"We all know how iconic BlackBerry has been and we are eager to prove to the world that the excitement is something they have in the future," he said.
"It's for successful people who are concerned with security but also for those who dare to be different."
The KEYone had been designed for business people and "professional consumers," according to BlackBerry Mobile senior product manager Logan Bell, who said its physical keyboard would set it apart from other phones.
That "smart keyboard" had been "completely reimagined," he said, so it could also act as a touchpad to move a cursor around the screen or to create app shortcuts.
"You will not see anything like the KEYone," Mr Bell said.
A spokeswoman said the device would launch in Australia for $799 as early as May this year.
The new BlackBerry device will face serious competition as Mobile World Congress kicks off in Barcelona, however, with established smartphone sellers including Sony, Huawei, and LG due to launch handsets at the event.
Jennifer Dudley-Nicholson travelled to Barcelona as a guest of Sony.