Across the entire tournament, they didn't concede a single point.
They're also the first host team to win a women's Sevens event on home soil.
For the New Zealanders, it's a major wake-up call heading into their Commonwealth Games tilt on the Gold Coast in April.
They were outgunned from the off, when Parry capitalised on a turnover to break the deadlock within a minute and Caslick followed suit.
Green then sprinted clear for Australia's third try to start the second half, finishing an Emilee Cherry break, before Pelite and Sykes killed off the match.
Sykes bagged three conversions from five.
It's also Australia's second consecutive World Sevens Series title win, having lifted the season-opening trophy in Dubai in December.
The Black Ferns Sevens finished fifth in that event.
- NZN
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