As for the Subject line contention that cell phone cameras are taking over...
I never previously tried to make a comparison, but I got curious about the quality of lens to be seen typically in a smartphone. My 7DII has 20Mpixels, and my Motorola Droid BallisticNylon has 21MPixel, so not a widely disparate comparison to make! I taped a 20 dollar bill on the refrigerator, and photographed it with both cameras, trying to have the money fill approximately the same size vertical in both shots. I deliberately made no attempt to fill the frame with the money, but instead captured the money at a relatively small size so that the fine engraving detail could be used to assess the detail resolution provided by each lens.
Here is one of the full frames so that you can see what portion of the vertical was filled.
Then I brought both shots into Paintshop Pro and displayed them side by side so that I could do a screen grab for posting...
on the left is the 7DII with Canon 17-55mm zoom lens at ISO 400 1/30 f/3.5, on the right is the smartphone photo at ISO 100, 1/40 f/2. On my monitor, the crops are displayed at about 10X the magnification of the whole frame detail, and the whole frame is displayed at about a 6X enlargement of the sensor image.
For detail comparison, look at the detail engraved below the second 'R' in the word 'Reserve' , or look at the engraved detail below the 'N' in 'Note',.
While the function of a camera is well supplanted by a smartphone camera, one can see that there is a considerable difference in the detail quality presented, even when pixel count is similar! While a smartphone shot might work OK for an 8x12 print, it isn't going to be able to stand up as well to examination of even a relatively modest 16x24" print. So unless the Leica lens on an Apple offers vastly superior performance over what is found on my Motorola phone, I wouldn't give up mirrorless or dSLR because I have a smartphone, even an Apple one.