Levels Health vs Dexcom Stelo: Which Is Better in 2026?

These two products answer different questions. Dexcom Stelo answers "what is my glucose doing?" — it's an FDA-cleared, no-prescription biosensor from the most clinically established name in CGM, at roughly $99 a month with no subscription commitment. Levels answers "what should I do about it?" — layering Zone Score meal grading and food-glucose correlation on top of sensor data, at a much steeper combined cost of $199/month for software plus $75–150/month for sensors. For most first-time users, we recommend starting with Stelo. It's the lowest-friction, lowest-cost way to get clinical-grade glucose data, and if you're reasonably self-sufficient you can learn a lot just watching your own curves after meals. Levels is the better choice for committed self-optimizers who know they want software doing the interpretive work — building a personal food response library rather than leaving analysis to you. The gap in monthly cost is large enough that the software has to earn it, and it only does if you engage with it daily.

In daily use, Stelo feels like a utility and Levels feels like a program. Stelo's app is deliberately minimal: you see your glucose curve, time-in-range style context, and not much else. There's no meal scoring, no coaching layer, and limited export options to third-party health platforms — a real constraint if you like piping data into other tools. The upside is nothing nags you; you glance at the curve after lunch and move on.

Levels expects participation. You log meals, and the app grades each one with a Zone Score, surfacing patterns like which breakfasts spike you and which don't. That feedback loop is the product — skip logging and you're paying a premium for a glucose graph.

On hardware, Stelo carries Dexcom's long clinical track record, which is reassuring even though all consumer CGMs should be treated as trend tools for non-diabetic use rather than precision instruments.

Over a year, the cost difference can exceed $2,000.

Choose Dexcom Stelo if you're CGM-curious and want the cheapest, simplest path to clinical-grade glucose data — especially for a first experiment, since there's no prescription and no subscription lock-in.

Choose Stelo also if you're self-sufficient with health data and would rather interpret your own curves than pay for software to do it.

Choose Levels if you've decided glucose optimization is a long-term project and you want best-in-class meal grading and food-glucose correlation doing the analytical heavy lifting — and the roughly 3x monthly cost is acceptable.

Skip both if you want human coaching; neither includes dietitian support.

A practical middle path we like: run Stelo for a month or two to see whether glucose data actually changes your eating, then upgrade to Levels only if you find yourself wanting deeper analysis. Both are credible options from serious companies — the choice is really about how much interpretation you want to buy versus do yourself.