CNET también está disponible en español.

Ir a español

Don't show this again

CNET editors pick the products and services we write about. When you buy through our links, we may get a commission.

Can you tell the difference between these photos?

We tested four phones -- the Samsung Galaxy S8 Plus, the iPhone 7, the Google Pixel XL and the Motorola Moto G5 Plus -- to see what a dirty lens did to photos.