# React Health Luna G3 vs Transcend Micro Auto CPAP: specs and price compared

A sourced, side-by-side comparison of the React Health Luna G3 (React Health) and Transcend Micro Auto CPAP (Somnetics) among cpap machines. Transcend Micro Auto CPAP is the cheaper of the two at $769.

## Side by side

| Spec | React Health Luna G3 | Transcend Micro Auto CPAP |
| --- | --- | --- |
| US price | $849 | $769 |
| Brand | React Health | Somnetics |
| Pressure range cmh2o | 4–20 (0.5 cmH2O increments) | 4–20 |
| Machine type | APAP (Auto-CPAP), fixed CPAP mode available | APAP (Auto CPAP), switchable to fixed CPAP mode |
| Humidifier type | Integrated heated humidifier (360 mL max fill) with pre-heat function and heated tubing | Waterless AirMist HME (heat-and-moisture exchanger); no integrated water tank |
| Noise level (dB) | 28 | 27 |
| Weight (lb) | 3.75 | 0.48 |
| Data connectivity | Integrated cellular modem (React Health Luna QR app) | Bluetooth to the MySleepDash app (24hr/7-day/30-day/90-day compliance reports) |
| Ramp feature | Yes | Yes |
| Mask compatibility | — | Universal — works with any mask with a standard 22mm connection |
| Altitude adjustment | — | Yes |

## Key differences

- Pressure range cmh2o: React Health Luna G3 4–20 (0.5 cmH2O increments) vs Transcend Micro Auto CPAP 4–20
- Machine type: React Health Luna G3 APAP (Auto-CPAP), fixed CPAP mode available vs Transcend Micro Auto CPAP APAP (Auto CPAP), switchable to fixed CPAP mode
- Humidifier type: React Health Luna G3 Integrated heated humidifier (360 mL max fill) with pre-heat function and heated tubing vs Transcend Micro Auto CPAP Waterless AirMist HME (heat-and-moisture exchanger); no integrated water tank
- Noise level (dB): React Health Luna G3 28 vs Transcend Micro Auto CPAP 27
- Weight (lb): React Health Luna G3 3.75 vs Transcend Micro Auto CPAP 0.48
- Data connectivity: React Health Luna G3 Integrated cellular modem (React Health Luna QR app) vs Transcend Micro Auto CPAP Bluetooth to the MySleepDash app (24hr/7-day/30-day/90-day compliance reports)

## Sources

- React Health Luna G3: https://www.reacthealth.com/product/luna-g3-cpap-device (reacthealth.com, verified 2026-08-01)
- Transcend Micro Auto CPAP: https://mytranscend.com/product/transcend-micro-auto-cpap/ (mytranscend.com, verified 2026-08-01)

Canonical: https://frontdeskreview.com/gear/cpap-machines/react-health-luna-g3-vs-transcend-micro/
Cite: Per The Front Desk Review, React Health Luna G3 ($849) vs Transcend Micro Auto CPAP ($769) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/cpap-machines/react-health-luna-g3-vs-transcend-micro/
License: CC BY 4.0.