The beautiful Oura ring automatically collects and wirelessly synchronizes data to the Oura app. It measures your physiological signals, with no switches or flashing lights. Just wear it.
The original Ōura ring is the best sleep tracker around so looking forward to the next-gen model! I've seen a preview of their updated app and glad to see they are surfacing a lot more data that was previously only accessible via their API. Ability to take HRV measurements at any point during the day is a great improvement.
Smaller form factor, longer battery life, better charging, on-demand HRV, open API
No GSR sensors added?