Hello, I am almost going to buy an iPhone 6S+. However, as a Galaxy Note PRO 12.2 user, I know that I am going to miss the large screen size. The iPad Air 2 and IPP do not have cell phone functionality and I prefer to have one device that can act as a phone, a large screen for writing notes (not sure if I could write lots of notes on an iPhone 6S+ without too many zooming in and out) and large screen for surfing the net. What suggestion do you have?