Proportion of individuals in a region using the Internet in the previous 12 month period. Data is based on surveys carried out by individual national statistical offices or extrapolated from information on Internet subscriptions.

Mobile Internet device penetration considers the number of mobile Internet devices in a region divided by the population. Our data for mobile Internet access devices includes 3G and 4G capable phones as well as mid-screen device connections, such as via tablets, but excludes 2.5G mobile Internet devices, meaning that it may slightly underestimate the penetration level.

Total annual data traffic originating from mobile Internet devices, 3G and 4G handsets and mid-screen devices.

Monthly data traffic carried by the average mobile Internet device.

The average selling price for smartphone handsets is calculated by region as the total spend on smartphones divided by the total number of units sold.

We have compared the growth in mobile broadband subscriptions to the growth of mobile cellular subscriptions per 100 inhabitants for the regions in which mobile can be considered the dominant method of Internet access. Y0 on the chart indicates the year in which the respective services launched in that region; for example in Central and Eastern Europe, mobile phones launched in 1996 while mobile broadband launched in 2007.

Percentage of the population covered by a mobile-cellular network refers to the percentage of inhabitants within range of a mobile-cellular signal, irrespective of whether or not they are subscribers or users.

The ITU data here focus on 3G coverage as an indicator for the coverage of mobile broadband services. This is a narrower definition of mobile Internet services than our definition, which includes 2.5G services such as GPRS and EDGE. Thus, these numbers understate the proportion of population who are covered by the mobile Internet.

We have calculated the proportion of the population covered by mobile-Internet-capable 3G services divided by the proportion of population covered by any mobile cellular services.

Beyond smartphones, we are also interested in the move from PCs (both desktop and laptop) to tablets because tablets have greater mobile capabilities, including access to the App stores, and potential for integrated SIMs.

The share of time spent engaging with digital media in the United States, both mobile and fixed.

Proportion of individuals in a region using the Internet in the previous 12 month period. Data is based on surveys carried out by individual national statistical offices or extrapolated from information on Internet subscriptions.

Proportion of individuals in a region using the Internet in the previous 12 month period. Data is based on surveys carried out by individual national statistical offices or extrapolated from information on Internet subscriptions.

Proportion of individuals in a region using the Internet in the previous 12 month period. Data is based on surveys carried out by individual national statistical offices or extrapolated from information on Internet subscriptions.

Proportion of individuals in a region using the Internet in the previous 12 month period. Data is based on surveys carried out by individual national statistical offices or extrapolated from information on Internet subscriptions.

Proportion of individuals in a region using the Internet in the previous 12 month period. Data is based on surveys carried out by individual national statistical offices or extrapolated from information on Internet subscriptions.

Proportion of individuals in a region using the Internet in the previous 12 month period. Data is based on surveys carried out by individual national statistical offices or extrapolated from information on Internet subscriptions.

Proportion of individuals in a region using the Internet in the previous 12 month period. Data is based on surveys carried out by individual national statistical offices or extrapolated from information on Internet subscriptions.

Proportion of individuals in a region using the Internet in the previous 12 month period. Data is based on surveys carried out by individual national statistical offices or extrapolated from information on Internet subscriptions.