Hello all, been a while since posting. I recently upgraded my phone to a Galaxy S5 on Verizon. Since I brought the phone home on Sunday I have totally loved it. Seems to be amazingly fast and I'm very impressed with the camera. However, I have noticed that the phone heats up pretty quickly. It seems like after surfing the web for a few minutes or scrolling thru Facebook the back of the phone gets pretty darn warm. Also I get this intermittent lag. I'll go to unlock the phone and it will literally take up to 5 seconds before it opens. I notice this on the keyboard as well. I'll start typing and the letters will pop up like I have hit the correct key, but they will stay popped up, almost like its stuck on a letter. I took the phone to Verizon and the salesman looked it over and said he couldn't find a problem. He asked me to do a factory reset and give it a few days. I did the factory reset and all was perfect for about a day. Now, a day later, its starting again. The lagging is very intermittent. Am I missing something ? Could an app be causing this ? I have all location services and sync services turned off except Facebook and Facebook messenger. I'm leaning towards taking it back for a replacement while I'm within my 14 day return period.