

Monday April 14, 2025 3:12 am PDT by
Apple's upcoming foldable iPhone (or "iPhone Fold") will feature two screens as part of its book-style design, and a Chinese leaker claims to know the resolutions for both of them. According to the Weibo-based account Digital Chat Station, the inner display, which is approximately 7.76 inches, will use a 2,713 x 1,920 resolution and feature "under-screen camera technology." Meanwhile, the...
iPad Pro iPadOS

iPadOS 19 Will Be 'More Like macOS' in Three Ways

Sunday April 13, 2025 6:43 am PDT by
A common complaint about the iPad Pro is that the iPadOS software platform fails to fully take advantage of the device's powerful hardware. That could soon change. Bloomberg's Mark Gurman today said that iPadOS 19 will be "more like macOS." Gurman said that iPadOS 19 will be "more like a Mac" in three ways:Improved productivity Improved multitasking Improved app window management...
Apple Vision Pro with battery Feature Blue Magenta

Vision Pro 2 Rumored to Have Two Key Advantages Over Current Model

Sunday April 13, 2025 7:15 am PDT by
Apple is working on a new version of the Vision Pro with two key advantages over the current model, according to Bloomberg's Mark Gurman. Specifically, in his Power On newsletter today, Gurman said Apple is developing a new headset that is both lighter and less expensive than the current Vision Pro, which starts at $3,499 in the U.S. and weighs up to 1.5 pounds. Gurman said Apple is also...
Apple Bristol Current

An Apple Store in the UK is Permanently Closing Later This Year

Monday April 14, 2025 7:33 am PDT by
Apple has confirmed that it will be permanently closing its retail store in the heart of Bristol, England, and there is no replacement in sight. Apple Bristol in 2023 Apple Bristol will be closing its doors on Saturday, August 9, due to redevelopment plans at the Cabot Circus Shopping Centre, and the adjacent Bristol Shopping Quarter. According to news reports, and a building application, the ...
iPhone 6s MacRumors YouTube

Apple Says These Products Are Now Vintage

Tuesday April 15, 2025 9:53 am PDT by
Apple today updated its vintage products list to add the 2018 Mac mini and the iPhone 6s, devices that will get more limited service and repairs now that they are considered vintage. The iPhone 6s initially launched in 2015, but Apple kept it around as a low-cost device until 2018, which is why it is only now being added to the vintage list. The iPhone 6s had Apple's A9 chip, and it was...

Top Rated Comments

Meandmunch Avatar
132 months ago
I am a freak. Gym never. Jog never, zero days a week.

Can't wait for my watch.
Score: 28 Votes (Like | Disagree)
Sodner Avatar
132 months ago
Anyone who thinks the other smart watches out there like the Pebble are on the same level as the :apple:Watch is sorely mistaken.
Score: 20 Votes (Like | Disagree)
freediverx Avatar
132 months ago
Yet a no time did they think to include GPS in the watch or make it waterproof, i.e. make it a useful sports watch that you can use away from your iPhone. Ah...
The Apple Watch was designed to serve as both a wrist-mounted extension to your iPhone as well as a fitness tracker - all while looking good rather than like some dorky geek toy, and with battery power to last all day.

Adding GPS would have likely killed the all day battery life, or would have required a larger case to accommodate a larger battery.

Making it more water resistant would have required a case designed with gaskets and o-rings around the display, the digital crown, the friends button, the speaker and microphone, and perhaps also the case back containing biometric sensors. Again, this would have made the watch bigger.

A watch without a day's worth of battery power or so bulky that it resembled an Android product would have failed. Good design is all about focusing on the most important goals and making difficult choices.
Score: 8 Votes (Like | Disagree)
GLS Avatar
132 months ago
Anxiously awaiting the Tag Heuer promotional videos where they proclaim how much fitness testing their watches endured.

We all know, however, that Samsung will shove a video on Youtube any day now that shows some disinterested folks using their newest wearable in a fitness type setting
Score: 8 Votes (Like | Disagree)
bbeagle Avatar
132 months ago

However, I am not convinced that the Apple watch really does anything more than other equipment that exists and/or that can be more accurate. Perhaps I am wrong. I just don't see it right now.
The Apple Watch doesn't have to do more to be a success - the Apple Watch is just another way to do the same thing other equipment does, but making it more convenient.

For example, running with music - it's MUCH more convenient to use wireless earbuds and wear a watch than lugging an iPhone on your arm or in your pocket.

Looking at statistics during your run - much more convenient on a watch vs. pulling out a phone (which is difficult when running), or using a FitBit-type device where you can't see stats until you're connected to a computer when you're done.

It's up to the consumer if $350-$1000 is worth this convenience. There are many more.
Score: 7 Votes (Like | Disagree)
ryansimmons323 Avatar
132 months ago
Why does broadcast news/breakfast/daytime television get things so factually incorrect?

They basically rolled Apple Watch, HealthKit and ResearchKit into one thing here.
Score: 7 Votes (Like | Disagree)