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[ HEAD-TO-HEAD ]

Stelo by Dexcom vs Lingo by Abbott (2026)

Stelo and Lingo are the two FDA-cleared over-the-counter CGMs in the US — the first consumer glucose monitors you can buy without a prescription. Stelo runs on Dexcom G7; Lingo runs on Abbott Libre 3. Both are OTC, both target non-diabetic biohackers, and both are deliberately simpler than the coached programmes (Levels, Nutrisense). The choice comes down to sensor accuracy versus price.

WINNER: Stelo by Dexcom

Stelo wins on hardware accuracy at a small price premium. Lingo wins on cost flexibility — buy single 2-week sensors as needed without subscription.

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.

Abbott7.2 / 10

Lingo by Abbott

OTC CGM (Abbott Libre 3 consumer variant)

Abbott’s Libre hardware sold without a prescription — the simplest entry into CGM at the lowest single-sensor price.

Head-to-head breakdown

  • Sensor accuracy

    Dexcom G7 (Stelo): MARD ~8.2%. Abbott Libre 3 (Lingo): MARD ~9%. Stelo wins marginally — independent comparisons consistently favour Dexcom at rest.

    Stelo by Dexcom

  • Sensor wear time

    Stelo: 15-day wear (longer than standard Dexcom G7). Lingo: 14 days. Tie in practice; slight Stelo edge.

    Stelo by Dexcom

  • Warm-up time

    Stelo: 30 minutes. Lingo: 60 minutes. Stelo back on data faster after each sensor swap.

    Stelo by Dexcom

  • Insight depth

    Stelo: meal-impact + daily time-in-range. Lingo: single "Lingo Count" spike score per meal — deliberately beginner-simple.

    Stelo by Dexcom

  • Price flexibility

    Lingo: $49 per single 2-week sensor, $89 for 4 (~$22/month effective). Stelo: $99/month subscription or $89/month on subscription.

    Lingo by Abbott

  • No subscription required

    Lingo: full functionality with single sensors, no subscription. Stelo: hardware works without subscription but the monthly purchase pattern is the default flow.

    Lingo by Abbott

  • App ecosystem

    Both have clean iOS/Android apps with Apple Health integration. Limited third-party connectors compared with Levels.

    Tie

Choose Stelo by Dexcom

Choose Stelo by Dexcom if sensor accuracy matters more than the last $50/month — you get the same Dexcom G7 hardware as Levels and Nutrisense at a third of the cost.

Choose Lingo by Abbott

Choose Lingo by Abbott if cost is the deciding factor or you want to wear a CGM occasionally rather than continuously — single 2-week sensors at $49 each.

The short version

Stelo wins on accuracy at a small price premium; Lingo wins on cost flexibility for occasional wear. Both are OTC — no prescription, no coaching subscription — which sets them apart from Levels, Nutrisense, Signos and the rest of the premium-tier CGM market.

When Stelo is the right pick

If you want the most accurate consumer CGM hardware available — the same Dexcom G7 sensor underneath Levels and Nutrisense — at roughly a third of those programmes’ cost, Stelo is the right shape. The 30-minute warm-up versus Lingo’s 60-minute matters more than it sounds when you swap sensors every two weeks.

When Lingo is the right pick

If you are not sure CGM will change anything for you and want the cheapest legitimate way to find out, or you plan to wear a CGM occasionally rather than continuously, Lingo is the right shape. $49 single sensors with no subscription beats Stelo’s monthly model on flexibility.

Common questions

Is Stelo more accurate than Lingo?

Yes, marginally. Stelo runs Dexcom G7 (MARD ~8.2%); Lingo runs Abbott Libre 3 (MARD ~9%). In independent comparison against reference plasma glucose, Dexcom edges Abbott consistently at rest. For most non-diabetic biohacker use cases both are accurate enough.

Which is cheaper, Stelo or Lingo?

Lingo is cheaper at the single-sensor entry tier — $49 per 2-week sensor, or $89 for four (~$22/month effective). Stelo is $99/month for two sensors or $89/month on subscription. If you want to wear a CGM continuously, the gap closes; for occasional use Lingo wins on cost flexibility.

Do either require a prescription?

No. Both Stelo and Lingo were FDA-cleared as OTC consumer CGMs in 2024 — the first non-prescription CGMs available in the US. You buy them directly from the manufacturer.

Can I get Stelo or Lingo data into Levels or Nutrisense?

No, not directly. Each programme is hardware-locked to its own app. The underlying sensors are the same physical hardware (Stelo = Dexcom G7 = Levels/Nutrisense; Lingo = Libre 3 = Ultrahuman/Veri/Zoe) but the apps do not cross-read each other’s sensors.

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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