I was the same: I had gone all digital shortly after upgrading to a smartphone several years ago, but I found I missed paper, and typing ideas into an app didn't spark the same creative thinking as writing by hand, so I went back to a memo book.

I'm using an iPhone 6 as my main phone (I kind of want to upgrade to an X, but I also kind of don't see any real reason to do so beyond that lust for the latest thing), but I also often carry around my iPhone 5 for photos. The camera may not be as good as on the newer phone, but I just like it more. I often give it to my son when he's on the back of my bicycle to take phones with or when I am using one of my SLRs, so it doubles as his camera.

Thanks for the compliments :)