Top-seeded Wozniacki needed only 67 minutes against the 24th-ranked Italian at the hard-court Koza World of Sport Complex. Wozniacki won 76 percent of points on her first serve - compared to just 43 percent for Vinci - and also saved all six break points against her.
''I served well and pushed her around the court,'' Wozniacki said.
The two players are 2-2 in head-to-heads with Vinci beating the Dane when she was the top-ranked player in 2011.
The 24-year-old Wozniacki, now ranked 15th, has won at least one WTA title every year since 2008.