Apple reminds iPhone X owners they’re using an OLED display

The company explains that the “slight shifts in color and hue” when viewing the screen off-angle (read: not straight on) are perfectly normal. It also says OLEDs exhibit slight visual changes with long-term use, such as showing remnants of a high-contrast image displayed on the screen for extended periods of time even when it’s already showing another image. Those two are also the most common