Obviously, there is nothing wrong with carrying a camera and a cellphone that is a bad camera. Here's an article that attempts a reasonable comparison of two of the phones with good cameras to a dslr although it doesn't describe all of their features of the phone or camera.
http://www.phonearena.com/news/iPhone-6-Plus-vs-Galaxy-Note-4-vs-DSLR-camera-comparison-strengths-and-weaknesses-of-phone-cameras-vs-DSLRs_id66349Note the phones in the article aren't as good as the latest models or even the best phones with cameras, but you'll get the main comparison points.