Hi Cedric,
We're currently working on bringing our Epson SDK to version 8.5 - so the BT300/350 are a good option in terms of SDK support. We also just released our Hololens SDK.
We're focusing heavily in optimizing our SDK for further wearable devices, but don't have an optimized SDK yet.
I hope this helps. Should you need anything further, just let me know anytime.
Greetings
Nicola
FRY cedric