DEPLOY

Buying guide

Happy Ring vs Stelo in 2026

Comparing 2 humanoid robots across availability, pricing, capabilities, and verified deployments. Current as of 2026.

Key differences

  • Stelo has more verified real-world deployments (1 vs 0).
Attribute
No image on file
Happy RingView full model page →
Trying a Dexcom G7 sample for my Diabadass #diabetes #t1d #dexcom #dexcomg7 #typeonediabetes
SteloView full model page →
ManufacturerHappy HealthDexcom
Form factorbiometricbiometric
Maturitycommercialcommercial
Autonomy——
Availabilityinternal-onlyenterpriseshipping-nowshipping
PriceNot announced$89-$99 (actual sale price)
Capability claims——
Brain——
Verified deployments01Dexcom
Privacy practices—4biometric-storage, training-data-use, third-party-sharing, data-deletion-control
Sources on file711

Editorial summaries

Happy Ring

The Happy Ring (from Happy Health Inc, Austin, Texas; CEO Dustin Freckleton, MD) is the FDA-cleared, service-gated archetype of the ring sub-cohort, and the sharpest verified-vs-claimed counterpoint to RingConn: the same finger-ring form factor and similar sleep-apnea capability claims, but a diametrically opposite verification posture. Its cleared sleep-apnea algorithm is the regulatory substance, with two dated FDA 510(k) clearances: K240236 (October 8, 2024) for retrospective remote monitoring of physiological parameters in adults at home or in healthcare facilities; and K242224 (June 18, 2025) for a Home Sleep Test that processes the ring's signals for clinician-interpreted diagnosis of sleep disorders such as obstructive sleep apnea and insomnia, ages 22+, under the direction of a trained healthcare provider (clinician-directed, not autonomous diagnosis). It is not a standalone retail ring: it is sold only bundled into the clinician-reviewed, insurer-billed 'Happy Sleep' home-sleep-test service, so there is no published consumer price. Cap-flags: a 97% agreement with polysomnography is company-reported with no peer-reviewed citation; the 'brain biometrics' marketing is not substantiated by any named EEG hardware; and funding is a $60M Series A (August 2022, ARCH Venture Partners) with no later round surfaced, an early-stage state.

Stelo

Dexcom's Stelo is the first-ever FDA-cleared over-the-counter (no-prescription) glucose biosensor (De Novo, March 5, 2024; US launch August 26, 2024): a 15-day continuous glucose monitor for adults 18+ not on insulin (type 2 not on insulin, plus non-diabetic users tracking how diet and exercise affect glucose). It is the generative-AI end of the glucose cell: Weekly Insights run on Google Cloud's Vertex AI and Gemini, with AI photo meal-logging and personalized daily recommendations, the AI substance that carries it across the biometric boundary. Pricing is about $89 for a 2-week sensor on a biweekly subscription model (around $99/month). From DexCom (NASDAQ: DXCM), Stelo is the OTC product line, separate from the prescription G7. Cap-flag: the cleared indication is an OTC CGM for adults 18+ not on insulin; it is explicitly NOT cleared for problematic hypoglycemia and has no low-glucose alerts, so it should not be read as a diabetes-management device.

Common questions

What is the difference between Happy Ring and Stelo?
Happy Ring and Stelo are both biometric robots on the DEPLOY registry. They differ in maker, maturity, price, verified deployments, and how much of their autonomy is independently verified. See the table above for the full head-to-head; each figure is sourced.
Which has more verified deployments, Happy Ring or Stelo?
Stelo has more verified deployments (1) on the DEPLOY registry than Happy Ring (0). DEPLOY counts a deployment only when confirmed at a named site with a primary source.

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