I use most the paperwhite 2nd generation (212ppi resolution) as this had good availability and price. but the devices are quite hard to keep apart the mobilere

I use most the paperwhite 2nd generation (212ppi resolution) as this had good availability and price. but the devices are quite hard to keep apart the mobileread forum ist full of good information e.g.: https://www.mobileread.com/forums/showthread.php?t=267541 https://www.mobileread.com/forums/showthread.php?t=267541