Inogen One G3 vs Inogen Rove 4 Portable Oxygen Concentrator
Both are Inogen pulse-dose concentrators, so the choice comes down to flow range versus weight. The One G3 gives you five settings and up to 9 hours on a double battery, but it weighs 4.8 lbs. The Rove 4 weighs 2.9 lbs and is built around air travel, but it tops out at four settings. The Rove 4's lowest listed price is $1,775.00 at Vital Care USA as of November 1, 2026; no price was given for the One G3, so compare its current store prices on Deal.ai before deciding.
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Inogen One G3
Choose the Inogen One G3 if you need a fifth flow setting or the longest runtime per charge, and you don't mind carrying 4.8 lbs.
- Five flow settings suit higher prescriptions
- Double battery runs up to 9 hours
- 3-year standard warranty
- Runs on AC, DC or battery, 100-240V
- Carry bag, cannula and humidifier support included
- 4.8 lbs is heavy to carry all day
- No wheels
- No stated FAA approval for in-flight use
- Battery recharge takes 2-4 hours
What separates them
| Inogen One G3 | Inogen Rove 4 Portable Oxygen Concentrator | |
|---|---|---|
| Weight | 4.8 lbs with single battery | 2.9 lbs with standard battery |
| Flow settings | Five pulse-dose settings (1-5) | Four pulse-dose settings (1-4) |
| Maximum output | 1-5 LPM pulse dose | Up to 840 mL/min, about 4 LPM equivalent |
| Battery runtime | Up to 4.5 hrs single, up to 9 hrs double | Up to 5 hrs 49 min on extended 8-cell battery at setting 1 |
| Noise | 39 dBA | 39 dBA at setting 2 |
| FAA air travel approval | Not stated in the given specs | Approved for carriage and use in flight |
| Warranty and service life | 3-year standard warranty | Up to 8 years expected service life; warranty length not stated |
Price history
- Inogen One G3: lowest $1,899.00 on Nov 1 at My Medical Outlet.
- Inogen Rove 4 Portable Oxygen Concentrator: lowest $1,775.00 on Nov 1 at Vital Care USA; $1,775.00 on Nov 2.
Prices at every store
Inogen One G3
- Help Medical SuppliesCheck price at Help Medical Supplies
- My Medical OutletCheck price at My Medical Outlet
- o2assist.comCheck price at o2assist.com
Inogen Rove 4 Portable Oxygen Concentrator
- Help Medical SuppliesCheck price at Help Medical Supplies
- On the Go Portable OxygenCheck price at On the Go Portable Oxygen
- Vital Care USACheck price at Vital Care USA
Specs compared
| Spec | Inogen One G3 | Inogen Rove 4 Portable Oxygen Concentrator |
|---|---|---|
| Weight | 4.8 lbs. (includes single battery) | 2.9 lbs (with standard battery) |
| Power Source | AC power, Battery, DC power | DC Power (For mobile use in car/airplane) |
| Voltage | 100-240V | 100-240V |
| Filter Type | Molecular sieve | Grofstoffilters |
| Oxygen Flow | Five flow settings 1, 2, 3, 4, 5 | — |
| Power | AC Power Supply 100-240V, 50-60Hz | — |
| Battery Duration | Up to 4.5 hours | — |
| Battery Recharge Time | approximately 2-4 hours with AC or DC power | — |
| Double Battery Duration | Up to 9 hours | — |
| Noise Level |
What reviewers say
Inogen One G3
Owners of the Inogen One G3 generally report it is light enough to carry and quiet enough for everyday use, and many praise the battery life for outings. Common complaints center on pulse-dose limits, battery replacement cost, and the price of accessories.
- Easy to carry at under 5 lbs
- Quiet operation
- Reliable battery life for errands and travel
- Simple controls and readable display
- Pulse dose does not suit every prescription
- Replacement batteries are expensive
- Accessories and cannulas add cost
- Recharge time feels long
Inogen Rove 4 Portable Oxygen Concentrator
Owners report the Rove 4 holds up after almost a year of daily use, with easy filter changes and steady flow at altitude. They describe it as light, quiet and reliable, with no odd alarms or battery problems.
Questions and answers
- Which is better for air travel?
- The Rove 4. It is FAA approved for carriage and use in flight and weighs 2.9 lbs. The G3's given specs do not state FAA approval, so confirm with the airline before flying with it.
- Which has longer battery life?
- The One G3 with its double battery, up to 9 hours. The Rove 4's extended 8-cell battery reaches up to 5 hrs 49 min at setting 1.
- Is the Rove 4 worth the extra over the G3?
- Only if you fly or carry it often. The Rove 4 saves about 1.9 lbs and is FAA approved, but the G3 adds a fifth setting, a 3-year warranty and longer runtime. Compare current prices for both on Deal.ai.
- Which suits a higher oxygen prescription?
- The One G3, which goes to setting 5. The Rove 4 stops at setting 4, about 840 mL/min. Ask your clinician which setting your prescription needs.
- Which is quieter?
- They are rated the same, 39 dBA. The Rove 4 figure is at setting 2, and the G3's is not tied to a setting in the given specs.
- Which lasts longer?
- The Rove 4 is rated for up to 8 years of expected service life. The G3 backs its unit with a 3-year standard warranty.