If you feel like your fingers are too fat to navigate the iPhone 6, you will love the 6 Plus. It's sort of between an iPhone and an iPad Mini. And the camera was quite good. It's the first mobile phone I've owned that I felt I could carry and leave my other electronic toys (cameras and tablets) at home. Oh! And did I mention that it's a great phone! With all of the emphasis on the multiple tasks the smartphones can perform, the basic job is to make and receive calls, and it's flawless in this regard.
My only reservation is that I had to be mindful about keeping the battery charged, and as long as I used the charger that came with the phone, it a quick process.