How continuous glucose monitors work
A CGM reads glucose from the fluid under your skin every few minutes. Knowing what it measures explains why it sometimes disagrees with a fingerstick.
Glucose and metabolic tech
5 stories, newest first.
Google's watches will report blood pressure and insulin resistance trends
Health Guardian, announced in August 2026, estimates the trends from existing sensors. It does not measure either one.
What the FDA's 2026 wellness rules let your wearable tell you
A January guidance opened the door for watches and rings to estimate blood pressure and glucose without FDA review, as long as they stay away from diagnosis.
A fertility benefit began sending members Oura rings and glucose sensors
Carrot's November 2025 program combined cycle, sleep and glucose data for clinicians to use in care plans.
Oura added meal tracking and glucose readings to its app
The May 2025 features paired the ring with Dexcom's over-the-counter Stelo sensor, sold through Oura for $99.
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