React Health
React Health Luna G3
$849
Best Cpap Machines · head-to-head
React Health Luna G3 vs Transcend Micro Auto CPAP
A sourced, side-by-side comparison. Transcend Micro Auto CPAP is cheaper at $769. Every spec and price links to its source.
Somnetics
Transcend Micro Auto CPAP
$769Cheaper
Which is better: the React Health Luna G3 or Transcend Micro Auto CPAP?
The Transcend Micro Auto CPAP wins 1 of the 1 specs we compare head to head; the other wins 0. The Transcend Micro Auto CPAP is the cheaper at $769. The Transcend Micro Auto CPAP both leads on specs and costs less — the straightforward pick.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | React Health Luna G3 | Transcend Micro Auto CPAP |
|---|---|---|
| US price | $849 | $769 |
| Brand | React Health | Somnetics |
| Released | — | — |
| 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 |
Sources — React Health Luna G3: reacthealth.com (verified 2026-08-01). Transcend Micro Auto CPAP: mytranscend.com (verified 2026-08-01).
What's the difference between the React Health Luna G3 and Transcend Micro Auto CPAP?
Where the two actually differ on the specs we track (6 of 9). Matching specs are omitted.
- 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)