Using some smartphones is like using a portable computer as they provide a second screen for media multitasking and also allow watching television. It is believed that by March 2011 million and millions of mobile phone users made use of location-based services. There are also applications that will allow you to prevent unwanted calls. Ever since the service for preventing unwanted calls was introduced it has managed to become very popular as many people are seeking the service. The reason is that some people have the habit of harassing other using mobile phones, there are people you wish not to speak to or there is a telemarketer who has been calling you.
Services such as Gowalla and Foursquare have been popularly used as of May 12, 2011, ComCore report indicated. This showed that one in every five smartphones the Gowalla and Foursquare services. There are several differences that can be found on different smartphones. One of the most notable is the screen size and resolution as they may vary from 3 inches to more than 5 inches while others vary from 6 inches to 8 inches.
Although people argue that the more the screen is large the more negative it becomes when it comes to usability. Samsung Galaxy Note 8.0, as well as Asus Fonepad and Huawei Ascend Mate, are some of the smartphones that are able to make calls and run on Mobile Oses. 240 x 320 (QVGA) pixels to 1080 X 1920 (Full HD) are the most common resolutions that are used on smartphones.