Dexcom Stelo
The first over-the-counter continuous glucose monitor in the US. A 15-day skin-worn sensor that turns a black-box variable — your glucose response to food, stress and sleep — into a graph you can act on.

The first over-the-counter continuous glucose monitor in the US. A 15-day skin-worn sensor that turns a black-box variable — your glucose response to food, stress and sleep — into a graph you can act on.

The lowest-friction way to turn glucose into an actionable metric. Non-diabetics should treat it as a 15–30 day learning tool, not a permanent wear.
A small enzymatic electrode in interstitial fluid oxidises glucose to produce a current proportional to concentration. The transmitter streams readings to your phone via BLE every 15 minutes.
MARD (mean absolute relative difference) in the ~10% range vs venous blood glucose — best-in-class for consumer CGM. Interstitial lag makes rapid spikes appear ~5 minutes late.
Native Stelo app; data export to Apple Health and Google Health Connect. Third-party integrations via Dexcom API and platforms like Levels, Nutrisense and Signos.
Glucose data stored in Dexcom cloud; can be exported as CSV. HIPAA-aligned handling.