Swaziland is 21 times larger than Sanshui District.
Area: 17,364 km2 World Factbook
Population: 1,419,623 (July 2014) World Factbook
Swaziland, officially the Kingdom of Swaziland and sometimes called kaNgwane or Eswatini, is a sovereign state in Southern Africa surrounded – with the exception of Mozambique to its east – by South Africa. Wikipedia
Area: 836 km2 calculated
Sanshui District, formerly Sanshui City, is a district with about 386,000 inhabitants in Foshan, Guangdong province, People's Republic of China. Wikipedia