Black Caps Devon Conway and Kane Williamson combined for a match-winning second wicket partnership. Photo: PHOTOSPORT
The Black Caps are off the mark in the tri-series in Christchurch after an eight-wicket win over Bangladesh on Sunday but are still dropping catches.
Winning the toss New Zealand opted to bowl first and spinners Ish Sodhi and Michael Bracewell helped to keep the visitors to 137-8 from 20 overs.
Bangladesh went from 53-1 to 78-5 in the space of six overs.
Sodhi took 2-31 to become the third New Zealander - behind Tim Southee and Sophie Devine - to 100 T20I wickets.
Bracewell took 2-14 and pace bowler Trent Boult also picked up 2-25 in the win.
Opener Najmul Hossain Shanto was the top scorer for Bangladesh with 33 off 29 balls in his first game two months.
The Black Caps were not at their best in the field, dropping several clear cut chances.
In reply, New Zealand lost opening batter Finn Allen in the fourth over for 16 but Devon Conway and Kane Williamson pushed on for a match-winning 85-run stand for the second wicket.
Conway was undefeated on 70 off 51 balls when New Zealand strolled home in the 18th over, with Glenn Phillips sealing the result with consecutive sixes.