If you live or work in rural or regional New Zealand and require a rugged phone that is compatible with the 4G extended networks of these New Zealand telco's then look for phones on this site that display the "4G Extended" logo under the main picture of each phone.
Kiwi's living and working in rural and regional areas benefit from superior call quality and reception when they have a handset that is compatible with a 4G Extended network. You can click here to see them, listed from lowest price to highest price.
For a handset to work on the various 4G Extended networks it requires the following bands on FDD-LTE 4G. They are Band 28/28a/28b/ being the 700MHz frequency.