As far as I can tell, there is one option for buying the vest: pay $399.99. There are two options for some 'algorithm' service, which seems to me a lazy way to

As far as I can tell, there is one option for buying the vest: pay $399.99. There are two options for some 'algorithm' service, which seems to me a lazy way to make a product like this. Where is this algorithm service located? If it's not in the jacket, that doesn't sound reliable. If it is, then what am I paying for when you already sold me the device?