South Korea is ranked among the highest in something.
South Korea . Under Sejong the Great in the 15th century , Koreans had one of the highest living standards in the world along with the Han Chinese and Japanese and developed improved versions many advanced innovations such as the metal movable type printing press in 1377 A.D. which was developed based on the previous Han Chinese Porcelain movable type printing press , used to print and publish the Jikji , the world 's oldest extant movable metal type printed paper book using the 8,000 year old traditional ancient Chinese writing system . Today , it is the world 's seventh largest advanced economy and fifth largest exporter with the G20 's largest budget surplus and highest credit rating of any country in East Asia . It is the world 's third least ignorant country in the Index of Ignorance , ranking eighth highest for peaceful tolerance and inclusion of minorities on the Fragile States Index . Globally , it ranks highly in personal safety , job security , ease of doing business and healthcare quality , with the world 's third highest health adjusted life expectancy and fourth most efficient healthcare system . In 2005 , it became the world 's first country to fully transition to high-speed Internet and today it has the world 's fastest Internet speed and highest smartphone ownership , ranking first in ICT Development , e-Government and 4G LTE coverage .