I don't think that's a valid comparison. All watches tell time, but how they tell time varies greatly. I own an automatic Panerai watch (http://cl.ly/4YkQ) and it looks completely different from watches that Urwerk (http://cl.ly/4XvZ) or Richard Mille (http://cl.ly/4XZR) make. Comparing how different those three watches look with the visual differences between, say, an iPhone 4 and a Nexus S and it's night and day. The Nexus S and iPhone 4 are about the same size, same thickness, same dimensions/proportions in width/height, about the same size screen, and the screen takes up about the same size % of the phone face.