Nokia Xpress Browser is the internet web browser pre-installed on Nokia Asha and newer Series 40 mobile phones. It is also available as an optional download for some older Series 40 mobile phones and some Nokia Lumia devices. Nokia Xpress Browser enables you to access internet web sites as well as web apps through a cloud-based service that uses advanced servers with high speed Internet connections to optimize web pages prior to sending them over the network to your mobile.