I know some people who received free BitHD Razor for promotional testing and they never could connect their device with mobile app.
I had the watch:
https://bitcointalk.org/index.php?topic=5247313Setup / communication with the wallet was never an issue once you got it working. But, it did take me two or three tries to get it to connect, never thought about it till I just saw this. At a guess it's a cheap knockoff BT chip and it just sucked. Since all their devices are really just running the trezor firmware, it's probably just easier to get a trezor....
-Dave