3 posts found
Smart rings promise workout tracking, but the physics of finger blood flow makes PPG nearly useless during exercise. Here is why the heart rate data is often fabricated, and why Pulsyn does not pretend otherwise.
Most hardware startups take VC money before they know if anyone wants their product. Pulsyn's $500K Kickstarter campaign is a demand test with no safety net.
Oura filed for its $11 billion IPO with 5 million subscribers and $2 billion in projected revenue. The catch: its core business model is a subscription paywall on health data that competitors already offer for free, sitting on top of a canceled Pentagon contract and an active class-action lawsuit.
