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Inogen One G3 vs G4 vs G5

Portable oxygen concentrators like the Inogen One have been life-changing for people who need supplemental oxygen. They provide the freedom to move around at home and on-the-go without being tethered to bulky oxygen tanks.

But with several models like the G3, G4 and G5 now available, figuring out which Inogen One is right for you can get confusing.

This guide will compare the key features, benefits, accessories and cost of the Inogen One G3, G4 and G5 portable oxygen concentrators. We'll help you decide which model best fits your oxygen needs, lifestyle and budget.

What this article covers:

Overview of the Inogen One Models

The Inogen One portable oxygen concentrators are designed to be lightweight, compact and easy to use. When comparing 5l vs 10l oxygen concentrator, Inogen One devices stand out in their category. They separate oxygen from room air to provide a medical-grade flow of high-purity oxygen to the user, distinguishing them from liquid oxygen vs oxygen concentrator systems.

inogen g4 vs g5

Some key similarities between the models:

  • Long battery life from 2 to 8 hours per battery
  • Weigh between 2.8 to 4.9 pounds
  • FAA approved for air travel
  • Ultra quiet operation
  • Easy to use controls
  • Same great oxygen quality and reliability

If you're looking for a portable oxygen concentrator comparison, then comparing the Inogen One G3, G4 and G5 can be valuable:

Comparing the Inogen One G3, G4 and G5

Feature Inogen One G3 Inogen One G4 Inogen One G5 (2019) Inogen One G5 (2022)
Release Year 2014 2016 2019 2022
Weight 4.9 lbs 2.8 lbs 4.7 lbs 4.7 lbs
Battery Types Lithium ion 14.4V Lithium ion 14.4V Lithium ion 14.4V Lithium ion 14.4V
Battery Life (optional Double Battery) Up to 5 hrs Up to 8 hrs Up to 6.5 hrs Up to 8 hrs
Flow Settings Intelligent delivery 1-3 Intelligent delivery 1-3 Intelligent delivery 1-6 Intelligent delivery 1-6
Oxygen Concentration 90% - 3% /+ 6% 90% - 3% /+ 6% 90% - 6% /+ 3% 92.1% - 2%/+ -1%
Dimensions 7.2" x 3" x 8.3" 5.91" x 3.26" x 8.19" 7.2" x 2.7" x 7.2" 7.2" x 2.7" x 7.2"
Sound Level (Setting 2) 43 dB 41 dB 38 dB 30 dB
WiFi/Bluetooth No No Bluetooth Bluetooth
Mobile App No No Yes Yes
Warranty 3 years 3 years 3 years 3 years

Inogen One G3

The simply go mini vs inogen g4 debate remains in the industry. However, the G3 is the original Inogen One model that revolutionized portable oxygen therapy starting in 2004. It offers a lightweight single-solution design that's easy to use at home or on the go.

comparing inogen one g3, g4, and g5

G3 Key Features:

  • Weighs 4.9 pounds
  • 3 intelligent delivery flow settings 1 to 3
  • Up to 5 hours of battery life per battery
  • Single and double battery options
  • Battery recharges in 2-3 hours
  • Easy to read touch keypad controls
  • Easy carry handle
  • 12-cell or 24-cell battery options
  • 3-year warranty

The G3 is best suited for users who only need up to a setting of 3 medical-grade oxygen flow and don't require higher oxygen settings. It's the lightest weight model at just 4.9 pounds.

The small size and long 5 hour battery life make it super portable for travel. It fits easily under airline seats or in carry-ons.

While it lacks some newer features of the G4 and G5 like bluetooth connectivity, the G3 model is still popular for its simplicity, reliability and lower cost.

Inogen One G4

The G4 builds on the success of the original G3 model with enhanced features. It's lighter and more compact.

G4 Key Features:

  • Weighs only 2.8 pounds
  • 3 intelligent delivery flow settings from 1 to 3 
  • Up to 8 hours of battery life per battery
  • Recharges battery in 2-3 hours
  • Large, color touchscreen interface
  • 3-year warranty

With its smaller size and reduced weight than the G3, the G4 is one of the most portable oxygen concentrators available.

It can provide a higher oxygen flow up to a setting of 3 to accommodate changing breathing needs.

The large touchscreen makes monitoring and adjusting oxygen delivery simpler.

It's ideal for an active lifestyle at home or frequent travel.

differences among inogen one g3, g4, and g5

Inogen One G5

The G5 is Inogen's latest model released in 2020. It provides some technology upgrades while retaining Inogen's trusted reliability.

G5 Key Features:

  • Lightest weight at 4.7 pounds
  • Most compact size for easier portability
  • Up to 8 hours battery life per battery
  • 6 oxyen flow settings
  • Large touch button interface
  • Bluetooth connectivity
  • App tracking and monitoring
  • Single, double or external battery options
  • 3 year warranty

The G5 has the most compact and portable design yet from Inogen. It is their quietest model with minimal noise while operating.

With an impressive 8 hours of battery life per battery, the G5 allows you to stay on the move longer between charges.

It shares the G4's high oxygen capacity up to 6 LPM and connectivity features.

The large buttons make the touch screen easy to control even with reduced dexterity. For those wanting the longest battery life from their portable Inogen One, the G5 is the best choice.

Comparing G3 vs G4 vs G5

To recap the key differences:

  • The G3 is the lightest, simplest model but limited to 3 flow settings. Best for users only needing up to 3 LPM.
  • The G4 offers a good balance of light weight, compact size and robust features. It can supply higher oxygen flows up to 3 LPM.
  • The G5 is the quietest and provides the longest battery life up to 8 hours per battery. It has the most advanced technology in the most portable form.

Beyond oxygen conserving device vs concentrator, no matter which model you select, you can count on Inogen to provide high-quality, reliable oxygen you can trust.

How to Choose Between Inogen Models

Here are some key questions to help decide:

  • What is your prescribed oxygen flow rate? If you only need 1-3 LPM, the G3 may be the best value. If you need up to 6 settings of oxygen go with the Inogen One G5
  • How long will you need oxygen per day? For occasional use, the G3 provides reliable oxygen up to 5 hours per battery. For extended daily use, the G5's 8 hour battery will last longer between charges.
  • How much will you travel? Frequent flyers may prefer the more compact G4 or G5 that take up less space.
  • Do you want connectivity features? If you'll benefit from bluetooth and the mobile app, choose the G4 or G5 model.
  • What's your budget? The G3 is the most affordable model. The G4 provides robust features for only a slightly higher price. The G5 is the premium model at the highest price.

Contact Main Clinic Supply’s oxygen experts with any questions to decide which Inogen One is your perfect travel companion. Call Main Clinic Supply at 1-800-775-0942

which is best  inogen one g3, g4, or g5

Acquiring Your Inogen Portable Oxygen Concentrator

Once you've decided on the right Inogen model for your needs, there are a few options to acquire it:

  • Used sales - Save money buying a used Inogen One in excellent condition
  • New sales - Purchase a brand new Inogen One at full retail price
  • Insurance coverage - Medicare and many private insurances may cover part of the cost

No matter how you get your Inogen One, you'll gain convenience, freedom and better quality of life having supplemental oxygen wherever you go.

The Takeaway

Whichever model you choose - the Inogen One G3, G4 or G5 - you can breathe easier with a lightweight, portable oxygen concentrator from a leading brand.

Compare the key features, oxygen capacity, battery life, size, noise level and price to select the best option for you needs and lifestyle.

Consult your doctor and Main Clinic Supply to decide between the G3 vs G4 vs G5 models. Then start regaining your independence by taking your oxygen supply anywhere!

Main Clinic Supply Contact Information for Inogen Authorized One Sales, Support, and Service

Toll-Free Phone Number Sales: 1-800-775-0942

Toll-Free Phone Number for Service and Support: 1-800-595-3551

Email Address for  Sales: sales@mainclinicsupply.com

Email Address for  Sales: service@mainclinicsupply.com

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