HHZ Respiratory Review

Inogen One G5 vs Rove 6: what changed (2026)

3 min read By HHZ Editorial Next review

Inogen says the Rove 6 replaces the One G5. On paper they deliver the same oxygen (six pulse settings, 210–1,260 mL/min at 90%), weigh about the same (4.77 vs 4.8 lb) and are almost the same size. The main documented difference is service life: 5 years for the G5 vs 8 years for the Rove 6. The Rove 6 cost $2,795 new from Inogen on 13 October 2026. A used G5 can make sense only with a warranty and service history. This comparison is based on documents, not hands-on testing.

How we compared these: HHZ didn’t test either concentrator hands-on. This comparison is written from Inogen’s user manuals and product pages, linked below. We don’t report comfort, noise or reliability impressions we haven’t measured.

Side by side

SpecInogen One G5Inogen Rove 6
StatusReplaced by Rove 6 (Inogen)Current
New price (13 Oct 2026)Not sold new on inogen.com$2,795
SettingsPulse 1–6Pulse 1–6
Oxygen per minute210–1,260 mL210–1,260 mL
Concentration90% (−3%/+6%)90% (+6%/−3%)
Weight (standard/single battery)4.77 lb4.8 lb
Size7.19 x 3.26 x 8.15 in (8-cell)7.18 x 3.27 x 8.14 in
Sound at setting 238 dBA (Rev C manual)39 dBA (manual)
Max outlet pressureUnder 28.9 psiUnder 28.9 psi
Battery, single/standardUp to 6.5 h (Rev C)Up to 6:15 at setting 1
Battery, double/extendedUp to 13 h (Rev C)Up to 12:45 at setting 1
RechargeUp to 3 h single, 6 h double (Rev C)Up to 3 h standard, 4 h extended
Altitude0–10,000 ft0–10,000 ft
Expected life5 years8 years
Sieve beds / batteries1 year / 500 cycles1 year / 500 cycles

Sources: G5 manual Rev C, G5 manual Rev B, Rove 6 manual.

The G5 manual conflict

Two revisions of the G5 user manual, both on inogen.com, give different specifications:

SpecG5 manual Rev BG5 manual Rev C
Single batteryUp to 4.5 hUp to 6.5 h
Double batteryUp to 9 hUp to 13 h
Single battery rechargeUp to 4 hUp to 3 h
Sound at setting 239 dBA38 dBA

Inogen doesn’t explain the change. If you’re buying a used G5, the battery that comes with it and its age matter more than either figure; batteries are rated for 500 full cycles.

Buying a used G5: checklist

  • Ask for the run hours and when the sieve columns were last changed (rated 1 year).
  • Ask how many cycles the battery has, or budget for a new one.
  • Get a written warranty from the seller.
  • Confirm with your prescriber that pulse dose works for you, including during sleep.
  • Check that the provider can service it, since Inogen now sells the Rove 6.

See used and refurbished concentrators.

Verdict

The documents show the Rove 6 is essentially a G5 with a longer rated life (8 vs 5 years). Buy new if you can; it’s the safer long-term purchase. A used G5 is reasonable only at a clear discount, with a fresh battery, recent columns and a seller warranty.

Related: Inogen Rove 6 review, OxyGo NEXT review, POC warranties compared.

Frequently asked questions

Is the Inogen One G5 discontinued?
Inogen's consumer product page for the Rove 6 says 'Rove 6 replaces the Inogen One G5', and the old consumer G5 product page now returns a 'not found' error. Inogen's provider site still lists a G5 System. Expect to find the G5 mainly used, refurbished or through equipment providers.
Do the G5 and Rove 6 deliver the same oxygen?
Yes, on paper. Both manuals list six pulse settings delivering 210 to 1,260 mL per minute (±15%), at 90% (−3%/+6%).
How long does the G5 battery last?
It depends on which manual you read. Revision C of the G5 user manual says up to 6.5 hours with a single battery and 13 hours with a double battery. Revision B says up to 4.5 and 9 hours. Inogen doesn't explain the difference.
Which lasts longer, the G5 or Rove 6?
The G5 manual lists an expected life of 5 years. The Rove 6 manual lists 8 years. Both list 1 year for the sieve beds and 500 charge cycles for batteries.
Should I buy a used G5?
Only from a seller who can show service history and offers a warranty, and only if your prescriber confirms pulse dose suits you. Ask when the sieve columns were last changed. See our used concentrator guide.

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