If I say that "world cannot move forward without these smart gadgets" I may not be wrong. In fact, they have become so much revolutionizing that they are no longer the simply said "phone" (duh!) but smarter, newer, modified versions to assist you in every possible way.
10. HTC EVO 4G
A production by HTC Coporation which was released on 4th June, 2010. This 170g smartpone has a large 4.3-inches (480-by-800) TFT LCD capacitive touch screen display with a pixel density of 216 pixels per inch. Initially many customers complained few defects and not enough battery life but later solutions were soon released.
9. SAMSUNG INFUSE 4G
This falls under android smartphone first released on 15th May 2011. With a display of 4.5-inch 480 × 800 px WVGA super Super AMOLED Plus at 207 ppi, Samsung Infuse 4G weighs 129g with dimensions of 132 mm in length, 71 mm in breadth and 9 mm in thickness.