Apple isn't having a good time with its new iPhone X smartphones, with a bunch of customers on Apple's forums and Reddit complaining that their new iPhone X has an annoying green line that runs down the side of the screen.
The green line on the display looks like an entire row of bright pixels, like you would get on a faulty display and in this case an OLED display manufactured and supplied by Samsung. You can simply swap over your new iPhone X with a new one at any Apple Store, but it's still a huge hassle after you might have set it all up and now have to wipe it and do it all over again.
On top of that, we have 'cold weather responsiveness' issues with the iPhone X, and FaceID not working with some users' faces when they're wearing glasses.