I’m not a fan of calling devices that can do voice communications "phones" when they have larger than 4in screens. Yes, part of that is grounded in the fact that phones are still held to the side of the head (by instinct) and that the idea of speaking/conversation for that mode of communication tends to be a dominant behavior. However, I do get it when we see devices which have those screens which are 5-7in in size (diagonal) and people want to use/refer to them as phones. It feels ok to do so becaue that is the context that we know and best understand. However, unless some major usability gaps change, I don’t think that such a characterization is correct.