3 posts found
Your smart ring does not measure sleep stages. It measures heart rate and motion, then guesses. Here's how the guess works, why the industry pretends otherwise, and why Pulsyn tells you the truth.
On-device AI means your health data never leaves your phone. Here is the architecture, the constraints, and why it makes subscriptions unnecessary.
Every smart ring app ships your biometric data to a server before showing you your own sleep score. The cloud isn't there for your convenience. It's there for their business model.
