A wearable sensor that reads glucose automatically, often every few minutes.
A continuous glucose monitor uses a small sensor under the skin to estimate glucose in the fluid between cells, typically every 1–5 minutes. It reveals trends and overnight patterns that finger-sticks miss.
CGMs are what made metrics like time in range and the ambulatory glucose profile practical for everyday use.
General information, not medical advice. Browse the full glossary or the glycemic index of foods.
Learn what the reference numbers mean, then track your own logged readings and their share in your selected range. GMI and estimated A1C are withheld when source and coverage are unvalidated.
Educational content maintained by the SteadyRange. Source and terminology check: September 30, 2026. Independent clinical review is pending; no clinical reviewer credentials are claimed.