The Z Ultra has a 6.4-inch screen that's more like a smaller tablet than a phablet, but I'll let it slide. Besides a few 7-inch phablets, it's one of the largest smartphones on the market. No amount of ergonomic enhancements will make a phone of that size comfortable to hold on a regular basis. Making calls on it makes you look a little stupid, too. Still, all of that screen real estate is quite nice.