About 6 years ago, I purchased a meter (Fluke size) from Radio Shack that could feed a digital out via USB (serial adapter) for $69. Given that you can now purchase a bluetooth based OBDII reader for $10 on Amazon, it seems as though it's not a stretch to expect a respectable multimeter that can connect via bluetooth for well under $100.
Inexpensive is the title and yes, they are inexpensive, but that brings to mind the old saw 'you get what you pay for.' I'm not sure an osclliscope the size of a wristwatch is useful execpt in a pinch - but maybe I'm just an old codger who likes his larger screens. A lot of these gizmos seem to be small for the sake of being small, not for the sake of functionality. As someone said, 'now that you have taught the dog to talk, what does it have to say?'
I thought it was exciting when companies started offering measurement tools that connected to the iPad, but the oscilloscope watch takes this to a whole new level.
But my question is, who among you would actually connect test leads to the watch while you're wearing it? I suppose it depends on the circuit under test, but I had this humorous vision of a guy testing a high voltage switching regulator with his oscilloscope watch...while still wearing it on his wrist :)