Unlike its prescription-only sibling, the G7, Stelo doesn't require a prescription, and it's not intended for people on insulin. It's about the size of a quarter with tiny prongs that go just under the skin and are essentially painless. Once applied, Stelo pairs with your phone and delivers glucose readings every 15 minutes. That's less frequent than prescription CGMs, but more than enough to show how food, activity, sleep and stress affect your glucose.
The Oura fitness ring and the Stelo continuous glucose monitor (CGM) now connect. For the past month, I've been wearing the Oura Ring on a finger and the CGM on my arm. Together, they've given me a more complete picture of how sleep, stress, exercise and, of course, food affect blood sugar. I wrote about Stelo in January. What's new is that it now integrates with the Oura Ring, which I've recently started using for the first time.