These smart phone clone makers are getting better and better. Here is one Galaxy S4 smartphone that is almost like the real thing. This clone phone has a 720p HD display and although the real Galaxy S4 has a 1080p display, the difference is hard to notice. http://www.orientdeal.com/orientphone-s4-s9500-android-4.2-mtk6589-quad-core-s4-s9500-smart-phone-with-5.0-inch-qhd-screen-12.6.0mp-back-camera-5.0mp-front-camera-3g-gps.html
Here is another one that is almost exactly like the real thing. This one even has a 13MP Camera just like the real S4.
You can order it from here http://www.anybuying.com/no-1-s6-5-inch-1080p-screen-quad-core-13mp-android-phone-white.html