Levels vs Ultrahuman M1 — Side-by-Side

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 Stelo, G7 platform (Levels) vs Abbott Libre 3, or Abbott Lingo in the US via M2 Live (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 its smart rings and cross-signal analytics.

Levels or Ultrahuman M1: which is better?

Higher ONDA score: Levels (8.2 vs 7.6)

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 an Ultrahuman ring.

Head-to-head breakdown

Levels vs Ultrahuman M1 — head-to-head comparison by criterion
Criterion	Winner	Why
Sensor accuracy	Tie	Practically equal: maker accuracy figures do not count as evidence, and in an independent head-to-head study (Eichenlaub et al. 2025) the Dexcom G7 platform and FreeStyle Libre 3 were similarly accurate (MARD about 12% vs 11.6% against a lab reference).
Sensor wear time	Levels	Levels (Dexcom Stelo): 15 days. Ultrahuman M1 (Libre 3 / Lingo): 14 days. Near-identical change cadence, slight Levels edge.
Glucose insight depth	Levels	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.
Cross-signal integration	Ultrahuman M1	Ultrahuman M1 composes glucose with HRV, sleep and recovery from an Ultrahuman ring in one timeline — unique cross-modal view. Levels integrates with Oura via Apple Health but it is bolt-on.
Coaching	Levels	Levels leads: neither includes a human coach by default, but Levels' in-app coaching is backed by a deep content library and a medical advisory board; Ultrahuman M1 relies mostly on AI insights (Jade), with performance coaches only in some plans.
App and content	Levels	Levels has a more substantial editorial library backed by its medical advisory board. Ultrahuman is polished but content-lighter.
Price	Tie	Ultrahuman (US, M2 Live on Lingo): from $99/month subscription or $129 for a single 14-day sensor; ring optional. Levels: tiered memberships — $80/year app-only, $399/year Core (1 month CGM), $1,329/year Complete (2 months CGM); extra CGM is an add-on. Which is cheaper depends on how much you wear a sensor.
Standalone usability	Levels	Levels works fully on its own. Most of Ultrahuman M1’s differentiation depends on also owning an Ultrahuman ring.

Choose Levels

Choose Levels if CGM is the central instrument and you want the deepest meal-impact analysis on Dexcom Stelo (G7 platform).

Choose Ultrahuman M1

Choose Ultrahuman M1 if you already own (or plan to own) an Ultrahuman ring 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 is Levels 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 is Ultrahuman M1 the right pick?

If you already own an Ultrahuman ring 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 Dexcom Stelo (built on G7). Ultrahuman M1 if you already own (or plan to own) an Ultrahuman ring and want glucose composing with HRV and sleep in one app.

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

Not on accuracy. The makers report different figures (about 8.2% MARD for G7, about 9% for Libre 3), but in an independent head-to-head study (Eichenlaub et al. 2025) the two were similarly accurate. Most non-diabetic biohacker use cases are well-served by either.

Can I use Ultrahuman M1 without an Ultrahuman ring?

Yes, but most of the platform’s value is the cross-signal view with the ring. Without it, Ultrahuman M1 is an Abbott-sensor 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 in the US (M2 Live on Abbott Lingo) costs from $99/month on subscription, or $129 for a single 14-day sensor. Levels is now a membership — $80 a year app-only, $399 a year for Core with one month of CGM, $1,329 a year for Complete with two months — with extra CGM as an add-on. For occasional CGM blocks Levels is cheaper; for continuous wear, both cost roughly the price of the sensors.