Apple Watch Diagnostic Port Spotted in Apple Promo Videos

Last week, we heard reports that a hidden "diagnostic port" was present on early Apple Watches currently in testing. The TechCrunch report indicated the port was being used for diagnostic purposes.

The port has a 6-dot brass contact array inside the groove for the ‘bottom’ strap connector slot. Several sources have confirmed its existence and placement to me. It is very similar to the connector for the Lightning connector in iPhones, as that connector currently only uses 6 of its 8 available pins. Apple recently began opening up the Lightning port for use by third parties. A source says that this port is currently for diagnostic purposes only — but that there is nothing preventing it from being a connection port for future accessories.

The port was spotted by our forum members in a number of the new Apple Watch promo videos that Apple released today.

URH3egN
Matthew Panzarino, the original author of the report, confirmed today that the port still exists, but he remains uncertain if it will ship in the final version:


The Apple Watch will begin shipping in April with pre-orders starting on April 10th.

Related Roundup: Apple Watch 11
Buyer's Guide: Apple Watch (Buy Now)

Popular Stories

iphone air thickness

Apple Said to Cut iPhone Air Production Amid Underwhelming Sales

Friday October 17, 2025 8:29 am PDT by
Apple plans to cut production of the iPhone Air amid underwhelming sales performance, Japan's Mizuho Securities believes (via The Elec). The Japanese investment banking and securities firm claims that the iPhone 17 Pro and iPhone 17 Pro Max are seeing higher sales than their predecessors during the same period last year, while the standard iPhone 17 is a major success, performing...
iOS 26 Feature

iOS 26.1 to iOS 26.4 Will Add These New Features to Your iPhone

Saturday October 18, 2025 11:00 am PDT by
iOS 26 was released last month, but the software train never stops, and iOS 26.1 beta testing is already underway. So far, iOS 26.1 makes both Apple Intelligence and Live Translation on compatible AirPods available in additional languages, and it includes some other minor changes across the Apple Music, Calendar, Photos, Clock, and Safari apps. More features and changes will follow in future ...
iOS 26

iOS 26.0.2 Update for iPhones Coming Soon

Friday October 17, 2025 7:35 am PDT by
Apple's software engineers continue to internally test iOS 26.0.2, according to MacRumors logs, which have been a reliable indicator of upcoming iOS versions. iOS 26.0.2 will be a minor update that addresses bugs and/or security vulnerabilities, but we do not know any specific details yet. The update will likely be released by the end of next week. Last month, Apple released iOS 26.0.1,...
HomePod mini and Apple TV

Apple's Next Rumored Products: New HomePod Mini, Apple TV, and More

Thursday October 16, 2025 9:13 am PDT by
Apple on Wednesday updated the 14-inch MacBook Pro, iPad Pro, and Vision Pro with its next-generation M5 chip, but previous rumors have indicated that the company still plans to announce at least a few additional products before the end of the year. The following Apple products have at one point been rumored to be updated in 2025, although it is unclear if the timeframe for any of them has...
iPhone Siri Glow

Some Apple Employees Have 'Concerns' About iOS 26.4's Revamped Siri

Sunday October 19, 2025 7:39 am PDT by
iOS 26.4 is expected to introduce a revamped version of Siri powered by Apple Intelligence, but not everyone is satisfied with how well it works. In his Power On newsletter today, Bloomberg's Mark Gurman said some of Apple's software engineers have "concerns" about the overhauled Siri's performance. However, he did not provide any specific details about the shortcomings. iOS 26.4 will...
Apple iPad Pro hero M5

New iPad Pro Has Six Key Upgrades Beyond M5 Chip

Saturday October 18, 2025 10:57 am PDT by
While the new iPad Pro's headline feature is the M5 chip, the device has some other changes, including N1 and C1X chips, faster storage speeds, and more. With the M5 chip, the new iPad Pro has up to a 20% faster CPU and up to a 40% faster GPU compared to the previous model with the M4 chip, according to Geekbench 6 results. Keep in mind that 256GB and 512GB configurations have a 9-core CPU,...
14 inch MacBook Pro Keyboard

New 14-Inch MacBook Pro Has Two Key Upgrades Beyond the M5 Chip

Thursday October 16, 2025 8:31 am PDT by
Apple on Wednesday updated the 14-inch MacBook Pro base model with an M5 chip, and there are two key storage-related upgrades beyond that chip bump. First, Apple says the new 14-inch MacBook Pro offers up to 2× faster SSD performance than the equivalent previous-generation model, so read and write speeds should get a significant boost. Apple says it is using "the latest storage technology," ...
m4 macbook air blue

M5 MacBook Air Coming Spring 2026 With M5 Mac Studio and Mac Mini in Development

Thursday October 16, 2025 3:57 pm PDT by
Apple plans to launch MacBook Air models equipped with the new M5 chip in spring 2026, according to Bloomberg's Mark Gurman. Apple is also working on M5 Pro and M5 Max MacBook Pro models that will come early in the year. Neither the MacBook Pro models nor the MacBook Air models are expected to get design changes, with Apple focusing on simple chip upgrades. In the case of the MacBook Pro, a m...
14 inch MacBook Pro Keyboard

M5 Chip Achieves Impressive Feat in 14-Inch MacBook Pro Speed Test

Friday October 17, 2025 7:10 am PDT by
The first alleged benchmark result for the M5 chip in the new 14-inch MacBook Pro has surfaced, allowing for some performance comparisons. Based on a single unconfirmed result uploaded to the Geekbench 6 database today, the M5 chip has pulled off an impressive feat. Specifically, the chip achieved a score of 4,263 for single-core CPU performance, which is the highest single-core score that...

Top Rated Comments

troop231 Avatar
139 months ago
Thank you for finally mentioning the linked thread and connector :) Oh, and using my pic! :D
Score: 7 Votes (Like | Disagree)
dmx Avatar
139 months ago
I hope it isn't there/used to verify that bands are Apple Certified.
Score: 7 Votes (Like | Disagree)
troop231 Avatar
139 months ago
Looks to me more like a place for the audio sounds to come out, like the ports on the bottom of the iPhone.

Also.... if you think Apple is going to have a Marketing video with the ports on it and they AREN'T gonna be on the production model? you are mistaken. Apple would never do that.

Does little good to put 6 holes for sound if said holes will be completely covered up by the band's connector.
Score: 6 Votes (Like | Disagree)
troop231 Avatar
139 months ago
No? How about the iPhone 4 and 4S "bumpers" ?

Outside of that.... the point was that you can still hear audio even through an Otterbox covering the entire audio holes.

Where else is the sound coming out of... if not out of those port holes?
Apple didn't obstruct the iPhone 4 sound and mic locations at all with their bumpers:

apple watch diagnostic port spotted image

Maybe you should've read the linked thread in the article: https://forums.macrumors.com/showthread.php?t=1853605

to find this pic of the mic and speaker location:

apple watch diagnostic port spotted image
Score: 5 Votes (Like | Disagree)
troop231 Avatar
139 months ago
hmmm kind like how they still work when an iPhone is in a an Otterbox or a LifeProof case?

Apple doesn't obstruct their own cutouts
Score: 4 Votes (Like | Disagree)
C DM Avatar
139 months ago
Lol, I love when the "flat earthers" come out with their theories on how a diagnostic port is actually a plot to destroy a vibrant ecosystem of bands that would aide adoption of Apple Watch in a huge way, by making them MUCH more personal & customizable than any "open" Android Wear product!

Yup.... makes perfect sense.
Apple does it with other hardware like Lightning connetors. Sure it's not the same exact thing, and perhaps not likely, but it's not as crazy of a possibility as some might want to make it out to be. I guess it just all remains to be seen.
Score: 2 Votes (Like | Disagree)