I currently have a Samsung Galaxy S3, which (I just measured) has roughly a 5" screen. When I first got it, I thought it was going to be very unwieldy and unfriendly to use, I was not looking forward to having a phone so big. Now that I've had the phone for 2 years, I would never go back to a smaller phone, I love the size and having that much room on the screen is fantastic for me. I'm looking at getting a Nexus 6 as my next phone if it's announced this fall.