ONDA LIFEBio OS
[ HEAD-TO-HEAD ]

Levels vs Nutrisense vs Stelo (2026)

Levels, Nutrisense and Stelo are the three most-compared CGM programmes for non-diabetic biohackers — all three running on Dexcom G7, the most accurate consumer sensor. Same hardware, three different wrappers: Levels bets on app intelligence, Nutrisense pairs a registered dietitian, Stelo is Dexcom’s own OTC consumer programme without coaching. The decision is purely about what sits above the sensor.

VERDICT: TIE

Three different jobs on the same hardware. Levels for the deepest app insights. Nutrisense for a registered dietitian. Stelo for the same sensor at a third of the cost.

Levels Health8.4 / 10

Levels

CGM coaching programme (Dexcom G7)

The most polished biohacker CGM programme — best-in-class insights at the highest price in the category.

Nutrisense8.0 / 10

Nutrisense

CGM coaching programme (Dexcom G7 + RD coach)

The strongest human-coaching CGM programme — a registered dietitian alongside Dexcom G7 data.

Dexcom7.6 / 10

Stelo by Dexcom

OTC CGM (Dexcom G7 hardware, consumer app)

Dexcom G7 hardware with no prescription gate — the most accurate consumer CGM at the lowest price for it.

Head-to-head breakdown

  • Sensor and accuracy

    All three ship Dexcom G7 — same MARD ~8.2%, same 10–15 day wear. Indistinguishable on hardware.

    Tie

  • Insight depth (app)

    Levels has the deepest meal-impact engine — AUC decomposition, food-by-food ranking, time-in-range views. Nutrisense is competent; Stelo is simpler.

    Levels

  • Human coaching

    Nutrisense: registered dietitian for every subscriber. Levels and Stelo: app-only, no human coach by default.

    Nutrisense

  • Sensor wear time

    Stelo: 15-day Dexcom G7 sensors. Levels and Nutrisense: 10-day. Stelo has the longer wear cycle.

    Stelo by Dexcom

  • Subscription flexibility

    Stelo: pay-as-you-go ($89–$99/month) with no coaching subscription. Levels and Nutrisense: subscription-based.

    Stelo by Dexcom

  • Integration ecosystem

    Levels: Apple Health + Oura + MyFitnessPal. Nutrisense: Apple Health + Cronometer. Stelo: Apple Health only. Levels has the broadest stack.

    Levels

  • Content library

    Levels has the most substantial editorial library backed by its medical advisory board.

    Levels

  • Price

    Stelo: $89–$99/month. Levels: $199/month. Nutrisense: $280–$310/month with RD. Stelo is roughly a third of Levels, a quarter of Nutrisense.

    Stelo by Dexcom

Choose Levels

Choose Levels if you trust app intelligence over human coaching, want the deepest food-by-food insight engine and treat CGM as a self-experiment instrument.

Choose Nutrisense

Choose Nutrisense if accountability through a registered dietitian is what makes the programme work for you — weekly written reviews, in-app messaging, the human layer on top of the data.

Choose Stelo by Dexcom

Choose Stelo by Dexcom if you want the same Dexcom G7 hardware at a third of the long-term cost, with no coaching subscription — OTC and FDA-cleared.

The short version

Same Dexcom G7 sensor, three different wrappers. Pick on what sits above the hardware: deepest app intelligence (Levels), registered dietitian (Nutrisense), or cheapest legitimate access (Stelo).

When Levels is the right pick

If you treat CGM as a serious instrument — running protocols, iterating on meal experiments, tracking time-in-range as a metric — Levels is the right shape. The depth of the insight engine is the value; the $199/month is the cost.

When Nutrisense is the right pick

If you need a person, not an app, helping you interpret the data, Nutrisense is the right shape. The registered dietitian is the value proposition; the $280–$310/month is the cost of the human coaching layer.

When Stelo is the right pick

If you want Dexcom G7 hardware at the lowest legitimate price — no coaching, no premium analytics, just the sensor and a clean app — Stelo is the right shape. It is the cheapest path to ongoing CGM in 2026 and the right starting point for users not sure they want CGM long-term.

Common questions

Which is best — Levels, Nutrisense or Stelo?

Three different jobs on the same Dexcom G7 sensor. Levels for the deepest app insights. Nutrisense for a registered dietitian working through your data weekly. Stelo for the same sensor at a third of the cost without coaching. Pick on the wrapper, not the hardware.

Why are these all so similar?

Because they ship the same physical sensor — Dexcom G7. The accuracy, the warm-up time, the data resolution are identical. What you pay for is the app, the coaching layer (if any), and the integration ecosystem sitting on top of that sensor.

Can I get Levels-style insights on Stelo?

No — Stelo’s app is deliberately simpler, with meal-impact and time-in-range views but without Levels’ AUC decomposition or food-by-food ranking history. If insight depth is the deciding criterion, Stelo is the wrong fit at any price.

Is the Nutrisense dietitian worth the premium?

For users who would use the weekly RD message, yes — accountability and human interpretation are the value. For users who would skip the message anyway, the $80–$110/month over Levels is not justified.

Should I start with Stelo to try CGM?

Yes — Stelo is the cheapest legitimate entry into Dexcom G7 CGM. If you find it useful and want deeper analytics, upgrade to Levels. If you want a coach, Nutrisense. Stelo is the right shape for a no-commitment trial.

See the full ranking

Best Continuous Glucose Monitors for Biohackers (2026)

ONDA ranks the ten best CGMs of 2026 for non-diabetic biohackers — Levels, Nutrisense, Zoe, Stelo, Lingo, Ultrahuman, Signos, Veri, Hello Inside and Supersapiens — scored on insights, accuracy, coaching and value.

→