# Happy Ring

Manufacturer: [Happy Health](/companies/happy-health)  
Category: biometric

## Summary

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.

## Top line

> Happy Ring is internal use only (not for retail), no capability claims are on file, the model has no verified field deployments in the registry, and no incidents are on record.

## Readiness

- **Availability** (internal-only): Internal use only (not for retail).
- **Price honesty** (no-price): No price points on file for Happy Ring.
- **Capability honesty** (no-claims): No reviewed capability claims on file for Happy Ring.
- **Real-world use** (commercial): Maturity: commercial. No verified deployments in the registry.
- **Safety record** (no-incidents): No incidents on record. No verified deployments either.

## What it claims to do

_No reviewed capability claims on file._

## Price

_No reviewed price points on file._

## Real-world use

_No verified deployments on file for Happy Ring._

## Safety record

_No incidents on record. No verified deployments either, so the absence is uninformative._

## Privacy

_No privacy practices disclosed or on file for Happy Ring._

## Specs

- **notes**: [{"label":"INCLUDE (biometric-primary + cleared AI algorithm)","value":"Finger PPG/temperature/SpO2/accelerometer biometric-primary device whose value is the cleared sleep-apnea algorithm. Would it exist without the AI? Yes-but-degraded (raw sensor logger). Clearly biometric form_factor."},{"label":"Verified-vs-claimed COUNTERPOINT to RingConn (the editorial anchor)","value":"Happy Ring is the within-cohort GENUINELY-FDA-CLEARED sleep-apnea exemplar: two real, precisely-dated 510(k) clearances (K240236, K242224) for clinician-mediated diagnosis support. This is the verified counterpoint to RingConn, whose sleep-apnea/AHI feature is NOT FDA-cleared and whose 'FDA-cleared' framing was aggregator-drift conflation. Note the precise scope: K242224 facilitates clinician-interpreted diagnosis (a Home Sleep Test under provider direction), NOT autonomous device diagnosis - do not extend beyond the cleared indication."},{"label":"Cap-flag: 97% PSG agreement = COMPANY-REPORTED","value":"The ~97% agreement-to-gold-standard-polysomnography figure appears in Happy Health press releases / happysleep.com only; no peer-reviewed publication found. Treat as company-reported, not peer-reviewed. (happysleep.com/tech itself states the softer '10x more accurate than a watch.')"},{"label":"Cap-flag: commercial state is SERVICE-GATED / limited","value":"Maturity=commercial because the FDA-cleared service is live and insurer-billed, but availability is thin: no standalone consumer retail sale, no published consumer price, service-gated through the Happy Sleep home-sleep-test offering; $60M Series A (Aug 2022) with no later round surfaced -> early-stage / quiet company. Tier reflects the cleared live service; the cap-flag prevents over-reading FDA clearance as broad market presence."},{"label":"Cap-flag: 'brain biometrics' marketing","value":"Marketing references 'brain activity / brain biometrics,' but no EEG sensor is itemized on the spec page (4 LEDs / 4 electrodes / accelerometer / 2 temp sensors). Treat 'brain biometrics' as marketing-forward, not substantiated by named hardware."},{"label":"Re-verify 2026-06-03","value":"The 'quiet since 2022' framing is now STALE: Happy Health is commercially ACTIVE. The Happy Sleep service is live across 48 US states, in-network with major insurers (Cigna/Aetna/UnitedHealthcare/BCBS/Medicare) plus a self-pay option; 2026 distribution partnerships have surfaced - OpenLoop (Apr 14 2026, national telehealth network) and EnsoData (EnsoSleep PPG SaMD integration); headcount ~244 (Feb 2026, aggregator-sourced). Availability remains SERVICE-GATED (sold bundled in the insurer-billed/self-pay Happy Sleep diagnostic, NOT standalone retail; no published ring price) - confirmed-current. NO new funding round since the $60M Series A (Aug 2022) - verified-absent. No distress / wind-down signals."}]
- **specs**: Happy Ring: finger-worn smart ring. Sensors: 4 LEDs, 4 electrodes, 3-axis accelerometer, 2 temperature sensors -> heart rate, HRV, SpO2, skin temperature, respiratory rate, activity, sleep staging. Cleared sleep-apnea algorithm is the regulatory substance. Two FDA 510(k) clearances: K240236 (Oct 8 2024) = retrospective remote MONITORING of physiological parameters in adults at home or in healthcare facilities; K242224 (Jun 18 2025) = Home Sleep Test that processes ring signals for clinician-interpreted DIAGNOSIS of sleep disorders such as obstructive sleep apnea and insomnia, ages 22+, under direction of a trained healthcare provider. Company: Happy Health Inc (Austin TX); CEO Dustin Freckleton MD; $60M Series A (Aug 2022, ARCH Venture Partners), no later round surfaced. Distribution: sold ONLY bundled into the clinician-reviewed 'Happy Sleep' home-sleep-test service (insurer-billed), NOT a standalone retail ring; no published consumer price.
- **formFactor**: biometric (biometric-primary smart ring; FDA-cleared sleep-apnea / sleep-disorder DIAGNOSIS support via clinician-reviewed home sleep test)

## What's under the hood

_No brain on file for Happy Ring._

## Frequently asked questions

### Is the Happy Ring actually available for purchase?

Not available to consumers. In internal use by Happy Health.

_Source: [FDA 510(k) K242224: Happy Ring Home Sleep Test (decision Jun 18 2025; facilitates at-home diagnosis of OSA/insomnia, ages 22+, under clinician direction)](https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfPMN/pmn.cfm?ID=K242224)._

### What does the Happy Ring cost?

Not announced.

### Where is the Happy Ring being used?

No verified field deployments on record.

### Is the Happy Ring safe?

No incidents on record, but with no verified field deployments either, the absence is uninformative.

### How does the Happy Ring handle privacy?

No privacy practices disclosed or on file for Happy Ring.

### Who makes the Happy Ring?

Happy Ring is made by Happy Health, based in Austin, Texas, USA.

_Source: [FDA 510(k) K242224: Happy Ring Home Sleep Test (decision Jun 18 2025; facilitates at-home diagnosis of OSA/insomnia, ages 22+, under clinician direction)](https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfPMN/pmn.cfm?ID=K242224)._

## Manufacturer

- [Happy Health (https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfPMN/pmn.cfm?ID=K242224)](https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfPMN/pmn.cfm?ID=K242224)

## Compared to

- [Ultrahuman Ring (Air / Pro)](/consumer/models/ultrahuman-ring-air)
- [Stelo](/consumer/models/stelo)
- [Withings ScanWatch](/consumer/models/withings-scanwatch)

## Sources

1. [FDA 510(k) K242224: Happy Ring Home Sleep Test (decision Jun 18 2025; facilitates at-home diagnosis of OSA/insomnia, ages 22+, under clinician direction)](https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfPMN/pmn.cfm?ID=K242224)
2. [FDA clears Happy Ring (first clearance K240236, Oct 8 2024; retrospective remote monitoring of physiological parameters)](https://aasm.org/fda-clears-happy-ring-by-happy-health/)
3. [Happy Ring earns second FDA clearance (Home Sleep Test; sold via clinician-reviewed Happy Sleep home-sleep-test service; insurer-covered)](https://www.biospace.com/press-releases/happy-ring-earns-second-fda-clearance)
4. [Happy Ring technology (4 LEDs, 4 electrodes, 3-axis accelerometer, 2 temperature sensors; HR/HRV/SpO2/temperature/respiratory rate/sleep staging)](https://happysleep.com/tech)
5. [Happy Health raises $60M Series A (Aug 2022, led by ARCH Venture Partners; Austin TX; CEO Dustin Freckleton MD)](https://www.finsmes.com/2022/08/happy-health-raises-60m-in-series-a-funding.html)
6. [OpenLoop expands into sleep diagnostics with Happy Sleep (Apr 14 2026; national telehealth distribution)](https://openloophealth.com/news/openloop-expands-into-sleep-diagnostis-with-happy-sleep)
7. [Happy Ring maker + EnsoData offer home sleep testing solution (EnsoSleep PPG integration)](https://sleepreviewmag.com/sleep-diagnostics/home-testing/home-apnea-testing/happy-ring-maker-ensodata-offer-home-sleep-testing-solution/)

_Canonical: https://deploy.report/models/happy-ring_