Will the Oura ring stop needing a charger?

No. The temperature difference between a finger and the air is small, so body heat would only stretch battery life between charges.

Does a patent mean Samsung or Oura will release these features?

No. A patent or application shows what a company is working on, and most never reach a product.

Possibly. Amazfit filed the patent in 2022, so a version of it may already run on current watches, but Amazfit has not said so.

Seven filings this week cover body heat charging, sleep age, interval tracking and owner recognition. Each…