DxO has extensively analyzed the image and video quality of over 9,000 cameras, lenses and mobile phones. These analyses are used by top camera manufacturersand media. DxOMark provides free public access to these results to help guide your camera and lens decisions

With an overall DxOMark Mobile score of 89, pixel, the latest Google smartphone, is the highest-rated smartphone camera we have ever tested. Its image quality scores are impressive across the board, but it is particularly strong in providing a very high level of detail from its 12.3MP camera

https://www.dxomark.com/Mobiles/Pixel-smartphone-camera-review-At-the-top

Iphone 7 review.

https://www.dxomark.com/Mobiles/Apple-iPhone-7-camera-review-better-than-ever