# Introduction to S60 Web Runtime environment

Mobile devices that run S60 3rd Edition, Feature Pack 2 or S60 5th Edition include the Web Runtime (WRT) environment, which allows widgets to run on a mobile device. Widgets are lightweight applications that are based on standard Web technologies and are typically used to access information on the Web.

For information about Web Runtime versions and mobile device support for Web Runtime, see section Web Runtime versions and device support.

The Web Runtime environment provides widgets with a variety of features and allows them to access the Internet without the Web Browser for S60 being launched. For a list of standards supported by WRT, see section Web Runtime standards. For a list of features supported by WRT, see section Web Runtime features.

Note that in addition to testing your widget on a compatible mobile device, you can also test it using the emulator included in the S60 Platform SDK for Symbian OS, for C++ package. For more information on the S60 C++ SDK, see Before you start.