Samoa put in a tough defensive effort but the agility and foot work of home team proved too strong at Mt Smart Stadium.
Karli Hansen scored the opening try off the back of a hopeful kick which bounced off the outside of the posts before the Ferns scored another through Honey Hireme.
The first half was always going to be challenging for Samoa, who were working against the wind, but they soon found momentum with a quick dummy from stand-off Ricshay Lemanu helping her make way through the defence, putting points on the board at 10-4.
