US scientists have amassed "planetary-scale" data from people's smartphones to see how active we really are.
The Stanford University analysis of 68 million days' worth of minute-by-minute data showed the average number of daily steps was 4,961.
Hong Kong was top averaging 6,880 a day, while Indonesia was bottom of the rankings with just 3,513.
But the findings also uncovered intriguing details that could help tackle obesity.
Most smartphones have a built-in accelerometer that can record steps and the researchers used anonymous data from more than 700,000 people who used the Argus activity monitoring app.
Scott Delp, a professor of bioengineering and one of the researchers, said: "The study is 1,000 times larger than any previous study on human movement.
"There have been wonderful health surveys done, but our new study provides data from more countries, many more subjects, and tracks people's activity on an ongoing basis.
"This opens the door to new ways of doing science at a much larger scale than we have been able to do before."
