Full specifications, battery options, G4 comparison, and real-world performance of the ultra-lightweight Inogen Rove 4
Product Review | Main Clinic Supply
Full specifications, battery options, G4 comparison, and real-world performance of the ultra-lightweight Inogen Rove 4
Written by Mark Luther, CTO & Certified Oxygen Specialist at Main Clinic Supply • Updated February 2026
Inogen Rove 4: Fast Facts
- Weight: 2.8-2.9 lbs (standard battery); ~3.4 lbs (extended battery)
- Dimensions: 5.83" × 2.64" × 7.5"
- Flow Settings: Pulse dose 1-4, up to 840 mL/min oxygen output
- Sound Level: 39 dBA at setting 2
- Battery Options: 4-cell (~3 hrs), 8-cell (~5 hrs 45 min) at setting 1
- Service Life: Best-in-class 8-year expected service life
- FAA Approved: Yes, for all commercial flights
- Successor to: Inogen One G4
- MSRP: $2,995 (promotional pricing frequently available)
- Warranty: 3 years (concentrator) / 1 year (accessories)
The Inogen Rove 4 is the lightest portable oxygen concentrator in Inogen's current lineup and one of the lightest on the market at just 2.8 pounds. Released in fall 2024 as the successor to the Inogen One G4, the Rove 4 delivers pulse dose oxygen across four settings with Inogen's patented Intelligent Delivery Technology, all in a package small enough to fit in a purse or small bag.
For oxygen users whose prescription falls within settings 1-4, the Rove 4 offers an unmatched weight advantage. It is the device that disappears into your daily routine rather than defining it.
Overview and Design
The Rove 4 improves on the G4 in every measurable category: an additional flow setting (four vs. three), higher maximum output (840 mL/min vs. 630 mL/min), longer expected service life (8 years), and improved battery options. The result is a device that delivers meaningfully more oxygen in a package that remains essentially pocket-sized.
At 5.83" × 2.64" × 7.5", the Rove 4 is compact enough to carry in the included shoulder bag without attracting attention. The unit features simple, intuitive controls with a clear LCD display showing flow setting, battery level, and device status. Bluetooth connectivity enables monitoring via the Inogen Connect app on iOS and Android devices.
Full Specifications
| Specification | Detail |
|---|---|
| Model Number | IS-401 |
| Weight (standard battery) | 2.8-2.9 lbs (1.3 kg) |
| Weight (extended battery) | ~3.4 lbs (1.5 kg) |
| Dimensions | 5.83" L × 2.64" W × 7.5" H |
| Oxygen Delivery | Pulse dose (Intelligent Delivery Technology) |
| Flow Settings | 1, 2, 3, 4 |
| Maximum Output | 840 mL/min |
| Oxygen Concentration | 90% ±3% |
| Sound Level | 39 dBA at setting 2 |
| AC Power Input | 100-240V, 50/60 Hz (auto-sensing) |
| DC Power Input | 12V vehicle outlet |
| Expected Service Life | 8 years |
| FAA Approved | Yes |
| FDA Classification | Class II Medical Device |
| Bluetooth | Yes (Inogen Connect app) |
| Sieve Beds | User-replaceable |
Battery Options and Life
The Rove 4 offers three battery configurations, giving users flexibility to match battery weight and runtime to their daily plans.
| Battery Type | Weight Added | Runtime at Setting 1 | Best For |
|---|---|---|---|
| 4-Cell (Standard) | Lightest | Up to 3 hours | Short errands, minimal weight priority |
| 8-Cell (Intermediate) | Moderate | Up to 5 hours 45 min | Half-day outings, most users' daily needs |
Rove 4 vs. Inogen One G4 Comparison
| Feature | Inogen One G4 | Inogen Rove 4 |
|---|---|---|
| Flow Settings | 1-3 | 1-4 |
| Maximum Output | 630 mL/min | 840 mL/min |
| Weight | 2.8 lbs | 2.8-2.9 lbs |
| Battery Options | 2 (4-cell, 4⁺-cell, 8-cell) | 2 (4-cell, 4⁺-cell, 8-cell) |
| Expected Service Life | 5 years | 8 years |
| Bluetooth | No | Yes (Inogen Connect) |
| Status | Discontinued (legacy) | Current model |
The Rove 4 represents a substantial upgrade from the G4: an additional flow setting, 33% higher maximum output, 60% longer expected service life, and Bluetooth connectivity, all at essentially the same weight.
Rove 4 vs. Rove 6: Which to Choose
This is the most common question our oxygen specialists answer. The decision comes down to your prescription and your weight priorities.
| Factor | Rove 4 | Rove 6 |
|---|---|---|
| Weight | 2.8 lbs | 4.8 lbs |
| Flow Settings | 1-4 | 1-6 |
| Max Output | 840 mL/min | 1,260 mL/min |
| Max Battery Life | ~5 hrs 45 min | ~13 hrs |
| MSRP | $2,995 | $3,295 |
| Best For | Settings 1-4, ultra-light priority | Settings 1-6, all-day battery |
Who Should Buy the Inogen Rove 4
- Users prescribed pulse dose settings 1-4 who want the absolute lightest POC
- Frequent travelers who count every ounce in their carry-on
- Users who carry their POC in a purse, small bag, or hip bag
- Active users who need oxygen for errands, social events, and day trips
- Budget-conscious buyers who want Inogen quality at a lower price than the Rove 6
- Users pairing a portable POC with a home concentrator for nighttime use
Warranty and Service
The Rove 4 comes with a 3-year manufacturer's warranty on the concentrator and 1-year on accessories. Inogen also offers a Lifetime Warranty option. As an Inogen Authorized Service Center, Main Clinic Supply provides same-day repairs with overnight return shipping from our Rochester, Minnesota facility.
Related Resources
About the Author
Mark Luther
Chief Technology Officer (CTO) & Certified Oxygen Specialist
14+ Years at Main Clinic Supply | Rochester, Minnesota
Mark Luther has dedicated over 14 years to the technical advancement and service of portable oxygen concentrators at Main Clinic Supply in Rochester, Minnesota. As CTO, Mark leads the Independent Authorized Service Center, where he oversees a team of specialized technicians focused on the maintenance, repair, and configuration of the Inogen Rove and G-series platforms.
Certified Inogen Technical Support
Mastery of the internal diagnostics and repair of the Inogen Rove 6, Rove 4, and legacy G5 systems.
Oxygen Therapy Configuration
Specialized in tailoring high-priority medical equipment to meet the specific flow requirements of seniors and travelers.
Preventative Maintenance
Architect of Main Clinic Supply's "Worry-Free" service protocols that extend the life of portable oxygen devices.
At Main Clinic Supply, our technical philosophy is simple: Accuracy saves lives. My goal is to ensure that every patient receives a device that is technically perfect and backed by a service bench that understands the equipment inside and out. We don't just sell oxygen concentrators; we ensure they perform when you need them most.
— Mark Luther, CTO
Frequently Asked Questions
How much does the Inogen Rove 4 weigh?
The Rove 4 weighs approximately 2.8 to 2.9 pounds with the standard 4-cell battery, making it one of the lightest portable oxygen concentrators available. With the extended 8-cell battery, it weighs approximately 3.4 pounds.
How long does the Inogen Rove 4 battery last?
The 4-cell standard battery provides up to 3 hours at setting 1. The 8-cell intermediate battery provides up to 5 hours 45 minutes at setting 1. Higher settings reduce battery life.
What is the difference between the Inogen Rove 4 and Rove 6?
The Rove 4 weighs 2.8 lbs with settings 1-4 (840 mL/min). The Rove 6 weighs 4.8 lbs with settings 1-6 (1,260 mL/min). Choose the Rove 4 for minimal weight at settings 1-4. Choose the Rove 6 for higher settings or longer battery life.
Is the Inogen Rove 4 FAA-approved?
Yes. The Rove 4 meets all FAA acceptance criteria and is approved for use on all commercial flights.
Are Inogen G4 batteries compatible with the Rove 4?
Yes. Inogen G4 and Rove 4 batteries are fully compatible with each other. Most accessories are also interchangeable between the two units, with the exception of the AC power supply, which is not compatible.
Can the Inogen Rove 4 be used during sleep?
Yes. Intelligent Delivery Technology detects breathing patterns during sleep. When connected to AC power, it runs continuously overnight. For continuous flow during sleep, pair with a home concentrator.
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Disclaimer: This information is for educational purposes only. Portable oxygen concentrators are FDA-cleared Class II medical devices that require a prescription. Always consult your physician before purchasing oxygen equipment. Prices are MSRP as of February 2026; promotional pricing may be available. Main Clinic Supply is a factory-certified portable oxygen concentrator service center with active repair certifications for all leading brands, including Inogen. For medical emergencies, call 911.