Just came back from a vacation with some friends. Two had the S4. By the time the week had passed they both wished they had purchased the HTC One. First you really cant see the S4 screen outdoors. When we were taking pictures we could see the photos in the One's gallery while we couldn't on the S4 outdoors. Then we had a dinner at a place at night that was lit only by candles. I got some nice shots while the S4 could not get any shots without using a flash. So with the One you can get the low light shot without the rudeness of using a flash in a public place. Both S4 users were very impressed. The S4 speakers seem louder but all agreed the One's speakers were much better sounding. And i noticed both S4 users did not use the air or pause features. When i asked why they both said they are not always reliable. In fairness one friend got his S4 before the One was released and the other was on Verizon but both said if they had to do it over they would have bought the One. HTC really made a great phone too bad they don't know how to promote it.