How to use ‘Lens Cleaning Hints’ with an iPhone 15 or later

If you are using an iPhone 15 or a newer model, your device is equipped with “Lens Cleaning Hints”. 

This native iOS feature detects dirt, fingerprints, or smudges on your lenses and prompts you with a “Clean the camera lens” warning at the top of your camera screen. To enable the feature: 

1. Open your Settings app.
2. Scroll down and tap Camera.
3. Scroll to the bottom and toggle on Lens Cleaning Hints.