news.ycombinator.com• May 16, 2025• 1 min read
Launching Rizz: real-time health ring – building next-gen non-invasive CGMHi HN,I’m one of the builders behind Rizz, a new smart ring that tracks glucose*(CGM Required), stress, HRV, temperature, sleep, and activity — in real time.It integrates with Libre glucose sensors and uses AI to predict glucose trends 60 minutes ahead, assess food impact in real-time, and flag early stress or sleep disruptions. It’s already being used in 100+ countries, including many low- and middle-income regions where traditional CGM is inaccessible.But this is just the beginning.Next, we’re building a non-invasive CGM — no needles, no sensors on the skin — to help 1 billion people with diabetes or pre-diabetes. Our approach is unique: we’re combining multiple proven technologies (optical, thermal, RF) with a few proprietary methods that haven’t been publicly deployed before, aiming for sub-$100/year accessibility with clinical-grade accuracy.We’ve spent the last 8+ years building CGM systems (via Ambrosia Systems) and are now pushing into what we believe will be the next major lea