The proliferation of smart phones makes the need for optimize our sites to make them look good on such devices is getting bigger.
There are various tools that help us in this task, one of them is mobile phone emulator, which allows us to know how our site —or that of a client— is viewed on devices such as the iPhone 5, the Samsung GT i9100, the BlackBerry 8900 or the HTC Touch Diamond.
The operation of Mobile phone emulator is quite simple, just set the size of our monitor, choose the mobile that we wish to emulate and enter the address of our website; We can also configure other parameters, such as the orientation in which we want to emulate the terminal. All in a fairly fast and uncomplicated way.
On the negative side, some other popular device models are missing, but to get a general idea it is more than enough.
More information - Screenfly, tool to know how our site looks on smartphones
Great. I have also tried Ripple as an extension for Chrome.