Editor's Note: APYs listed in this article are up-to-date as of the time of publication. They may fluctuate (up or down) as the Fed rate changes. CNBC Select will update as changes are made public.

I tested the Oura Ring 5 and own the previous model. Here's my take on whether upgrading is right for you. Nasha Addarich Martínez Head of Editorial Initiatives and Data Journalism Nasha is the Head ...