Over the last month we have done extensive charging through the 6 pin accessory port of the Apple Watch in a variety of conditions. We made a short video documenting a charging speed test we performed between the Apple Watch wireless charging cord and our own 6 pin accessory port charging.
● Charging using the 6 pin accessory port is slightly faster than wireless inductive charging.
● No charging icon appears on the Apple Watch during 6 pin accessory charging. This is likely to avoid unnecessary screen clutter when using smart bands. We're accounting for this by including a simple LED on the Reserve Strap to indicate charging state.
● While not apparent in the video, there was less ambient heat radiated on the back of the Apple Watch using 6 pin accessory port charging compared to wireless induction.
Take a look at the video below or click here for more details about the Reserve Strap.