Resmed S9 Elite vs S9 Elite II

Where can I find an easy comparison between these two? Sometimes online site may provide feature comparisons...

At cpap.com, the Elite II is listed at a lower price. Is this a newer machine (based on the II designation)? Why is it cheaper? A bit non intuitive. It seems Elite II uses the older style data cards, and Elite uses the sd card. Is this correct? Also the Elite seems to be much lighter...

I don't think there is an S9 Elite II. Check this:


viewtopic/t49817/S8-Elite-II-or-S9-Elite.html

There is no S9 Elite II....there is a S8 Elite II...

The S9 is the newest technology machine which replaced the S8 machines roughly 2 years ago or so.

On the specifications page you can put check marks in each model to see how they compare. S8 vs S9
http://www.resmed.com/us/products/s9_se ... nc=dealers

Thank you for the two above replies; both of you are most likely right. I might have been a bit carelss last time when I looked up S9 elite at cpap.com. They showed a few machines on the search results. The one I thought was s9 (since I searched for that) now appears to be s8 elite II. This solves the puzzle; since s9 series appears better in almost all the features

The S8's mostly look like a lumpy white and blue medical device;
while the S9's resemble a stylish radio or cd player.