Whether you go with a family portrait, graphic design, or photo from a fireman’s charity calendar, a custom wallpaper has always been the easiest way to put your stamp on a device and say, “This. This is mine.” Your iPhone is no exception.
You can add a wallpaper to both the home and lock screens—and it doesn’t have to be the same one. It could even be a dynamic wallpaper, Live Photo, GIF, or TikTok video.
To customize your iPhone wallpaper, go to Settings > Wallpaper > Choose a New Wallpaper. Select one of the built-in options or choose something from your Camera Roll and you’re good to go.
Not a word of a lie, my ringtone is LMFAO’s classic party hit, Sexy and I Know It. It’s much better than the default and when Redfoo’s opening bars start playing in public, I know it can only be for me. While you don’t have to go quite this far to customize your iPhone, you can still change the sounds it makes when people call or text you.
Go to Settings > Sounds & Haptics and either select Ringtone or Text Tone. Choose one of the iPhone’s default (and boring) options or visit the Tone Store to find something with a bit more personality.
The Control Center gives you quick access to some of your iPhone’s important settings, like the screen brightness, volume, and WiFi. It can also connect you to a limited number of other built-in functions like the alarm, camera, flashlight, Notes app, and accessibility shortcuts. The exact ones are up to you.
To customize what appears in the Control Center, go to Settings > Control Center. From there, tap the green plus sign to add any of the options to your Control Center and use the red minus sign to remove them. Rearrange your list by dragging the three lines on the right of each one.
Source : https://www.popsci.com/customize-your-iphone/