Usage share of operating systems the similar correlation for the richest countries and that poorer countries choose Apple's iPhone in lesser numbers. Data from Google however suggests that people in poorer countries are more likely to buy apps on Android. Smartphone penetration vs. desktop use, differs substantially by country. While some countries like Russia still measure desktop use high, there at 77% (and smartphones at 19%) this ranges down to a bit under 5% in Mali where Android smartphones have just over 95% share. In most western countries, smartphone use is close to, but still under 50%. Section below has more info on regional trends
Smartphone U.S. and Japan, Nokia was seeing success with its smartphones based on Symbian, originally developed by Psion for their personal organisers, and it was the most popular smartphone OS in Europe during the middle to late 2000s. Initially, Nokia's Symbian smartphones were focused on business with the Eseries, similar to Windows Mobile and BlackBerry devices at the time. From 2006 onwards, Nokia started producing consumer-focused smartphones, popularized by the entertainment-focused Nseries. Until 2010, Symbian was the world's most widely used smartphone operating system. In the 2000s, it was common for smartphones to have a physical T9 numeric keypad or QWERTY