Samsung’s mythical premium Galaxy S5 handset, often referred to as Galaxy S5 Prime, is not yet ready to be unveiled. But images showing the device as well as more rumblings about its potential name have hit the web. Well-known leaker @evleaks has published two images of a Galaxy F handset, which could very well be the metal Galaxy S5 many buyers have been waiting for. One of the images, which appears to be a press render, clearly shows the device’s metal back cover complete with Galaxy S5-like rear camera and heart rate sensor. The camera and sensor placement on the front side are not consistent with the current Galaxy S5’s design, so this is clearly a different phone. The second image is a bit