Inogen One G4
- 90-95%
- Portable (Battery-powered)
- 1-3Pulse setting
Philips SimplyGo Portable Oxygen Concentrator
- 90-96%
- Portable (Battery powered)
- 0.5-2LPM
Inogen One G4 and Zen-O Portable Oxygen Concentrator are both Portable (Battery-powered) Portable (Battery-powered) Oxygen Concentrators with purity 90-95 %. However, they differ in areas such as Purity, Type, Continuous Flow and Pulse Flow.
Below is a detailed comparison of Inogen One G4 and Zen-O Portable Oxygen Concentrator to help you understand their specifications, features, advantages, and key differences.
| Compare | ||
|---|---|---|
| Brand | Inogen | GCE Healthcare |
| Rating | ||
| Warranty |
3 year warranty
|
2 year warranty
|
| Purity | 90-95 % | 90-96 % |
| Type | Portable (Battery-powered) | Portable (Battery powered) |
| Continuous Flow | — | 0.5-2 LPM |
| Pulse Flow | 1-3 Pulse setting | 1-6 Pulse setting |
| Weight | 1.27 kg | 4.66 kg |
| Operating altitude | 10000 feet | — |
| Battery backup (at 2 pulse setting) | 2.7 hours | 4 hours |
| Recharge time | 3 hours | 6 hours |
| Backup with external battery pack | 5 hours | 8 hours |
| Oxygen Purity Indicator (OPI) | No | Yes |
| Sound level | 40 db | 38 db |
| Dimensions | 6.5H x 5.91W x 2.68D inch | — |
| Outlet pressure | — | 20.5 psi |
| Oxygen Purity % Analyzer | No | No |
| Indian Voltage Model | Yes | No |
| Loss of Power Alarm | Yes | Yes |
| Company Headquarters | USA | United Kingdom (UK) |
| System Malfunction Alarm | Yes | Yes |
| No Flow Alarm | Yes | Yes |
| US FDA Approved | Yes | Yes |
| FAA Approved | Yes | Yes |
| CE Certified | Yes | Yes |
| Literature | ||
| Brochure | Download Brochure | Download Brochure |
| User manual | Inogen One G4 User Manual | Zen-O Portable Oxygen Concentrator User Manual |
| Service manual | Inogen One G4 Service Manual | - |
Inogen One G4 is listed as a Portable (Battery-powered) oxygen concentrator, while Zen-O Portable Oxygen Concentrator is listed as a Portable (Battery powered) oxygen concentrator.
Inogen One G4 provides pulse flow of 1-3 Pulse setting, while Zen-O Portable Oxygen Concentrator provides pulse flow of 1-6 Pulse setting.
Both models provide medical-grade oxygen, with Inogen One G4 listed at 90-95 % and Zen-O Portable Oxygen Concentrator listed at 90-96 % across their flow range.
Inogen One G4 comes with 3 year warranty, while Zen-O Portable Oxygen Concentrator comes with 2 year warranty.
Inogen One G4 is headquartered in USA, while Zen-O Portable Oxygen Concentrator is headquartered in United Kingdom (UK).
Zen-O Portable Oxygen Concentrator has an Oxygen Purity Indicator while Inogen One G4 lacks this feature. A LED light turns on when purity drops below therapeutic level (typically below 82%).
Neither product has an Oxygen Purity % analyser and lacks this feature. This means none of the machines can display the actual oxygen purity percentage on the screen.
Inogen One G4 weighs 1.27 kg, while Zen-O Portable Oxygen Concentrator weighs 4.66 kg. A lighter model is generally easier to move and handle.
Inogen One G4 is listed as 6.5H x 5.91W x 2.68D inch, while Dimensions information for Zen-O Portable Oxygen Concentrator is not mentioned.


