Solomon Is. is 2.4 times larger than Vanuatu.
Area: 28,896 km2 World Factbook
Population: 609,883 (July 2014) World Factbook
Solomon Islands is a sovereign country consisting of a large number of islands in Oceania lying to the east of Papua New Guinea and northwest of Vanuatu and covering a land area of 28,400 square kilometres. The country's capital, Honiara, is located on the island of Guadalcanal. Wikipedia
Area: 12,189 km2 World Factbook
Population: 266,937 (July 2014) World Factbook
Vanuatu, officially the Republic of Vanuatu, is an Oceanian island nation located in the South Pacific Ocean. Wikipedia