The Oura ring has a ton of sensors in a small form factor. It is...

The Oura ring has a ton of sensors in a small form factor. It is a ring you wear around your finger and uses TinyML on the Edge Impulse Framework. For example, it includes a blood oxygen sensor, an accelerometer sensor, a body temperature sensor, Electrodermal (Skin) Conductivity Sensor,  and an Ultra Violet (UV) Radiation Sensor.

https://ouraring.com/

Version 3 has already been released to market, however there are some upgrades coming this year.
Namely sleep sensor algo upgrade.
The new results - if true would make this thing a clear market leader.  



https://www.hackster.io/news/how-to-shrink-the-apple-watch-for-your-finger-e9ae92899f80

“Building machine learning models for hardware that has little memory, no Internet connectivity and little power, without sacrificing end-user experience, requires specialized compression and intelligent model design capabilities,” explains Jan Jongboom, CTO and co-founder of Edge Impulse.

This new generation of IoT + ML brings AI into our pockets and business machines by shrinking deep learning networks to run thinking models on every kind of hardware, big or small. With this new capability, ML-powered IoT devices could run at less than one milliwatt, making use of scarce resources so efficiently, a device can run on a single battery charge for years, connecting by radios only when needed, temporarily, to convey critical “wake” detection of anomalies, events, sounds, motions, and images. The model determines how devices run when they are on or off and what data is needed to achieve a goal. This new technology will proliferate AI-powered IoT devices, giving IoT the magic it always wanted, and scale to billions of inexpensive and independent sensors. The ability to provide brains to devices everywhere will impact almost every industry: retail, healthcare, transportation, wellness, agriculture, fitness, and manufacturing.


Rob Telson with Edge Impulse - Podcast 7

The 2022 Oura Ring upgrade feels a bit like it may have been injected with some secret sauce ?
This is IMHO and is a clumsy attempt at Dot joining.