Ok - call me STUPID but I went ahead and ordered one of these. :)
Granted I don't honestly expect it to actually DO 1/2 the things it claims (let alone do any of them accurately) however find the device interesting and it currently has a 'impulse buy' price point.
Sadly some/many of these inexpensive Chinese Smart Watch devices can be rather useless without the companion smart phone application which often times comes with a exorbitant monthly 'fee' or 'subscription' for using.
Buyer beware. :)