RE:I saw a deviceThere sort of the same but not , I think those devices are for someone who has diabetes would purchase that where as the scout was never intended for the public to purchase, it's more to relieve the Heath care of the flood of people and is used as to tell you if your at risk, as for the mechanics I couldn't say but what I can say is there must be something different or it wouldn't of got this far cause Apple is not a company you want to take on if your violating a patent or something legal