New research from Strategy Analytics has revealed the gadget saw off competition from its fiercest rivals to take the top spot during the third quarter of this year.
Technology analysts found the mobile device’s popularity stems from its extensive distribution, generous operator deals and a large touch screen, which makes it easier to use.
Apple’s latest offering the iPhone 5 came in third place during the three-month period, accounting for 3.6 per cent of the market since its release in October.
Samsung shipped 18 million of the Galaxy S3 during the third quarter of 2012, capturing an 11 per cent share of all smartphones.
Commenting on the results, Neil Mawston – executive director at Strategy Analytics – said: “Samsung’s Galaxy S3 has proven wildly popular with consumers and operators across North America, Europe and Asia.”
Mr Mawston also noted the device’s run at the top of the best-seller list is likely to be short lived, as the iPhone 5 continues to grow in popularity.