Detailed comparison of Inogen One and Philips SimplyGo portable oxygen concentrators for travelers. Compare battery life, weight, FAA approval, oxygen output, price, and real user experiences. Expert recommendations for different travel needs.
Inogen vs Philips POCs: Complete 2025 Comparison for Air Travel
Choosing between Inogen and Philips portable oxygen concentrators for air travel is one of the most important decisions for oxygen-dependent travelers. Both manufacturers offer FAA-approved devices, but they differ significantly in weight, battery life, oxygen delivery, and travel convenience.
This comprehensive comparison helps you choose the right POC for your travel needs, lifestyle, and medical requirements.
Overview: Inogen vs. Philips Portable Oxygen Concentrators
Inogen: The Travel Specialist
Company Focus: Lightweight, travel-optimized POCs Signature Feature: Ultra-lightweight design Best For: Frequent travelers prioritizing portability Popular Models: Inogen One G3, G4, G5, Rove 6
Philips Respironics: The Versatility Leader
Company Focus: Dual-mode POCs (pulse and continuous flow) Signature Feature: Continuous flow capability Best For: Users needing 24/7 oxygen including sleep Popular Models: SimplyGo, SimplyGo Mini
Head-to-Head Comparison: Popular Models
Lightweight Pulse-Flow POCs
Inogen One G5 vs. Philips SimplyGo Mini
Feature | Inogen One G5 | Philips SimplyGo Mini |
---|---|---|
Weight | 4.7 lbs | 5 lbs |
Flow Settings | 1-6 (pulse) | 1-5 (pulse) |
Max Output | 1260 ml/min | 1000 ml/min |
Battery Life (Setting 2) | 6.5 hrs (16-cell) | 4.5 hrs (extended) |
Noise Level | 38 dB | 43 dB |
FAA Approved | Yes | Yes |
Price (new) | $2,995 | $2,495 |
Warranty | 3 years | 2 years |
Winner for Travel: Inogen G5
- Lighter weight
- Quieter operation
- Longer battery life
- Better oxygen output
Winner for Budget: SimplyGo Mini
- $500 less expensive
- Still FAA-approved
- Good for moderate users
Mid-Weight POCs
Inogen One G3 vs. Philips SimplyGo
Feature | Inogen One G3 | Philips SimplyGo |
---|---|---|
Weight | 4.8 lbs | 10 lbs |
Flow Modes | Pulse only | Pulse + Continuous |
Flow Settings | 1-5 (pulse) | 1-5 (pulse), 0.5-2 LPM (continuous) |
Battery Life | 4.5 hrs (16-cell) | 3.5 hrs (pulse, extended battery) |
Carry Style | Shoulder bag | Wheeled cart or shoulder |
FAA Approved | Yes | Yes |
Price (new) | $2,295 | $2,795 |
Sleep Capable | No (pulse only) | Yes (continuous flow) |
Winner for Air Travel: Inogen G3
- Much lighter (critical for flights)
- Easier to carry through airports
- Longer battery life
Winner for 24/7 Use: Philips SimplyGo
- Continuous flow for sleep
- Versatile for day and night
- Better for users requiring constant oxygen
Key Differences Explained
1. Weight and Portability
Inogen Advantage:
- All Inogen models under 5 lbs
- Easy to carry with one shoulder strap
- Fits in small carry-on bags
- Won't strain shoulders during long airport walks
Philips Challenge:
- SimplyGo: 10 lbs (requires wheeled cart or heavy-duty shoulder strap)
- Mini: 5 lbs (comparable to Inogen)
- Heavier models difficult for frail users
Travel Impact:
- Long-haul flights: Weight matters significantly
- Multiple connections: Lighter is better
- Mobility issues: Choose lightest option
- Companion assistance: Heavier models manageable
Real User Experience:
"I switched from SimplyGo to Inogen G5. The 5-pound weight difference is HUGE during international travel. I can now navigate airports independently." - Margaret, 67, COPD patient
2. Oxygen Delivery: Pulse vs. Continuous Flow
Pulse Flow (Inogen Specialty):
- Delivers oxygen only when you inhale
- More battery efficient
- Sufficient for most users during waking hours
- Limitation: Not suitable for sleep (most people)
Continuous Flow (Philips SimplyGo):
- Constant oxygen stream regardless of breathing
- Required for sleep by many users
- Works with CPAP/BiPAP machines
- Drawback: Drains batteries faster
Which Do You Need?
Pulse Flow Sufficient If:
- Your doctor approves pulse-only for travel
- You use stationary concentrator at home for sleep
- Travel is daytime only (no sleeping on planes)
- Your oxygen needs are stable
Continuous Flow Required If:
- Doctor specifies continuous flow
- You sleep on long flights
- You use oxygen 24/7
- Your breathing pattern inconsistent (shallow breaths)
Important: Consult your doctor. Most travelers can use pulse-flow POCs during travel and continuous-flow stationary units at hotels.
3. Battery Life and Flight Duration
Battery Life Comparison (Setting 2, most common):
Model | Single Battery | Extended Battery | Real-World Travel |
---|---|---|---|
Inogen G5 | 3.5 hrs | 6.5 hrs | 13 hrs (2 batteries) |
Inogen G4 | 2.5 hrs | 5 hrs | 10 hrs (2 batteries) |
Inogen G3 | 2.5 hrs | 4.5 hrs | 9 hrs (2 batteries) |
SimplyGo Mini | 3 hrs | 4.5 hrs | 9 hrs (2 batteries) |
SimplyGo | 1.5 hrs (pulse) | 3.5 hrs (pulse) | 7 hrs (2 batteries, pulse) |
Battery Strategy for Long Flights:
- Domestic US (3-6 hrs): 2 batteries sufficient
- Transcontinental (6-8 hrs): 3 batteries recommended
- Transatlantic (8-10 hrs): 3-4 batteries
- Transpacific (12-15 hrs): 4-5 batteries or plan charging during layover
Battery Cost Consideration:
- Inogen batteries: $300-400 each
- Philips batteries: $350-450 each
- Trip to Asia example: 4 Inogen G5 batteries = $1,200-1,600 investment
Pro Tip: Many airports have medical device charging stations. Charge during layovers to reduce battery quantity needed.
4. Noise Levels and Discretion
Noise Comparison:
- Inogen G5: 38 dB (whisper-quiet)
- Inogen G4: 40 dB (quiet)
- Inogen G3: 39 dB (quiet)
- SimplyGo Mini: 43 dB (moderate)
- SimplyGo: 45 dB (noticeable)
38 dB = Quiet library 43 dB = Refrigerator hum 45 dB = Normal conversation background
Why Noise Matters for Travel:
- Flights: Quieter devices less disruptive to fellow passengers
- Hotels: Won't disturb roommates/companions
- Restaurants: Discreet oxygen use
- Business meetings: Professional appearance
User Feedback:
"My Inogen G5 is so quiet that fellow passengers don't even notice it during flights. With my old Philips SimplyGo, people would ask questions." - Robert, 72, frequent traveler
5. Durability and Reliability
Inogen Reliability:
- ✅ Generally excellent reliability
- ✅ 3-year warranty (industry-leading)
- ✅ Fewer moving parts (pulse-only models simpler)
- ❌ Some users report alarm issues
Philips Reliability:
- ✅ Solid build quality
- ✅ Dual-flow technology proven
- ❌ 2-year warranty (shorter)
- ❌ Heavier models have more complex components
Warranty and Support:
- Inogen: 3-year standard warranty, 24/7 phone support, strong service network
- Philips: 2-year standard warranty, good phone support, Philips Respironics service centers
International Travel Consideration:
- Inogen: Global service network, easier to find replacement parts
- Philips: Fewer international service locations
6. Altitude Performance
High-Altitude Capability:
- Inogen G5: Up to 10,000 feet
- Inogen G4: Up to 10,000 feet
- Inogen G3: Up to 10,000 feet
- SimplyGo Mini: Up to 10,000 feet
- SimplyGo: Up to 10,000 feet
All models handle commercial aircraft cabin pressure (equivalent to 6,000-8,000 feet).
Mountain Travel:
- Denver (5,280 ft): All models fine
- Aspen (7,908 ft): All models work, increase setting
- Cusco, Peru (11,152 ft): Exceeds most POC limits, consult doctor
7. TSA and Airline Experience
Both Inogen and Philips are FAA-approved, but practical differences exist:
Inogen Advantages:
- TSA officers more familiar (very popular)
- Lighter weight = easier security screening
- Compact size fits under airline seats easily
- Gate agents rarely question
Philips SimplyGo Challenges:
- 10 lbs triggers more TSA questions
- Wheeled cart may be considered "personal item"
- Larger size may need overhead bin space
- Some gate agents unfamiliar with heavier POCs
Both Manufacturers Provide:
- FAA approval documentation
- TSA information cards
- Airline notification letters
Model-by-Model Recommendations
Best Overall for Travel: Inogen One G5
Why It Wins: ✅ Perfect balance of weight (4.7 lbs) and battery life ✅ Highest oxygen output in lightweight category ✅ Quietest operation ✅ 3-year warranty ✅ Excellent airline experience
Best For:
- Frequent flyers
- International travelers
- Users with moderate to high oxygen needs
- Solo travelers (easy to manage alone)
Price: $2,995 (new)
Best Budget Option: Philips SimplyGo Mini
Why It's Great Value: ✅ $500 less than comparable Inogen ✅ FAA-approved ✅ Adequate for most travel needs ✅ Lighter than full-size POCs
Best For:
- Occasional travelers
- Budget-conscious users
- Moderate oxygen needs (settings 1-3)
- Backup POC for frequent travelers
Price: $2,495 (new)
Best for 24/7 Oxygen: Philips SimplyGo
Why It's Necessary: ✅ Continuous flow for sleep ✅ Pulse flow for daytime ✅ Works with CPAP machines ✅ Versatile for all situations
Best For:
- Users requiring continuous flow
- Long-haul flights with sleeping
- Extended trips without stationary concentrator
- Users with complex oxygen needs
Price: $2,795 (new)
Trade-off: 10 lbs weight (use wheeled cart)
Best Ultra-Lightweight: Inogen One G4
Why It's Special: ✅ Lightest FAA-approved POC (2.8 lbs) ✅ Most discreet design ✅ Fits in small purse or bag ✅ Ideal for short trips
Best For:
- Users with low oxygen needs (settings 1-2)
- Short flights (under 6 hours)
- Elderly or frail users
- Maximum discretion needed
Limitation: Lower oxygen output and shorter battery life
Price: $2,495 (new)
Real User Experiences
International Traveler: Inogen G5
Sarah, 65, COPD, 20+ International Flights:
"I've taken my Inogen G5 to Europe, Asia, and South America. The 4.7-pound weight is manageable even through massive airports like Heathrow. Battery life gets me through 8-hour flights with one spare battery.
The best part? It's so quiet that I can use it in fancy restaurants without drawing attention. My previous POC was loud enough that people would stare.
One challenge: Battery costs add up. I have 4 batteries ($$1,400 invested), but for frequent international travel, it's worth every penny."
Grade: A+
Cruise Ship Traveler: Philips SimplyGo
Michael, 70, Pulmonary Fibrosis, 5 Cruises:
"I chose SimplyGo because I need continuous flow at night. On cruises, I use pulse flow during the day and continuous flow in my cabin at night with my CPAP.
The 10-pound weight is a real challenge at airports. I use a wheeled cart, but stairs are difficult. My wife helps me, which is manageable.
For cruise travel, it's perfect. I don't need to bring a separate sleep oxygen concentrator. The ship's electrical system works fine with the SimplyGo charger."
Grade: A for cruise travel, B- for air travel (weight)
Budget-Conscious Traveler: Philips SimplyGo Mini
Linda, 58, Moderate COPD, Occasional Flyer:
"I fly twice a year to visit grandchildren. SimplyGo Mini was $500 cheaper than the Inogen G5, which mattered on my fixed income.
It works fine for my needs. A bit louder than I'd like, and battery life could be better, but for 2-3 flights per year, it's adequate.
If I traveled monthly, I'd probably upgrade to Inogen G5. But for occasional use, SimplyGo Mini is solid value."
Grade: B+ for occasional travelers
Cost Comparison: Total Ownership
Purchase Price (New, 2025)
Model | Device | 2 Extra Batteries | Carry Bag | Total |
---|---|---|---|---|
Inogen G5 | $2,995 | $700 | Included | $3,695 |
Inogen G4 | $2,495 | $600 | Included | $3,095 |
Inogen G3 | $2,295 | $600 | Included | $2,895 |
SimplyGo Mini | $2,495 | $700 | Included | $3,195 |
SimplyGo | $2,795 | $700 | Included | $3,495 |
Used/Refurbished Market
Certified Refurbished (from manufacturers):
- Inogen G5: $2,195 (save $800)
- SimplyGo Mini: $1,795 (save $700)
- SimplyGo: $1,995 (save $800)
Private Sale (eBay, Craigslist):
- 30-50% off retail
- Risk: No warranty, unknown usage history
- Recommendation: Only buy from reputable dealers with warranty
Rental for Occasional Travel
Short-Term Rental (1-2 weeks):
- $200-300 per week for Inogen G5 or SimplyGo
- Includes batteries and carry bag
- Good option for 1-2 trips per year
When to Rent vs. Buy:
- Rent if: Travel 1-2 times per year
- Buy if: Travel 3+ times per year (payback in 12-18 months)
Insurance Coverage
Medicare and Private Insurance
Medicare Coverage:
- Covers POCs if prescribed by doctor
- Must use Medicare-approved supplier
- Typically covers 80% after Part B deductible
- Patient pays 20% copay
Private Insurance:
- Coverage varies by plan
- Most cover with prior authorization
- May have preferred manufacturers
Tips for Insurance Coverage:
- Get detailed prescription from doctor
- Use in-network DME supplier
- Submit prior authorization early (2-4 weeks before needed)
- Document medical necessity for travel POC
Which Should You Choose?
Choose Inogen G5 If:
✅ You travel frequently (3+ trips per year) ✅ Weight and portability are priorities ✅ You want longest battery life in lightweight category ✅ Quiet operation matters (social settings, business travel) ✅ You can afford premium price ✅ Pulse flow meets your oxygen needs
Choose Philips SimplyGo If:
✅ You require continuous flow (sleep, CPAP) ✅ You need 24/7 oxygen solution ✅ You have assistance with heavy lifting ✅ Versatility matters more than weight ✅ You want dual pulse/continuous capability ✅ Long-haul flights with sleeping
Choose Philips SimplyGo Mini If:
✅ Budget is primary concern ($500 savings matters) ✅ Occasional travel (1-3 times per year) ✅ Moderate oxygen needs (settings 1-3) ✅ You want FAA-approved at lower price point ✅ Noise level not critical
Choose Inogen G4 If:
✅ Ultra-lightweight is essential (elderly, frail) ✅ Low oxygen needs (settings 1-2) ✅ Maximum discretion important ✅ Short flights only (under 6 hours) ✅ You prioritize portability over battery life
Accessories Comparison
Carry Bags and Carts
Inogen:
- Custom-fit carry bags included
- Backpack options available ($149)
- Wheeled cart (G3 only, $249)
Philips:
- Shoulder bag included (Mini)
- Wheeled cart included (SimplyGo)
- Backpack available ($169)
Power Adapters
Both manufacturers include:
- AC power adapter (home/hotel)
- DC power adapter (car/RV)
- Airline-compatible adapters
International Travel:
- Both: 100-240V compatible (universal voltage)
- Need plug adapters for different countries (Type C, G, etc.)
External Batteries
Inogen:
- Multiple battery sizes
- 8-cell (smaller, lighter): 2-3 hours
- 16-cell (extended): 4-6 hours
- Hot-swappable (change without turning off device)
Philips:
- Standard and extended batteries
- SimplyGo: Heavy batteries (contribute to overall weight)
- SimplyGo Mini: Standard/extended options
Maintenance and Long-Term Costs
Routine Maintenance
Both Require:
- Weekly filter cleaning
- Annual filter replacement ($25-50)
- Routine inspections
Maintenance Costs (annual):
- Filters: $50
- Sieve bed replacement: $400-600 (every 2-3 years)
- Battery replacement: $300-400 per battery (every 1-2 years with heavy use)
Service and Repairs
Inogen:
- 3-year warranty covers repairs
- After warranty: $200-500 typical repair
- Loaner programs available during repairs
Philips:
- 2-year warranty
- Extended warranty available ($300-500)
- Service centers in major cities
Final Verdict
For Most Travelers: Inogen One G5
The Inogen G5 offers the best combination of portability, battery life, oxygen output, and reliability for air travel. Yes, it's more expensive, but for frequent travelers, the investment pays off in convenience and peace of mind.
For 24/7 Oxygen Users: Philips SimplyGo
If you need continuous flow—especially for sleep or CPAP use—SimplyGo is your only real option in this comparison. The weight trade-off is worth it for users requiring round-the-clock oxygen.
For Budget-Conscious Travelers: Philips SimplyGo Mini
If $500 savings matters and you travel occasionally, SimplyGo Mini delivers FAA-approved reliability at a lower price point. Not the best in class, but solid value for moderate users.
Bottom Line: Both manufacturers make excellent POCs. Your choice depends on your specific oxygen needs, travel frequency, budget, and physical ability to manage weight.
Still unsure which POC is right for your travel needs? Connect with the MedFly Safe community for real-world advice from Inogen and Philips users.