Dexcom’s 'Stelo': a consumer glucose sensor, not a type 1 tool
Dexcom’s over-the-counter Stelo biosensor added AI-assisted food logging with a nutrition database in early 2026.
Dexcom’s Stelo is another consumer glucose sensor making headlines, this time for a smarter food-logging feature added in early 2026. Like other wellness sensors, Stelo is made for people who do not use insulin, and it does not alarm for low glucose. It is a US over-the-counter product, not sold in the UK, and it is not a tool for managing type 1. For type 1 readers it is worth understanding as part of a growing consumer glucose market, not as a device for your own care.
- Stelo is a non-prescription glucose sensor Dexcom sells in the US to people who are not on insulin (type 2, prediabetes, or general wellness).
- It has no low-glucose alarms, so it does not do the hypo-warning job a prescribed CGM (continuous glucose monitor) does in type 1.
- The 2026 update added AI-assisted food logging that gives a nutritional breakdown of meals, which is a wellness feature, not a safety one.
- It is not available in the UK and is not intended for type 1, so this is market context, not a device to seek out.
What Stelo actually does
Stelo is Dexcom’s over-the-counter sensor, launched in the US as the first glucose biosensor you can buy there without a prescription. It is aimed at people managing type 2 diabetes without insulin, people with prediabetes, and health-curious users who want to see how meals and activity move their glucose. The early-2026 news is an upgrade to its food logging, which now provides a nutritional breakdown of meals using a food database.
That is a useful feature for the audience it targets. It helps someone see a pattern between what they eat and what their glucose does, without the sensor ever needing to guide a medication decision.
Why type 1 readers should not rely on it
The same limit applies to Stelo as to other consumer sensors: no low-glucose alarms. In type 1, the alarm that warns you when you are low or dropping is the feature that matters most, and a wellness sensor deliberately leaves it out. Stelo is not designed to inform insulin dosing, and it is not sold as a diabetes-management tool.
For UK readers there is a second point: Stelo is a US product and is not available here anyway. So this is best read as a sign of where consumer glucose sensing is going, with more people wearing sensors out of curiosity, rather than anything that changes your own care. The sensor to trust for type 1 is the medical CGM your team prescribes.