Taiwan and Singapore eSIM: One Data Plan for Both Destinations

A Taiwan and Singapore eSIM can provide mobile data in both destinations through one digital travel profile. It is a convenient option for travellers combining Taipei, Taichung or Kaohsiung with Singapore without buying a new physical SIM after every flight.

The selected regional eSIM must explicitly include both Taiwan and Singapore. A plan described as an Asia or East Asia eSIM does not automatically cover every destination in the region, so always review the coverage list, validity, data allowance and activation conditions before purchasing.

One regional plan is normally the simplest option for a continuous two-destination itinerary. Separate Taiwan and Singapore eSIMs may be better when you will spend much longer in one destination, require different amounts of data or want different validity periods.

Quick answer: One regional eSIM can work in Taiwan and Singapore when both destinations are included in the plan. Install it before departure, select it for mobile data, enable Data Roaming and keep Network Selection on Automatic.

Can One eSIM Work in Taiwan and Singapore?

Yes. A compatible regional eSIM can connect to supported partner networks in Taiwan and Singapore without requiring a second installation between flights.

The same eSIM can normally be used for:

• Navigation and public transport applications.
• Hotel and attraction bookings.
• WhatsApp, Viber and Messenger.
• Internet voice and video calls.
• Email and web browsing.
• Translation applications.
• Social media and photo sharing.
• Ride-hailing and food delivery applications.
• Flight and airport information.

The eSIM profile remains installed on your phone throughout the trip. After landing in the second destination, it searches for an available supported local network.

What Is the Recommended URL for This Page?

The recommended URL is:

/esim-singapore-and-taiwan/

This follows the established multi-country URL pattern with Singapore appearing first. The article can still target both keyword variations, including “Taiwan and Singapore eSIM” and “Singapore and Taiwan eSIM.”

Regional eSIM or Two Separate eSIMs?

Both options can provide mobile data, but they suit different travel plans.

Option	Best For	Main Consideration
One regional eSIM	Simple continuous travel	Both destinations must be included
Separate Taiwan and Singapore eSIMs	Different data needs or trip lengths	You must switch the active profile
Wider Asia eSIM	Trips continuing to more countries	May include more coverage than required

Advantages of One Regional eSIM

One installation

You install one digital profile before departure and keep it on your phone in both destinations.

No airport SIM purchase

You can avoid mobile shop queues, passport registration procedures and handling a physical SIM after landing.

One shared data allowance

Many regional plans use one allowance across all included destinations. Data not used in Taiwan may remain available in Singapore, and the same applies in the opposite direction.

Simpler travel setup

You normally do not need to scan another QR code or replace the APN when moving between the two destinations.

Your home SIM can remain active

On a compatible Dual SIM device, the regular SIM can stay available for calls, SMS and verification codes while the travel eSIM provides mobile data.

Possible Disadvantages of a Regional Plan

A regional plan is not always the most economical or flexible choice.

Possible limitations include:

• The data allowance is shared between both destinations.
• Validity usually continues without pausing during travel days.
• The supported local networks may differ from country-specific plans.
• The remaining data does not reset when you arrive in the second destination.
• A broad Asia plan may cost more than a plan covering only one country.

Compare the exact plan conditions rather than choosing only because the product covers several destinations.

When Separate Country eSIMs May Be Better

Separate Taiwan and Singapore plans may be more practical when:

• You will spend significantly longer in one destination.
• You need much more data in Singapore or Taiwan.
• You want independent validity periods.
• The trips are separated by several weeks.
• You want to monitor usage separately.
• A country-specific plan provides a more suitable allowance.

Label the profiles clearly as “Taiwan” and “Singapore” so you can select the correct line after each flight.

How to Confirm That Both Destinations Are Included

Before purchasing, open the plan details and verify that the coverage list explicitly includes:

• Taiwan.
• Singapore.

Also review:

• Total data allowance.
• High-speed data conditions.
• Validity period.
• Activation policy.
• Hotspot availability.
• Supported local partner networks.
• Whether the plan is data-only.

Do not assume that every Asia eSIM includes Taiwan, Singapore or all neighbouring destinations.

How Does the eSIM Switch Between Taiwan and Singapore?

The eSIM does not physically change when you travel. It remains installed and searches for an eligible partner network after you arrive in the second destination.

After landing:

1. Keep the regional eSIM enabled.
2. Select it for mobile data.
3. Keep Data Roaming enabled.
4. Leave Network Selection on Automatic.
5. Wait several minutes for registration.
6. Use Airplane Mode for 30 seconds if it does not connect.

The transition may take slightly longer while your phone is still connected to airport WiFi or searching for the previous network.

How to Install a Taiwan and Singapore eSIM

Install the eSIM before travelling while connected to stable WiFi.

Installation on iPhone

1. Open Settings.
2. Select Cellular or Mobile Service.
3. Tap Add eSIM.
4. Select Use QR Code.
5. Scan the installation code.
6. Label the profile “Taiwan and Singapore.”

Installation on Android

1. Open Settings.
2. Go to the SIM or mobile network section.
3. Select the option to add an eSIM.
4. Scan the supplied QR code.
5. Complete the installation.
6. Give the profile a clear label.

Menu names differ between Samsung, Google Pixel and other Android manufacturers.

When Should You Install the eSIM?

Install it before departure, but first check when the plan validity begins.

Depending on the product, activation may begin:

• When the eSIM first connects to a supported destination network.
• Immediately after installation.
• On a selected activation date.

If validity begins only after the first supported network connection, installing it before travel is usually the easiest approach.

How to Activate the eSIM After Arrival

1. Enable the regional eSIM.
2. Select it as the mobile data line.
3. Enable Data Roaming on the eSIM.
4. Disable Data Roaming on the home SIM.
5. Disable automatic mobile data switching.
6. Keep Network Selection on Automatic.
7. Turn off WiFi and test a webpage.

Allow several minutes for the phone to register on its first supported network.

Recommended Dual SIM Settings

Setting	Regional eSIM	Home SIM
Enabled	Yes	Optional
Selected for mobile data	Yes	No
Data Roaming	Enabled	Disabled
Calls and SMS	Not included	Optional
Automatic data switching	Disabled

This setup helps ensure that internet traffic uses the regional eSIM rather than the home operator’s roaming connection.

NoveSIM APN Settings

The APN is normally configured automatically. If the phone shows signal but mobile data does not work, check the following values:

Field	Value
Name	NoveSIM
APN	data.esim
Username	Leave empty
Password	Leave empty

Android users should save the APN and select it as active. Then turn Airplane Mode on for 30 seconds to refresh the connection.

Does the Same APN Work in Both Destinations?

Yes. When the same regional NoveSIM profile covers Taiwan and Singapore, keep the APN as data.esim in both destinations.

You should not need to create a new APN after changing countries.

Mobile Coverage in Taiwan

Mobile service is generally strong in Taiwan’s main cities and populated tourist areas, including:

• Taipei.
• Taichung.
• Tainan.
• Kaohsiung.
• Hsinchu.
• Keelung.

Coverage may vary in mountain areas, railway tunnels, remote coastal routes and isolated hiking locations.

Keep network selection automatic unless support instructs you to test a specific supported operator.

Mobile Coverage in Singapore

Singapore has extensive mobile coverage across its urban areas, transport system and major visitor districts.

Travellers can normally use mobile data in:

• Marina Bay.
• Orchard Road.
• Chinatown.
• Little India.
• Sentosa.
• Clarke Quay.
• Bugis.
• Changi Airport.

Reception may weaken inside lifts, underground car parks, certain MRT sections and buildings with thick walls.

Will the eSIM Work on Singapore’s MRT?

Mobile service is generally available across much of Singapore’s MRT network, although temporary changes in signal or speed can occur underground and while moving between stations.

Download important directions or save your destination address before starting a complicated journey.

Will the eSIM Work on Taiwan Trains?

Mobile data is available along many railway routes in Taiwan, but tunnels and mountainous sections can cause temporary interruptions.

Applications normally reconnect automatically when the train returns to an area with signal.

Will 5G Work in Taiwan and Singapore?

5G availability depends on:

• The supported local network.
• The regional eSIM plan.
• Your phone model.
• The device’s supported frequency bands.
• Your exact location.
• Indoor reception conditions.

Stable 4G or LTE is sufficient for maps, messaging, bookings, translation and internet calls. Keep the phone on an automatic 5G and 4G mode rather than forcing 5G only.

How Much Data Do You Need?

The right allowance depends on the trip length and whether you mainly use basic travel applications or more demanding services such as video and hotspot sharing.

Travel Style	Main Activities	Suggested Plan Type
Light use	Maps, messages and bookings	Small fixed-data plan
Regular tourist use	Navigation, social media and calls	Medium allowance
Heavy use	Video, hotspot and remote work	Larger fixed-data allowance
Daily intensive use	Streaming and frequent uploads	Review unlimited-style conditions

Does the Data Reset When You Change Countries?

Usually not. A regional eSIM normally uses one shared allowance across all covered destinations.

If you use part of the plan in Taiwan, only the remaining balance will be available in Singapore. The same applies when travelling in the opposite direction.

The validity period also usually continues and does not restart after the flight.

How to Make the Data Last Longer

• Download offline maps on WiFi.
• Disable automatic application updates.
• Pause cloud photo backups.
• Use hotel WiFi for large downloads.
• Reduce high-resolution video streaming.
• Restrict automatic media downloads in WhatsApp.
• Turn off Personal Hotspot when it is not needed.
• Check background application usage.

Can You Use WhatsApp in Taiwan and Singapore?

Yes. WhatsApp works through mobile data or WiFi in both destinations.

The regional eSIM does not normally change the number registered with your WhatsApp account. Keep the application connected to your existing number while the eSIM supplies internet.

You can use:

• Text and group messages.
• Voice messages.
• WhatsApp voice calls.
• WhatsApp video calls.
• Photo and document sharing.
• Live location sharing.

Does the eSIM Include a Local Number?

NoveSIM travel plans are data-only. They do not include:

• A Taiwanese telephone number.
• A Singaporean telephone number.
• Traditional voice minutes.
• Standard SMS messages.

Use WhatsApp, Viber, Messenger, FaceTime or another internet-based service for communication.

Can You Keep Your Home SIM Active?

Yes. On a compatible Dual SIM phone, the regular SIM can remain active while the regional eSIM is used for mobile data.

This may help you:

• Receive bank verification codes.
• Keep your usual number available.
• Receive important SMS messages.
• Maintain existing messaging accounts.

Disable Data Roaming on the home SIM because your regular operator may charge for roaming data.

Using the eSIM at Taiwan Airports

After arriving at Taoyuan, Taipei Songshan, Kaohsiung or another supported airport:

1. Enable the regional eSIM.
2. Select it for mobile data.
3. Enable Data Roaming.
4. Wait for network registration.
5. Move away from underground areas if reception is weak.

Turn off airport WiFi when testing the mobile connection.

Using the eSIM at Singapore Changi Airport

After landing at Changi Airport, disable Airplane Mode and allow the phone to search for a supported Singapore network.

If it does not connect immediately:

1. Confirm that the eSIM is enabled.
2. Check that it is selected for mobile data.
3. Keep Data Roaming enabled.
4. Wait several minutes.
5. Turn Airplane Mode on for 30 seconds.

Travelling From Taiwan to Singapore

1. Keep the regional eSIM installed.
2. Do not scan the QR code again.
3. Leave Data Roaming enabled.
4. Keep Network Selection on Automatic.
5. Turn off Airplane Mode after landing.
6. Wait for the Singapore network to appear.
7. Test mobile data with WiFi disabled.

The eSIM profile remains the same. Only the supported local partner network changes.

Travelling From Singapore to Taiwan

Use the same process when flying in the opposite direction.

After landing in Taiwan:

• Confirm the eSIM remains enabled.
• Check that it is still selected for mobile data.
• Keep roaming enabled.
• Leave network selection automatic.
• Turn off WiFi and test a webpage.

What If the eSIM Does Not Connect in the Second Destination?

Check the following before changing advanced settings:

• The second destination is included in the plan.
• The validity period has not ended.
• There is remaining data.
• The regional eSIM is selected for mobile data.
• Data Roaming is enabled.
• Automatic mobile data switching is disabled.
• Network Selection is Automatic.
• The APN is data.esim.

Then turn Airplane Mode on for 30 seconds and restart the phone if needed.

Signal Bars but No Internet

Visible signal without working internet often indicates a settings issue rather than missing network coverage.

Confirm that:

• The correct eSIM is selected for mobile data.
• Data Roaming is enabled on the travel profile.
• The APN is entered correctly.
• The plan remains active.
• The allowance is not exhausted.
• A VPN is not interfering with the connection.

Can You Manually Select a Network?

Manual network selection may be available, but not every operator visible on the phone is included in the eSIM agreement.

Selecting an unsupported network may result in:

• No Service.
• Signal without internet.
• Repeated registration attempts.
• An unstable connection.

Keep Network Selection on Automatic unless NoveSIM support provides a specific operator to test.

Should You Delete the eSIM Between Countries?

No. Do not delete the eSIM while travelling between Taiwan and Singapore.

Many QR codes can be used for only one installation. Removing the profile may prevent you from downloading it again.

Keep the eSIM installed until the trip is complete and you are certain it is no longer needed.

Can You Top Up the Same eSIM?

NoveSIM plans cannot normally be topped up or extended using the same QR code.

If additional data is required:

1. Purchase a new plan.
2. Connect to WiFi or another internet source.
3. Install the new eSIM.
4. Label it clearly.
5. Select the new profile for mobile data.

Do not remove the existing profile before confirming that the replacement has been installed successfully.

Is One eSIM Good for a Singapore Stopover?

Yes. A regional eSIM can be particularly practical when Singapore is a short stopover before or after Taiwan.

It can suit:

• A few days in Taipei followed by Singapore.
• A Singapore stopover before visiting Taiwan.
• A business trip covering both destinations.
• A connecting journey through Changi Airport.
• A wider Asia itinerary.

A shared plan avoids purchasing a separate short-validity product for a brief stay.

Is It Suitable for Remote Work?

A regional eSIM can support email, messaging, cloud access and video meetings when sufficient high-speed data is available.

Remote workers should review:

• Total high-speed allowance.
• Hotspot availability.
• Daily fair-use conditions.
• Plan validity.
• Coverage around accommodation.

Use reliable hotel or coworking WiFi for important meetings and large file transfers. Keep the eSIM as a flexible connection or backup.

Unlimited-Style Plan Conditions

NoveSIM unlimited-style plans include 1GB of high-speed data during each 24-hour period. After the daily allowance is used, speed may be reduced until the next reset.

Reduced speed may still support:

• Text messaging.
• Basic navigation.
• Light web browsing.

It may be less suitable for:

• Video meetings.
• High-resolution streaming.
• Large uploads.
• Extended hotspot use.

Is It Suitable for a Wider Asia Trip?

A Taiwan and Singapore eSIM is suitable for a two-destination itinerary. Travellers continuing to Japan, South Korea, Hong Kong, Malaysia or another country should compare a broader regional Asia plan.

Check every destination individually before purchasing. Regional product names do not guarantee identical coverage.

Compatibility Checklist

Check	Required Result
Taiwan included	Yes
Singapore included	Yes
Phone supports eSIM	Yes
Phone is carrier-unlocked	Yes
Installed before departure	Recommended
Selected for mobile data	Yes
Data Roaming	Enabled
Network Selection	Automatic
APN	data.esim when required

How to Check Whether Your Phone Supports eSIM

Dial *#06# and look for an EID. An EID usually indicates that the device supports eSIM technology.

Also confirm that:

• The exact phone model supports eSIM.
• The feature is available in the regional version of the device.
• The phone is carrier-unlocked.
• Dual SIM is available if you want to retain the home line.

Related Articles

• Best eSIM for Taiwan
• Best eSIM for East Asia
• East Asia Travel eSIM Guide
• How to Use an eSIM in Taiwan
• Does My eSIM Work in Taiwan?

FAQ

Can one eSIM work in Taiwan and Singapore?

Yes. Choose a regional eSIM that explicitly includes both Taiwan and Singapore.

What is the recommended URL for this page?

The recommended URL is /esim-singapore-and-taiwan/.

Do I need to reinstall the eSIM in Singapore?

No. Keep the same profile installed and allow it to connect to a supported Singapore network after arrival.

Does the remaining data carry over?

A regional plan normally uses one shared allowance, so the remaining balance continues to be available in the next covered destination.

Does the validity restart after the flight?

No. The validity period normally continues from the original activation and does not restart when you change countries.

Can I use WhatsApp in Taiwan and Singapore?

Yes. WhatsApp works through the eSIM’s mobile data while your account normally keeps its existing number.

What APN should I use?

Use data.esim when manual APN configuration is required.

Should I buy one regional plan or two separate plans?

A regional plan is simpler for continuous travel. Separate plans may be better when the stays, data needs or validity requirements are significantly different.

Final Recommendation

A Taiwan and Singapore regional eSIM is a convenient choice for travellers who want one mobile data setup across both destinations. Confirm that Taiwan and Singapore are explicitly included and select enough data for the entire journey.

Install the eSIM before departure using stable WiFi. After arrival, select it for mobile data, enable Data Roaming and keep Network Selection on Automatic. Use data.esim when manual APN configuration is required.

Keep the same profile installed when flying between Taiwan and Singapore. It should search for a supported local network after landing, so you do not need to scan the QR code again or change your WhatsApp number.