Although I am fascinated by the conclusion ("I don't think New Zealand did all that great") that sort of flies in the face of what they have experienced (reopening, no cases for 102 days, life pretty much back to normal except for this week's blip), the notion that comparing a small, isolated state in the USA to an entire country is somehow not an "apples to oranges" comparison, and that you have, as we have seen others do, manipulated metrics to somehow make others look bad and the USA (Hawaii?) look good, I'll say this: Bravo Hawaii.
Hawaii also instituted a strongly enforced 14-day quarantine for visitors, mandatory C19 testing that goes into effect on Sept. 1, the order to quarantine is enforced with up to a year in jail and a $5,000 fine for people who don't obey, arriving visitors have their temperature checked at the airport, hosts of visitors are liable for the behavior of their visitors, visitors have severe restrictions during their 14-day qurantine, etc. There is a partial quarantine for inter-island travel as well. Stay at home orders were issued in mid-March.
The metric of population density for Covid cases is interesting, and no doubt affects C19's spread, but really doesn't speak to any of the above factors -- which are all policy-related. If the argument is, "well, population density is the cause of the spread of C19" then, by implication, there is little point in making any policy to reduce infection other than, perhaps, "spread out." But the point I am making -- that goes over people's heads or is simply ignored because, apparently, "FREEDOM!" -- is that well-implemented policy -- in Hawaii, in New Zealand -- affects countries' or states' experiences with C19.
But I will also say -- well done New Zealand. C'mon. Seriously. "I don't think New Zealand did that great"? Arguing for the sake of argument much?
And I'll end with this: Hawaii has seen a huge spike in the number of infected people beginning around July 21, and peaking (so far?) yesterday with 231 confirmed cases. Now take your population density comparison for New Zealand (4 cases in the past week, no scratch that, 4 cases in the past 3.5 months) to Hawaii (231 cases yesterday) and tell me how much better Hawaii is doing.