React Health
React Health Luna G3
$849Cheaper
Best Cpap Machines · head-to-head
React Health Luna G3 vs Apex Medical iCH Auto
A sourced, side-by-side comparison. React Health Luna G3 is cheaper at $849. Every spec and price links to its source.
Apex Medical
Apex Medical iCH Auto
$1299
Which is better: the React Health Luna G3 or Apex Medical iCH Auto?
The Apex Medical iCH Auto wins 1 of the 1 specs we compare head to head; the other wins 0. The React Health Luna G3 is the cheaper at $849. Get the Apex Medical iCH Auto for the stronger spec sheet, the React Health Luna G3 to spend less.
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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 | Apex Medical iCH Auto |
|---|---|---|
| US price | $849 | $1299 |
| Brand | React Health | Apex Medical |
| Released | — | — |
| Pressure range cmh2o | 4–20 (0.5 cmH2O increments) | 4–20 (0.5 cmH2O increments) |
| Machine type | APAP (Auto-CPAP), fixed CPAP mode available | APAP (Auto CPAP) with Pressure Variation Algorithm (PVA) |
| Humidifier type | Integrated heated humidifier (360 mL max fill) with pre-heat function and heated tubing | Integrated heated humidifier (300 mL water capacity, 6 patient-adjustable settings) |
| Noise level (dB) | 28 | 28 |
| Weight (lb) | 3.75 | 2.51 |
| Data connectivity | Integrated cellular modem (React Health Luna QR app) | SD card + USB only (no wireless/cloud connectivity) |
| Ramp feature | Yes | Yes |
| Mask compatibility | — | — |
| Altitude adjustment | — | Yes |
Sources — React Health Luna G3: reacthealth.com (verified 2026-08-01). Apex Medical iCH Auto: cpapstoreusa.com (verified 2026-08-01).
What's the difference between the React Health Luna G3 and Apex Medical iCH Auto?
Where the two actually differ on the specs we track (4 of 9). Matching specs are omitted.
- Machine type: React Health Luna G3 APAP (Auto-CPAP), fixed CPAP mode available vs Apex Medical iCH Auto APAP (Auto CPAP) with Pressure Variation Algorithm (PVA)
- Humidifier type: React Health Luna G3 Integrated heated humidifier (360 mL max fill) with pre-heat function and heated tubing vs Apex Medical iCH Auto Integrated heated humidifier (300 mL water capacity, 6 patient-adjustable settings)
- Weight (lb): React Health Luna G3 3.75 vs Apex Medical iCH Auto 2.51
- Data connectivity: React Health Luna G3 Integrated cellular modem (React Health Luna QR app) vs Apex Medical iCH Auto SD card + USB only (no wireless/cloud connectivity)