Does it works with iPhone XS?
No, this screen just matches iPhone X. Incorrect model would damage your iPhone
Is it easy to install?
Yes, but please check the some videos before installation, if you have no experience. If you could not find the direction video, please contact seller for it.
Can I still have face ID function after installation?
Yes, this screen replacement supporting face ID perfectly.
Does it come with front camera and other accessories that are on the normal screen?
No, the front camera is not connected to the screen. You need remove the earspeaker from old screen.
Does it come with a waterproofing seal?
Yes, it comes with waterproof adhesive, so you could keep the waterproof function.