Vietnam is approximately 331,210 sq km, while Seychelles is approximately 455 sq km, making Seychelles 0.14% the size of Vietnam. Meanwhile, the population of Vietnam is ~98.7 million people (98.6 million fewer people live in Seychelles).
This to-scale map shows a size comparison of Vietnam compared to Seychelles. For more details, see an in-depth quality of life comparison of Seychelles vs. Vietnam using our country comparison tool.