i don't want to ruin your impression of your device but i used mine recently in a store next to a new device and it has noticeable ghosting(characters stay on s

i don't want to ruin your impression of your device but i used mine recently in a store next to a new device and it has noticeable ghosting(characters stay on screen)+ backlight is weaker + interface is waaaay slow Think it needs a new battery but apparently you can't get that done