Inogen One G5 is pretty much the SAME as Rove 6. If you get a lighter machine, try it out with your oximeter to be sure it keeps you saturated. If you get a machine that’s lighter but doesn’t keep you saturated (at or above 90%, preferably with a bit extra in case of a flare up or extra exertion), its not going to help keep you as healthy as one that will keep you properly saturated.

If it’s too heavy, get a small luggage cart and use that to wheel around your POC. I got a nice backpack that I wear on my chest to carry my Inogen One G5. In this manner, it doesn’t injury my shoulder (which happens when I have all the weight on just one shoulder). It’s actually not bad carried in a good backpack like the one I got from O2Totes. (Listed on Amazon and their own site o2totes.com.) So many people want the lightest possible POC and then are surprised that it doesn’t adequately meet their needs and keep them properly saturated at or above 90% all the time. The G5 provides much more O2 than the G4; the heavier weight is needed for the compressor and bigger sieve beds.