It really depends on what sort of pictures you are taking. If you are taking photos in low light, a better sensor (whether it's a full-frame 35mm or an APS-C

It really depends on what sort of pictures you are taking. If you are taking photos in low light, a better sensor (whether it's a full-frame 35mm or an APS-C sensor) will allow you take photos without using a flash in certain environments where using the cell phone would be hopeless. There are also certain things you can do playing with depth of field that aren't possible with smaller sensors such as found on a cell phone. But it's also true that for most people, and for most shots, it doesn't matter. What does matter is that you have a something to take a photo with you; using a cell phone is just another variant of the old saying, "f/8 and be there".