Inogen
Inogen One G5
$2495
Released 2019-04
Best Portable Oxygen Concentrators · head-to-head
Inogen One G5 vs ResMed Mobi
A sourced, side-by-side comparison. ResMed Mobi is cheaper at $2295. Every spec and price links to its source.
ResMed
ResMed Mobi
$2295Cheaper
Released 2019-01
Which is better: the Inogen One G5 or ResMed Mobi?
The Inogen One G5 wins 1 of the 1 specs we compare head to head; the other wins 0. The ResMed Mobi is the cheaper at $2295. Get the Inogen One G5 for the stronger spec sheet, the ResMed Mobi 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 | Inogen One G5 | ResMed Mobi |
|---|---|---|
| US price | $2495 | $2295 |
| Brand | Inogen | ResMed |
| Released | 2019-04 | 2019-01 |
| Oxygen output (ml) | 1260 | — |
| Flow settings | 1–6 | 1–4 |
| Weight (lb) | 4.7 | 5.5 |
| Battery life hr | 13 | 8.6 |
| Delivery mode | pulse_dose | pulse_dose |
| Noise (dB) | 39 | 38.2 |
| Faa approved | Yes | Yes |
| Warranty yr | 3 | 5 |
Sources — Inogen One G5: oxygenconcentratorstore.com (verified 2026-08-01). ResMed Mobi: oxygenconcentratorstore.com (verified 2026-08-01).
What's the difference between the Inogen One G5 and ResMed Mobi?
Where the two actually differ on the specs we track (5 of 8). Matching specs are omitted.
- Flow settings: Inogen One G5 1–6 vs ResMed Mobi 1–4
- Weight (lb): Inogen One G5 4.7 vs ResMed Mobi 5.5
- Battery life hr: Inogen One G5 13 vs ResMed Mobi 8.6
- Noise (dB): Inogen One G5 39 vs ResMed Mobi 38.2
- Warranty yr: Inogen One G5 3 vs ResMed Mobi 5