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Levels vs Ultrahuman M1 (2026)

Levels and Ultrahuman M1 are the two biohacker CGM programmes most often compared after Levels and Nutrisense. Different sensors — Dexcom G7 (Levels) vs Abbott Libre 3 (Ultrahuman) — but the deeper difference is product philosophy. Levels is a glucose-focused insight engine; Ultrahuman is a CGM module inside a broader ecosystem that includes the Ring Air and cross-signal analytics.

VERDICT: TIE

Depends on what you want. Levels for the deepest glucose-only insight engine on the best CGM hardware. Ultrahuman M1 for glucose composed with HRV, sleep and recovery from the Ultrahuman Ring Air.

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.

Ultrahuman7.5 / 10

Ultrahuman M1

CGM programme (Abbott Libre 3) with ring ecosystem

The best ecosystem play — glucose data composed with HRV, sleep and recovery from the Ultrahuman Ring in one app.

Head-to-head breakdown

  • Sensor accuracy

    Levels uses Dexcom G7 (MARD ~8.2%). Ultrahuman M1 uses Abbott Libre 3 (MARD ~9%). Levels has the more accurate sensor.

    Levels

  • Sensor wear time

    Ultrahuman M1 (Libre 3): 14 days. Levels (Dexcom G7): 10 days. Slight Ultrahuman edge on sensor change cadence.

    Ultrahuman M1

  • Glucose insight depth

    Levels has the deeper meal-impact engine — AUC decomposition, food-by-food ranking history, time-in-range views. Ultrahuman is competent but glucose-specific depth is shallower.

    Levels

  • Cross-signal integration

    Ultrahuman M1 composes glucose with HRV, sleep and recovery from the Ring Air in one timeline — unique cross-modal view. Levels integrates with Oura via Apple Health but it is bolt-on.

    Ultrahuman M1

  • Coaching

    Both app-only by default. Neither includes a human coach without a separate tier.

    Tie

  • App and content

    Levels has a more substantial editorial library backed by its medical advisory board. Ultrahuman is polished but content-lighter.

    Levels

  • Price

    Ultrahuman M1: ~$99 per 14-day sensor (no required CGM subscription if you already own the ring). Levels: $199/month including sensors. Ultrahuman is cheaper.

    Ultrahuman M1

  • Standalone usability

    Levels works fully on its own. Most of Ultrahuman M1’s differentiation depends on also owning the Ring Air.

    Levels

Choose Levels

Choose Levels if CGM is the central instrument and you want the deepest meal-impact analysis on Dexcom G7 — the most accurate sensor in the consumer category.

Choose Ultrahuman M1

Choose Ultrahuman M1 if you already own (or plan to own) the Ultrahuman Ring Air and want glucose data composed with HRV, sleep and recovery in one app.

The short version

Levels is the deeper glucose-only programme on the better CGM hardware; Ultrahuman M1 is the better ecosystem play if you already live in the Ultrahuman Ring stack. The decision is whether CGM is the central instrument or one signal among many.

When Levels is the right pick

If you treat CGM as the primary instrument — running structured meal experiments, tracking time-in-range as a serious metric, paying for analytics depth — Levels is the right shape. Dexcom G7 hardware plus the deepest insight engine in the category.

When Ultrahuman M1 is the right pick

If you already own the Ultrahuman Ring Air or plan to, M1 is the right shape because glucose composed with HRV and sleep on one timeline is a meaningful cross-signal view nothing else in the consumer market offers. As a standalone CGM programme it is the wrong choice — go for Levels or Stelo instead.

Common questions

Should I pick Levels or Ultrahuman M1?

Levels if CGM is the deciding job and you want the deepest meal-impact analysis on the most accurate sensor (Dexcom G7). Ultrahuman M1 if you already own (or plan to own) the Ultrahuman Ring Air and want glucose composing with HRV and sleep in one app.

Is Dexcom G7 (Levels) better than Libre 3 (Ultrahuman)?

Marginally. Dexcom G7 sits at MARD ~8.2% versus Libre 3 at MARD ~9% in independent comparison. The gap is consistent but small — most non-diabetic biohacker use cases are well-served by either.

Can I use Ultrahuman M1 without the Ring Air?

Yes, but most of the platform’s value is the cross-signal view with the ring. Without it, Ultrahuman M1 is a Libre 3 wrapper with a competent app — not bad, but not differentiated from Lingo or Veri. The case for it specifically is the ring integration.

Which is cheaper long-term?

Ultrahuman M1 at ~$99 per 14-day sensor (~$215/month if worn continuously, less if intermittently). Levels at $199/month with 10-day Dexcom G7 sensors. Ultrahuman is cheaper, especially if you already own the ring and skip the CGM subscription model entirely.

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.

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