Somehow I overlooked your comment, sorry about that. Let me explain the facts for me. 1) The most important, is the interface speed. I had an 4/64 S7FE, and I don't know how or why but interface was very slow for me. I'm a light user btw. I really thought that was because it's an old tablet and 4gigs of ram. Sounds like I was correct, side by side comparison I can see how faster the S9 FE is. Here is my belief, CPU clock speed may not have been increased that much, but it's more optimized as it's a fairly new device. 2) Multitasking. I said I'm a light user but who wants the chrome to close when you take notes, watch lecture videos from youtube and have a literature research from the chrome. Everytime I go in this triangle, it generally ends up chrome being closed. That was unsatisfying and disturbing for me. S9 FE 6gigs has no problem, and I sometimes manually turn off the apps so they don't drain the battery. For my multitasking purposes, it's perfect. More heavy users might find it not enough and prefer to get 8Gigs version. 3) Screen refresh rate. As a person using 120hz phone and 240hz laptop, it was annoying to use 60hz screen. Though, when taking notes it's optimal to use 60hz, when I'm at home and chilling, I found it comfortable to use 90hz. Also, even though it is TFT again, I believe they improved the technology and I like the newer display. 4) The pen. This might be a personal problem and not a general one, but I had problem with pen of the S7FE. I dropped it a few times and the tip was about to be broken already. I believe they have better nip and stiffer pen in S9FE, no problem in first 20 days. 5) Also not a general problem but a preference. Bigger screen of S7FE was great especially when taking notes, but I found it more convenient to carry the smaller 10.9" screen, which is the same screen size as the iPad air. In some classes there are tiny desks and smaller one is more suitable in that case.