1) a large screen
2.) a micro SD card slot
3.) no region lock
In order for the Xperia Z Ultra ever met my basic requirements, and I was not disappointed!
Screen size, resolution and performance are excellent, as is the battery life, for a normal working day with average use, I have used up only 50% of battery, which is actually quite ok, my colleague with iPhone 5 must be at least 1 times the same user already charge a day while I do not have ^^
OS, apps and other all run absolutely smoothly, although the camera has no flash, but I do not really care, because I anyway rarely what Scan, and if it is then only if eh day and enough light ^^
For the people who think that the Ultra is much too big ... nope it's not, it's perfect, I can keep it wonderfully with one hand, and war is also wonderful in your pocket, I've never been with a cell phone so satisfied !! ^^