I test drove one from Hollywoodivers about 8 months ago. It seemed to work just fine. My ultimate reasons to not buy it were it was bulkier on my arm that I prefer (I currently use an Aeris Epic), it was impossible to read the screen near and on the surface in sunlight (later found out that I could have turned up the screen brightness but didn’t know how at the time), and the wrist strap was too slippery and the computer kept sliding around no matter how tight I made it. So, yes they are available in the US, and no I didn’t like it for the $, but I only made two dives on it. Not sure if this helps.