I just got my Nexus 5 and compared with my S4, I think I made a mistake getting it, the S 4 display seem to be more darker and crisp,black is a solid black on the N5 it like a washed gray, and when I did a speed test with OOKLA the S4 at home does about 11 mps on LTE, but so far all I can get on the Nexus is 3 mps at home on HSPA can not even get LTE, same carrier ATT, I then brought it to work again HSPA on the first floor and LTE on the 2nd floor, halve way thru the day had to run out to my car to get a cord to charge the phone battery, it was running low, never had to do that, then I like the LED notifaction like show it charging red, and charged green, blue message, but on the N5 white blinking that it, but you can get light flow app led notifaction and the light changes color, ask about blocking call and messages, N5 no. but you can get a app, I got a 32gb phone, because I use alot of space about 16gb on the S4 SD card, but if I have to keep download app just to get the features that I like on the S4 how much memory will I have left, and you can read other post the camera sucks, but they have a upgrade coming out to fixes it, so I set both phones next to each other at home not on WI FI, I turn it off, the S4 was faster opening apps, maybe I got a bad phone I don't know, but I removed my S4 off E-Bay before it sold, and returned the N5, maybe if I had a S2 are older phone I would be impress with it, but even selling the S4 the N5 would have probably been free, but not worth the hassel