There are so many people on this site that say that iPhone 5 has not lag what so ever, but android still has slight lag. I am going to have to disagree big time. I was using my nexus 4 for about a month, and about 2 weeks ago I switched back to my iPhone 5. I have notice some things though. So first the nexus 4. Yes there is still slight lag in the N4 as you are doing a lot of multitasking, but not huge. The one time I saw it most was when I was typing a lot on Tapatalk. It never made the phone unusable, but it was there. So again nothing major, but something to note. Now to the iPhone 5. Now saying there is no lag on this iphone is completely wrong. I have notice the last two days that when I use a website that is heavy in media that when trying to navigate to another site it lags just a bit. The one problem that really bothers me is SMS. Today I was doing something else, and someone sent me a message. I opened the messaging app and and sent the single work ok. The word ok stayed in the text block, but at the top the bar was filling up to send. It completed sending and the word still was stuck in the text block. It did this several times after that. I do not favor iOS or android more. I just don't understand people that say iOS has no lag. It does people just tend to ignore it. I was never doing anything crazy on my iPhone. Just normal stuff. My iPhone is not jailbroken, so that has nothing to do with it. Just thought I was share, and see what other thought.