Jillaroos captain Isabelle Kelly expects New Zealand to examine Australia closely after Fiji pushed the hosts in a 30-14 World Cup semi-final.
"It's preparing for everything and we've done that well, changing the plan and against the Kiwis we might play a different style as well," Kelly said.
"They've watched all the games and there's always little things every team can find."
Australia are favourites for Sunday's Brisbane final, having won 12 of the teams' past 14 meetings over 11 years.
New Zealand won all but three of their 18 contests in the preceding 20 years, giving the Ferns a 17-15 overall lead.
Kiwi captain Georgia Hale said Tuesday that her side believed the Jillaroos could be beaten.
"The pack we have, the flair and speed we have ... absolutely they are so beatable."
"We've beaten them before, and I remember that feeling and it's one we want to grasp on Sunday."