Hi everyone this is my first post but have been viewing for a long while. I would like to purchase a new 24 inch monitor to replace my old Dell monitor and there are four Dell models that I am looking at. The reason for Dell is mainly for the 360 degree rotation on the stand because I view the screen at about 45 degrees from horizontal, because of a spinal issue, as I view laying down. I use the screen mainly for browsing the internet and printing a few photos but would like a good monitor especially as my eyes are not as good as they were. The screens I have in mind are the U2414H, U2415, U2515 and U2412M, sorry I did not know how to link them to be able to just click on them. Price is not really a consideration I just would like to know what differences I may see between them as I am not really sure, apart from the physical size of the screens. Thank you for any advice.