February 4, 2026
It's Faster to Charge the Apple Watch Using the 6-Pin Accessory Port [Video]

It's Faster to Charge the Apple Watch Using the 6-Pin Accessory Port [Video]

Posted May 28, 2015 at 4:38am by
The creators of Reserve Strap have posted a video demonstrating the charging of the Apple Watch using the 6-pin accessory port. Notably, charging the watch using the 6-pin port is slightly faster than charging it via induction.

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.


Observations
● 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.


It's Faster to Charge the Apple Watch Using the 6-Pin Accessory Port [Video]

It's Faster to Charge the Apple Watch Using the 6-Pin Accessory Port [Video]
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Comments (3)
Comments are closed for this article.
Roger Melly
Roger Melly - May 29, 2015 at 10:27pm
The Apple Watch battery life is pretty good, 69% left at the end of the day.
gamerscul9870
gamerscul9870 - May 28, 2015 at 2:11pm
I use this with an ampy so that I won't use a wall outlet while always charging and that I never take it off!
stevenlacross
stevenlacross - May 28, 2015 at 11:56am
Inductive charging has always been less efficient than cables. Why is this a surprise to everyone?
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