New Zealand watch plans and roaming

2degrees Watch Sidekick

Eligible 2degrees Pay Monthly plan. Apple Watch Series 6 or newer with iPhone 11 or newer; Samsung Watch7 or newer with Samsung S10 or newer. Latest software required.

Overseas use: unavailable

Calls

No overseas cellular service. Wi-Fi calling is possible after enabling it on the phone and connecting to Wi-Fi.

Texts

No overseas cellular service.

Data

No overseas cellular service.

Carrier rules · Checked October 8, 2026

One NZ OneNumber - Apple

Apple Watch Series 4 or newer, GPS + Cellular, with watchOS 10.1 or later; iPhone XS or newer with iOS 17.1 or later. An eligible One NZ phone plan is required.

Overseas use: limited

Calls

Cellular calls cannot be made or received abroad. Wi-Fi calling is possible.

Texts

Send and receive texts if the primary phone is on and the watch is connected to a roaming cellular network or to the phone by Bluetooth.

Data

4G networks only. Not available in the USA.

Carrier rules · Checked October 8, 2026

One NZ OneNumber - Samsung

Samsung Galaxy Watch5 or newer with a Samsung phone running Android 10 or later. Check imported devices with One NZ; compatibility is not guaranteed.

Overseas use: limited

Calls

3G networks only. Not available in the USA.

Texts

Send and receive texts if the primary phone is on and the watch is connected to a roaming cellular network or to the phone by Bluetooth.

Data

3G or 4G networks only. Not available in the USA.

Carrier rules · Checked October 8, 2026

Spark One Number - Apple

Apple Watch SE (2nd generation), Series 6 or later, Ultra or Ultra 2 with watchOS 11 or later; iPhone XS or later with iOS 18 or later and VoLTE enabled. North American-region Apple Watch models are not supported on the Spark network. An eligible Spark Pay Monthly phone plan is required.

Overseas use: limited

Calls

Cellular calls cannot be made or received abroad. Bluetooth or Wi-Fi connectivity is possible while the primary phone is in range.

Texts

Send and receive texts if the primary phone is on and the watch is connected to a roaming cellular network or to the phone by Bluetooth.

Data

4G networks only. Not available in the USA.

Apple Watch does not support handover between 4G and 3G; calls drop when moving between these networks.

Carrier rules · Checked October 8, 2026

Spark One Number - Samsung

Samsung Galaxy Watch 5 4G/LTE or later with the latest software; Samsung phone running Android 10 or later. An eligible Spark Pay Monthly phone plan is required.

Overseas use: limited

Calls

3G networks only. Not available in the USA.

Texts

Send and receive texts if the primary phone is on and the watch is connected to a roaming cellular network or to the phone by Bluetooth.

Data

3G or 4G networks only. Not available in the USA.

Carrier rules · Checked October 8, 2026

Before you buy

NZ prices, local stock and retailer offers are not verified in this edition. Catalog inclusion is not proof that a watch is sold locally or supported by a carrier.

Bluetooth and Wi-Fi features are separate from cellular plan eligibility. Check local availability of health features and payments with the manufacturer.