Tweak Your Display
There are a number of ways that you can tweak your iPhone’s display to your liking, and we suggest taking advantage of them. The first thing you should do is head to Settings > Display & Brightness and turn the brightness down. Your iPhone’s battery — and your eyes — will thank you.
This menu also holds a number of other display-related settings. True Tone may be able to offer a more pleasant viewing experience, so try it out and see what you think. It’s also a good idea to switch on Night Shift and tailor the Auto-Lock setting to a realistic time interval.