[OJFord]

So you recommend their hardware, and compete with them on software? (Assuming I understood that correctly -) what stops them catching up/replicating your (presumably) better software?

Or perhaps more to the point - the problem you mention in OP seems, as described, like it's already solved by Kardia, what was missing that you had to build?

[rnavara]

Great point, indeed the problem of automated ECG analysis has been around for the last several decades and there's still no automated solution accurate for AFib patients (one of the the hardest categories for making ECG measurements). Our software is specifically trained on AFib ECGs and our specific focus of this market and guiding drug dosing, as well as our clinical expertise in the field gives us our edge. It's a similar reason why startups can do things that Google and Amazon can't :)