How to Use an eSIM in New Zealand: Complete Travel Setup Guide

Using an eSIM in New Zealand gives you access to mobile data without replacing your usual SIM card or visiting a mobile shop after arrival. Once the digital profile is installed and configured correctly, you can use it for maps, transport information, accommodation bookings, messages and everyday internet access.

The main task is not simply adding the eSIM to your phone. You must also enable the travel line, select it for Mobile Data, turn on Data Roaming for that line and prevent the phone from switching back to your primary SIM.

Quick answer: install the eSIM through reliable WiFi, enable it when you are ready to use it in New Zealand, select it as your Mobile Data line, turn on Data Roaming for the travel eSIM and disable Automatic Data Switching. Keep Data Roaming off on your primary SIM to reduce the risk of unexpected charges.

How Does a New Zealand eSIM Work?

An eSIM is a digital mobile profile stored inside a compatible phone. Instead of inserting a physical SIM card, you download the profile using a QR code or manual installation details.

After installation, the travel eSIM appears as an additional mobile line in your phone settings. You can then decide which SIM handles mobile data, calls and messages.

Phone Function	Recommended Line
Mobile data in New Zealand	Travel eSIM
Incoming calls on your usual number	Primary SIM when required
SMS and verification codes	Primary SIM when required
WhatsApp, Viber and internet calls	Travel eSIM data connection

Many travel eSIMs provide mobile data without a traditional local telephone number. Check the selected plan if ordinary calls or SMS are important for your trip.

What to Do Before Travelling to New Zealand

Complete the essential preparation before departure. Installation is easier while you have reliable WiFi and access to another screen for displaying the QR code.

• Confirm that your phone supports eSIM.
• Check that the device is carrier-unlocked.
• Install the travel eSIM through reliable WiFi.
• Save the QR code and installation instructions.
• Label the new line clearly.
• Review when the plan validity begins.
• Keep your primary SIM installed.
• Download offline maps as a backup.

You can check eSIM support by dialling *#06# and looking for an EID. You can also open your phone’s SIM settings and look for Add eSIM, Add Mobile Plan, Add Cellular Plan or a similar option.

Check whether your phone supports a New Zealand eSIM.

Install the eSIM Before Departure

Installing the eSIM before travelling is usually the most convenient approach. The process generally involves scanning the supplied QR code from the official SIM settings on your phone.

Install the eSIM on iPhone

1. Open Settings.
2. Select Mobile Service or Cellular.
3. Tap Add eSIM.
4. Select Use QR Code.
5. Scan the supplied QR code.
6. Complete the installation prompts.
7. Label the new line New Zealand, Travel eSIM or NoveSIM.

Install the eSIM on Samsung Galaxy

1. Open Settings.
2. Select Connections.
3. Open SIM Manager.
4. Tap Add eSIM.
5. Select the QR-code option.
6. Scan the supplied code.
7. Confirm the profile download.

Install the eSIM on Google Pixel

1. Open Settings.
2. Select Network & Internet.
3. Open SIMs.
4. Tap Add SIM.
5. Select Set Up an eSIM or Download a SIM Instead.
6. Scan the QR code.
7. Complete the setup.

For more detailed instructions, read how to install a New Zealand eSIM.

When Should You Turn the eSIM On?

The correct timing depends on the plan’s activation conditions. Some plans begin when the eSIM first connects to a supported network, while others may start at installation or another specified point.

Review the supplied instructions before enabling the eSIM too early. A practical approach is to install the profile before departure and select it for Mobile Data when you are ready to use it in New Zealand.

How to Start Using the eSIM After Arrival

After landing in New Zealand, complete these steps in order:

1. Open the phone’s SIM or Mobile Service settings.
2. Turn on the New Zealand travel eSIM.
3. Select it as the preferred SIM for Mobile Data.
4. Enable Data Roaming for the travel eSIM.
5. Turn off Data Roaming on the primary SIM.
6. Disable Automatic Data Switching.
7. Leave Network Selection on Automatic.
8. Wait several minutes for the phone to register on a supported network.

If the phone has just left Airplane Mode, it may need a short time to connect.

Recommended Settings for Using an eSIM in New Zealand

Setting	Recommended Value
New Zealand travel eSIM	Enabled
Preferred Mobile Data SIM	Travel eSIM
Data Roaming on travel eSIM	On
Data Roaming on primary SIM	Off
Automatic Data Switching	Off
Network Selection	Automatic
APN	data.esim when required

The exact menu names vary between iPhone, Samsung Galaxy, Google Pixel and other Android devices.

How to Use the eSIM on iPhone

1. Open Settings.
2. Select Mobile Service or Cellular.
3. Tap the New Zealand eSIM.
4. Turn on Turn On This Line.
5. Return to the Mobile Service menu.
6. Open Mobile Data.
7. Select the New Zealand eSIM.
8. Turn off Allow Mobile Data Switching.
9. Open the travel eSIM settings again.
10. Select Mobile Data Options.
11. Turn on Data Roaming.

Your primary SIM can remain active for calls and SMS, but its Data Roaming setting should remain off unless you deliberately want to use your home operator abroad.

Read the New Zealand eSIM guide for iPhone.

How to Use the eSIM on Android

Samsung Galaxy

1. Open Settings.
2. Select Connections.
3. Open SIM Manager.
4. Enable the New Zealand eSIM.
5. Select it for Mobile Data.
6. Open Mobile Networks.
7. Enable Data Roaming for the travel eSIM.
8. Disable automatic data switching.

Google Pixel

1. Open Settings.
2. Select Network & Internet.
3. Open SIMs.
4. Select the New Zealand eSIM.
5. Turn on Use SIM.
6. Enable Mobile Data.
7. Enable Roaming.
8. Select the travel eSIM as the preferred data line.
9. Disable automatic data switching when available.

Read the New Zealand eSIM guide for Android.

Why Data Roaming Must Be Enabled

Travel eSIMs commonly connect through partner networks in the destination. Data Roaming therefore normally needs to be enabled on the travel eSIM for mobile internet to work.

Apply this setting only to the travel line:

• Travel eSIM Data Roaming: On
• Primary SIM Data Roaming: Off

One of the most common setup problems is enabling the travel eSIM but leaving its Data Roaming option switched off.

Why Automatic Data Switching Should Be Off

Dual-SIM phones may automatically switch mobile data to another SIM when the selected connection becomes weak. During an international trip, this can cause the phone to use the primary SIM and potentially create roaming charges.

Turn off settings labelled:

• Allow Mobile Data Switching
• Automatic Data Switching
• Auto Data Switch
• Switch Mobile Data Automatically
• Backup Data Connection

Can You Keep Your Usual SIM Active?

Yes. A compatible Dual-SIM phone can keep the primary SIM active while the travel eSIM handles mobile data.

This may be useful when you need:

• Incoming SMS verification codes.
• Calls to your usual number.
• Mobile banking confirmations.
• Your existing WhatsApp account.

Your home operator may still charge for calls, voicemail, outgoing SMS or other roaming activity. Check its conditions before travelling.

Will WhatsApp Keep Your Existing Number?

WhatsApp normally continues using the number already registered to the account. Installing and using a New Zealand eSIM does not automatically change your WhatsApp number.

Do not choose Change Number unless you intentionally want to transfer the account to another telephone number.

You can use WhatsApp, Viber, Messenger, FaceTime and other internet-based services through the travel eSIM’s mobile data connection.

Does a Travel eSIM Include Calls and SMS?

Many travel eSIMs are data-only, although this depends on the selected plan. Check the product description if you need traditional voice calls, SMS or a New Zealand telephone number.

With mobile data, you can usually use:

• WhatsApp calls and messages.
• Viber calls and messages.
• FaceTime.
• iMessage.
• Messenger.
• Google Meet.
• Other internet-based communication services.

How to Use the eSIM for Maps and Navigation

A travel eSIM is particularly useful for navigation during city visits, road trips and public transport journeys.

To manage data efficiently:

• Download offline map areas before long drives.
• Save accommodation locations in advance.
• Keep important route details available offline.
• Use mobile data for live traffic and route changes.
• Carry a charged power bank on longer journeys.

Reception may vary on mountainous, rural, coastal, forested and sparsely populated routes. Offline maps are a useful backup even when you have an active eSIM.

How to Use the eSIM During a New Zealand Road Trip

When travelling between cities and remote attractions, mobile coverage can change frequently. The phone may move between 5G, 4G, slower service and no signal depending on location and network conditions.

• Leave Network Selection on Automatic.
• Download the next route before leaving a town.
• Save booking confirmations offline.
• Do not depend entirely on live navigation in remote areas.
• Charge the phone and power bank each night.
• Check data usage before streaming or uploading videos.

Read the New Zealand road-trip internet guide.

Can You Use the eSIM as a Hotspot?

Hotspot availability depends on the selected plan. When tethering is supported, you can share the phone’s mobile data with a laptop, tablet or another traveller.

Before using a hotspot:

• Check whether the plan permits tethering.
• Pause laptop software updates.
• Turn off cloud backup and file synchronisation.
• Use a strong hotspot password.
• Monitor data consumption.
• Keep the phone connected to power when possible.

Laptops can consume significantly more data than phones because of system updates, high-resolution websites, cloud services and video calls.

How to Monitor Data Usage

On iPhone

Open Settings → Mobile Service and review usage under the travel eSIM. Reset the statistics before travelling if you want a clear starting point.

On Android

Open Settings → Network & Internet or Connections → Data Usage. Select the travel eSIM where the device allows separate reporting for each SIM.

Your phone’s counter may not match the provider’s measurement exactly, but it is useful for identifying applications that consume large amounts of data.

How to Reduce Mobile Data Use

• Download offline maps through WiFi.
• Turn off automatic application updates.
• Pause cloud photo and video backup.
• Disable automatic video playback.
• Use accommodation WiFi for streaming.
• Enable Low Data Mode or Data Saver.
• Restrict background data for unnecessary applications.
• Download music and entertainment before travelling.
• Avoid large file uploads over mobile data.

How Much Data Do You Need?

Travel Behaviour	Suggested Starting Allowance
Maps, messages and light browsing	1 GB to 3 GB for a short trip
Regular browsing and social media	5 GB to 10 GB for one week
Longer holiday or road trip	10 GB to 20 GB
Frequent video uploads or calls	A larger allowance
Regular hotspot and remote work	A high-data plan

These are starting estimates rather than guarantees. Actual consumption depends on application settings, streaming quality, cloud backup and hotspot use.

See how much data you may need for New Zealand.

Will 5G Work with the eSIM?

5G availability depends on the device, selected plan, supported frequencies, local partner network, exact location and network congestion. A phone may alternate between 5G, 4G and slower service throughout the journey.

You do not need 5G for normal travel use. A stable 4G connection is generally sufficient for:

• Maps and navigation.
• Messaging.
• Transport applications.
• Accommodation bookings.
• Social media.
• Internet calls.

How to Configure the APN

Most phones configure the APN automatically. When manual setup is required, use:

Field	Value
Name	NoveSIM or Travel eSIM
APN	data.esim
Username	Leave blank
Password	Leave blank

Save the APN and make sure it is selected. Avoid changing unrelated fields unless different instructions were supplied with the plan.

What to Do If the eSIM Has Signal but No Internet

Signal bars show that the phone can detect a mobile network, but the data settings may still be incorrect.

1. Confirm that the travel eSIM is enabled.
2. Make sure it is selected for Mobile Data.
3. Enable Data Roaming for the travel eSIM.
4. Disable Automatic Data Switching.
5. Check the APN when manual configuration is required.
6. Confirm that the plan remains valid.
7. Turn WiFi off while testing the mobile connection.

What to Do If the eSIM Does Not Work

1. Open the phone’s SIM settings.
2. Confirm that the New Zealand eSIM is enabled.
3. Select it as the preferred Mobile Data line.
4. Turn on Data Roaming for the travel eSIM.
5. Turn off Data Roaming on the primary SIM.
6. Disable Automatic Data Switching.
7. Leave Network Selection on Automatic.
8. Enter data.esim as the APN when required.
9. Turn Airplane Mode on for 30 seconds.
10. Turn Airplane Mode off.
11. Wait several minutes.
12. Restart the phone if necessary.

If you are in a remote or mountainous area, test the connection again after reaching a town, main road or more open location.

Do not delete the eSIM while troubleshooting. The QR code may support only one installation, and deleting the profile can make recovery more difficult.

What If the Phone Shows No Service?

No Service may appear while the phone searches for a supported network or when the local signal is weak.

Check that:

• The plan includes New Zealand.
• The travel eSIM is turned on.
• The validity period has not ended.
• Network Selection is set to Automatic.
• The phone is in an area with available mobile coverage.

Mobile reception can vary in mountain passes, national parks, remote coastal areas, forests and sparsely populated regions. An eSIM cannot provide a connection where no supported mobile signal is available.

Should You Select a Network Manually?

Automatic Network Selection is the best starting point. It allows the phone to register on an available supported network without requiring manual changes.

Use manual selection only when support instructions specifically recommend it. Return the setting to Automatic if the selected network does not connect.

How to Avoid Roaming Charges on Your Primary SIM

• Select the travel eSIM for Mobile Data.
• Turn off Data Roaming on the primary SIM.
• Disable Automatic Data Switching.
• Check which line is selected before making traditional calls.
• Review voicemail charges with your home operator.
• Use internet-based calls through the travel eSIM when practical.

Can You Continue Using the eSIM After Leaving New Zealand?

This depends on the geographical coverage of the selected plan. A New Zealand-only plan may stop connecting after you leave the country, while a regional plan may include additional destinations.

Check the plan coverage before travelling onwards to Australia, Asia or another region. Do not assume that a New Zealand plan automatically works outside the country.

Should You Delete the eSIM After the Trip?

You can remove the profile after the plan has expired and you are certain that it is no longer needed. Keeping an expired eSIM disabled does not normally use mobile data.

Before deleting it:

• Confirm that the journey is complete.
• Check that no remaining plan validity is needed.
• Make sure you have selected the correct profile.
• Do not expect the original QR code to reinstall it later.

New Zealand eSIM Usage Checklist

• Confirm that the phone supports eSIM.
• Check that it is carrier-unlocked.
• Install the profile through reliable WiFi.
• Enable the travel eSIM when ready to use it.
• Select it for Mobile Data.
• Turn on Data Roaming for the travel eSIM.
• Turn off roaming on the primary SIM.
• Disable Automatic Data Switching.
• Leave Network Selection on Automatic.
• Use data.esim as the APN when required.
• Download offline maps for remote journeys.
• Monitor data usage.
• Never delete the eSIM during troubleshooting.

Related New Zealand Travel Internet Guides

• New Zealand eSIM Plans
• Best eSIM for New Zealand
• Buy an eSIM for New Zealand
• How to Install a New Zealand eSIM
• How to Activate a New Zealand eSIM
• Does My Phone Support eSIM in New Zealand?
• New Zealand eSIM for iPhone
• New Zealand eSIM for Android
• Mobile Internet in New Zealand
• Internet for a New Zealand Road Trip

FAQ

How do I use an eSIM after arriving in New Zealand?

Enable the travel eSIM, select it for Mobile Data, turn on Data Roaming for that line and disable Automatic Data Switching.

Should Data Roaming be on?

Yes, Data Roaming normally needs to be enabled on the travel eSIM. Keep it off on your primary SIM unless you deliberately want to use your home operator’s roaming service.

Can I keep my normal SIM active?

Yes. A compatible Dual-SIM phone can use the travel eSIM for mobile data while keeping the primary SIM active for calls and SMS.

Will WhatsApp keep my usual number?

Yes. WhatsApp normally keeps the number already registered to the account unless you manually choose Change Number.

Can I use a hotspot with a New Zealand eSIM?

Hotspot use depends on the selected plan. When tethering is supported, you can share the connection with another device.

What APN should I use?

Use data.esim when manual APN configuration is required.

Why does the eSIM show signal but no internet?

The travel eSIM may not be selected for Mobile Data, Data Roaming may be off or the APN may require manual configuration.

Should I delete the eSIM if it stops working?

No. Do not delete it while troubleshooting because the QR code may be valid for only one installation.

Final Recommendation

The easiest way to use an eSIM in New Zealand is to install it before departure and complete the mobile data settings after arrival. Select the travel eSIM for Mobile Data, enable Data Roaming on that line and disable Automatic Data Switching.

Keep roaming turned off on your primary SIM unless you deliberately want to use your home operator abroad. Leave Network Selection on Automatic and use data.esim only when manual APN configuration is required.

Download offline maps before travelling through remote regions, monitor your data use and keep the original installation information available. If the connection stops working, review the settings and restart the network connection, but never delete the eSIM during troubleshooting.

Browse New Zealand eSIM plans here.