Early this month I reported that accessory makers were planning on tapping into the Apple Watch’s hidden port for battery straps and faster charging. Not only would that allow companies to avoid having to design a solution with the magnetic, inductive charging system Apple is using, it also meant they wouldn’t have to workaround the sensors on the back of the watch.

Now, the company that first announced plans to use the hidden port, Reserve Strap, has posted a video showing faster charging using the port vs Apple’s charger:

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The video shows Apple Watch charging slightly faster with the hidden port, hitting around 95% charged when Apple’s solution hits 90%.

At the time of its original announcement, the company noted that using the port enabled it to “achieve a higher charge capacity and quicker, more efficient charging times while also improving durability and eliminating any interference with Apple Watch functionality including taptic feedback and heartrate sensors.”

Today the company told us it’s much further along in the design process with its prototypes. Here’s what the current design looks like:

Reserve Strap is up for preorder for $249 with first shipments coming sometime this fall, and we’re sure this will inspire a number of other accessory makers even though we argued against it.

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