New Zealand pay as you go 4g 3g sim cards. Avoid roaming charges in NZ on data - apps - internet - calls - texts. Free incoming calls while in New Zealand. You will know your mobile number before you travel to NZ. You can tell friends - family - co workers your number before you leave. If your going to be backpacking or on a working holiday in New Zealand you will need a NZ mobile number for applying for jobs and keeping in touch with people back home or traveling friends.
You can use the correct size sim card (mini - micro or nano) i sell on this website in any unlocked smart phone or tablet or any other device that takes mobile phone sim cards that is unlocked.