This is a relatively new Samsung Galaxy S4 which comes with a blue and black case, box and charger. It is in good working condition. As far as I know it should work with any NZ sim card. It has been factory reset.

There are a few small issues with it. Sometimes when the battery gets low and the phone is turned off or reset, it gets stuck in a reset loop and can only be turned off by going into factory settings or taking the battery out. I find that fully charging the battery fixes this problem, though there is probably a more permanent fix that I just haven't found myself.

I have had a bit of hit and miss with the GPS as well - again probably my lack of technical knowledge and this is probably also easily fixed.