Originally an**unced by third-party developers Lane Musgrave and John Arrow back in early March, one of the biggest concerns of the battery-boosting accessory "Reserve Strap" was its use of the Apple Watch's heart rate sensor as a way to provide power to the wearable. Although it was unconfirmed, there was always a possibility of the Reserve Strap obstructing **rmal functions of the heart rate sensor, or causing the Watch to **t function altogether by interfering with skin contact completely.
Last week, after getting their hands on an Apple Watch, Musgrave and Arrow have gone back to the drawing board on the Design of the Reserve Strap, coming up with a new look that acts as more of a traditional Apple-made band without blocking the heart rate sensor at all. The new Reserve Strap aims to use the 6-pin diag**stic port - hidden inside of the band Port on the bottom of the Watch - as the main source of providing power to the device, shirking the heart rate sensor's magnetic inductive charging altogether.
The Original Reserve Strap Design (left) vs the new Design (right)
Finally getting our hands on the Apple Watch has further confirmed the immense value of the Reserve Strap. Since release day, we've been executing ****** of tests on the Apple Watch and have some really exciting news to share today.
We've developed and tested a completely rethought Design that takes advantage of the 6-pin Port underneath the band slide of the Apple Watch. This Port hadn't been deciphered by anyone until **w but we've been able to make significant e**ugh observations so far to warrant shifting our development focus to this new method. We're looking forward to sharing more Design details and technical specification of this new Reserve Strap as soon as we can.
The company claims in its blog posts that its engineers have "been able to independently confirm that the 6-pin Diag**stic Port underneath the Apple Watch case can be used for charging." They continue by also **ting the Diag**stic Port will allow for **t only a higher charge capacity, but faster, more efficient charging times. The blog post also **tes that the new method should improve durability of the strap as a whole and eliminate "any interference with Apple Watch functionality including taptic feedback and heartrate sensors."
Initial renderings of the new Design (left) vs fully realized 3D model (right)
** word was given on the planned Kickstarter for the Reserve Strap, but those interested can still pre-order the device from the company's official website for $249.99. Color options will include white, gray and black, and customers will be able to choose between 38mm and 42mm strap sizes to fit their preferred Apple Watch size.
05-04-2015, 06:15 PM
'Reserve Strap' Debuts New Design Focusing on Apple Watch Diag**stic Port [iOS Blog]
The Original Reserve Strap Design (left) vs the new Design (right)
Initial renderings of the new Design (left) vs fully realized 3D model (right) 
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