Google has been collecting tons of data about smartphone usage around the world.  Here are some of the most surprising and interesting facts: Android is most popular in Japan, with 55% of respondents  using it, compared with 39% for iOS.Android is also number one in a few other countries, including New Zealand (41%), the US(40%), and China (38%). iOS is farthest ahead in Switzerland, with 52% usage vs 23% for Android.Other countries where iOS is far ahead include Australia (49% vs 25% Android), Canada (45% vs 23% Android and 23% Blackberry),  and France (43% vs 25% Android). In Egypt, Windows Mobile is far more popular than iOS.13% of survey respondents use the Microsoft smartphone platform, behind Symbian (19%) and Android (14%). iOS is very far down at 4%. Mobile social networking is biggest in Mexico and Argentina, where 74% and 73% of users visit a social network daily.But mobilesocial is weak in Japan where 34% of users never visit a social network on their phone, and this figure rises to 41% in Brazil. Watching video is most popular in Saudi Arabia, with 59% of respondents doing it daily.Number two is Egypt, with 41%. Chinese users shop from their phones.59% of Chinese users do this, compared with only 41% in secondplace Egypt.Chinese users also love to write reviews.41% of them write a review of a local business after looking it up on their smartphone.Number two, Japan, is far behind, with only 24% of respondents doing this. . In which of the following countries is mobile social networking least popular?
Brazil. Japan. Mexico. Argentina.