Wireless charges for GS7 that works with Gear S2 as well

[cguanes]

Anybody knows a fast Wireless charges that works with both Samsung GS7 and Gear S2?

I have the Samsung EP-PG920I (wireless charger for GS7) but it wont charge the Gear S2 (it detect the S2 but it won't charge), I would like to have just one for both at office.

Thanks

 

[Cricket Jiminy]

I've tried a few wireless chargers, Samsung brand or non-Samsung. The best I get is a flicker of charging, non-sustaining. I figured I am stuck sitting the watch in its chair.

What I would REALLY love would be a thin wireless charger that would slip under the watch (between my wrist and the watch as I wear it) so I can plug it in to charge without taking it off.