A great accessibility feature on the iPhone allows you to use your phone as a magnifier to see tiny details. There is a bit of setup:

How to turn on Magnifier

  1. On your iPhone or iPad, go to Settings > Accessibility.
  2. Tap Magnifier, then turn it on. This adds Magnifier as an accessibility shortcut.

Quickly access Magnifier

To quickly open Magnifier:

  • On an iPhone X and later, or iPad without a Home button: Triple-click the Side button. Then drag the slider to adjust the magnification level. To close Magnifier, swipe up from the bottom of your screen.
  • On an iPhone 8 and earlier, and iPad models with a Home button, triple-click the Home button. Then drag the slider to adjust the magnification level. To close Magnifier, press the Home button.

You can also add Magnifier to Control Center:

  1. Go to Settings > Control Center, then tap Customize Controls.
  2. Tap the add button next to Magnifier.

Then from Control Center, tap the Magnifier button to use it.