Apple Watch Shown Charging Through 6-Pin Diagnostic Port in New Video

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Earlier this month, the team behind the battery-boosting "Reserve Strap" for the Apple Watch suggested it was possible to use the hidden 6-pin diagnostic port in the Apple Watch to charge the device, and today they've backed up their claims with a video demonstration.

In the video, an Apple Watch charging on a standard inductive charger is depicted next to one said to be charged through a power supply connected to the 6-pin port on the device. The watch being charged through the port charges slightly faster than the watch on an inductive charger, reaching a 95 percent charge at the same point the other watch reaches a 90 percent charge.


The team behind the Reserve Strap for the Apple Watch plans to use the port to create a band with a backup battery inside, allowing the Apple Watch to be charged while it's on the wrist. The product is still in the early stages of development, but it's available for pre-order for $250 from the company's website.

The Reserve Strap is not currently certified under Apple's recently released accessory program for the Apple Watch, which will allow manufacturers and accessory makers to create approved third-party bands for the device. Apple has outlined a specific set of rules for Apple Watch bands, preventing them from blocking any sensors on the device, but its guidelines do not mention bands that access the 6-pin port. For that reason, Apple's position on Reserve Strap's use of the 6-pin port is unclear.

Apple has not confirmed what purpose the 6-pin port serves, but speculation has suggested it is used by the company for diagnostic purposes. Apple may also be using the port internally for charging, as detailed in documents covering the function of its in-store Apple Watch displays.

It is not known if Apple has plans to expand the usage of the 6-pin port in the future, but TechCrunch has hypothesized that the port could eventually be used for "smart band" accessories to bring additional functionality to the Apple Watch.

Related Roundups: Apple Watch, watchOS 6, watchOS 7
Buyer's Guide: Apple Watch (Caution)

Top Rated Comments

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68 months ago
Was anyone else expecting this thing to be leaps and bounds faster than the normal method of charging?
Score: 16 Votes (Like | Disagree)
Avatar
68 months ago
To be honest, that wasn't much difference and certainly not worth $250(!!!).

I can wear my Apple Watch all day, lay it on the charger at night and have it ready the next day without ever running into battery issues. I can't see this strap taking off.
Score: 10 Votes (Like | Disagree)
Avatar
68 months ago

I’ll stick with my iMac, iPhone and iPad, thereby saving myself $17,000 on an Apple Watch.

Three computers that tell me the time is enough.


Great addition to this thread
Score: 5 Votes (Like | Disagree)
Avatar
68 months ago

I’ll stick with my iMac, iPhone and iPad, thereby saving myself $17,000 on an Apple Watch.

Three computers that tell me the time is enough.


I doubt you could afford the top of the line model. the sensible decision would be one of the sports, but...
Score: 5 Votes (Like | Disagree)
Avatar
68 months ago
I like this idea and all, but if Apple finds a way to make the port not work for charging, these guys are going to be screwed.
Score: 5 Votes (Like | Disagree)
Avatar
68 months ago

Good, I hope this feature can be used soon because I still haven't figured out how to charge my watch with the inductive charger that comes with it. My battery died the day after I received mine and it's been dead ever since, because MacRumors hasn't written a good how-to article on how to charge the watch.


You're the lucky one; at least you got a day's use out of it.

Think of all those who haven't even managed to take it out of the box due to MR's refusal to write an unboxing guide.
Score: 3 Votes (Like | Disagree)

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