Inogen
Inogen One G5
$2495Cheaper
Released 2019-04
Best Portable Oxygen Concentrators · head-to-head
Inogen One G5 vs DeVilbiss iGo2
A sourced, side-by-side comparison. Inogen One G5 is cheaper at $2495. Every spec and price links to its source.
Drive DeVilbiss Healthcare
DeVilbiss iGo2
$3399
Which is better: the Inogen One G5 or DeVilbiss iGo2?
The Inogen One G5 wins 1 of the 1 specs we compare head to head; the other wins 0. The Inogen One G5 is the cheaper at $2495. The Inogen One G5 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 | Inogen One G5 | DeVilbiss iGo2 |
|---|---|---|
| US price | $2495 | $3399 |
| Brand | Inogen | Drive DeVilbiss Healthcare |
| Released | 2019-04 | — |
| Oxygen output (ml) | 1260 | 1014 |
| Flow settings | 1–6 | 1–5 |
| Weight (lb) | 4.7 | 5 |
| Battery life hr | 13 | 5 |
| Delivery mode | pulse_dose | pulse_dose |
| Noise (dB) | 39 | 41 |
| Faa approved | Yes | Yes |
| Warranty yr | 3 | 5 |
Sources — Inogen One G5: oxygenconcentratorstore.com (verified 2026-08-01). DeVilbiss iGo2: oxygenconcentratorstore.com (verified 2026-08-01).
What's the difference between the Inogen One G5 and DeVilbiss iGo2?
Where the two actually differ on the specs we track (6 of 8). Matching specs are omitted.
- Oxygen output (ml): Inogen One G5 1260 vs DeVilbiss iGo2 1014
- Flow settings: Inogen One G5 1–6 vs DeVilbiss iGo2 1–5
- Weight (lb): Inogen One G5 4.7 vs DeVilbiss iGo2 5
- Battery life hr: Inogen One G5 13 vs DeVilbiss iGo2 5
- Noise (dB): Inogen One G5 39 vs DeVilbiss iGo2 41
- Warranty yr: Inogen One G5 3 vs DeVilbiss iGo2 5