Taiwan and Hong Kong eSIM: One Data Plan for Both Destinations

A Taiwan and Hong Kong eSIM can provide mobile data in both destinations through one digital travel profile. It is a convenient option for travellers combining Taipei with Hong Kong without purchasing a new physical SIM or configuring a separate connection after each flight.

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

One regional plan is usually the simplest choice for a continuous two-destination trip. Separate Taiwan and Hong Kong eSIMs may be better when the stays have very different lengths, you require more data in one destination or the country-specific plans offer more suitable validity.

Quick answer: One regional eSIM can work in Taiwan and Hong Kong when both destinations are listed 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 Hong Kong?

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

You can normally use the connection for:

• Google Maps and other navigation applications.
• Public transport searches.
• 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 services.

The same eSIM profile remains installed throughout the journey and registers on an available supported network after arrival in each destination.

What Is the Recommended URL for This Page?

The recommended URL is:

/esim-hong-kong-and-taiwan/

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

Regional eSIM or Separate Country Plans?

Both options can provide reliable mobile data. The right choice depends on your itinerary and how much internet you expect to use in each destination.

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

Advantages of Using One Regional eSIM

One installation before departure

You download and install one profile while connected to reliable WiFi. It remains on the phone in Taiwan and Hong Kong.

No airport SIM purchase

You can avoid mobile shop queues, passport registration procedures and the need to handle a physical SIM after landing.

One shared data allowance

Many regional plans use one allowance across all included destinations. Data not used in Taiwan can remain available in Hong Kong, or the other way around.

Simpler Dual SIM setup

Your regular SIM can stay active for calls, SMS and verification codes while the regional eSIM is selected for mobile data.

Fewer settings to manage

You usually do not need to create a new APN or scan a second QR code when changing destinations.

Possible Disadvantages of a Regional eSIM

A regional product may be less suitable in some situations.

Possible limitations include:

• The data allowance is shared across both destinations.
• Validity normally continues without pausing during travel days.
• The supported networks can differ from country-specific plans.
• Unused data does not receive a new validity period after crossing the border.
• A wider regional plan may cost more than a plan for only one destination.

Compare the exact allowance, validity and included locations rather than choosing only by the regional label.

When Separate eSIMs May Be Better

Two separate profiles can be more practical when:

• You will spend significantly longer in one destination.
• You need a larger allowance in Hong Kong than Taiwan.
• You want different validity periods.
• Your visits are separated by several weeks.
• You prefer to track usage independently.
• A country-specific plan offers more suitable conditions.

Label the profiles clearly as “Taiwan” and “Hong Kong” to avoid selecting the wrong line for mobile data.

How to Confirm That Both Destinations Are Covered

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

• Taiwan.
• Hong Kong.

Also check:

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

Do not assume that every East Asia eSIM includes Hong Kong or that every Hong Kong plan also covers mainland China, Macau or Taiwan.

How Does the eSIM Switch Between Taiwan and Hong Kong?

The profile remains installed and searches for an eligible local 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 network registration.
6. Turn Airplane Mode on for 30 seconds if it does not connect.

Registration can take slightly longer while the phone is still connected to airport WiFi or searching for the previous network.

How to Install a Taiwan and Hong Kong eSIM

Install the eSIM before travelling while you have stable internet access.

Installation on iPhone

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

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 QR code.
5. Complete the installation.
6. Give the profile a clear label.

The exact menu names differ between Samsung, Google Pixel and other Android devices.

When Should You Install the eSIM?

Install it before departure, but first review the activation conditions.

Depending on the plan, validity may begin:

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

If activation begins only after the first supported network connection, early installation is normally the easiest option.

How to Activate the eSIM After Arrival

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

The phone may need several minutes to complete its initial registration.

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 configuration allows the eSIM to handle internet traffic while reducing the risk of roaming data charges on the regular SIM.

NoveSIM APN Settings

The APN is often configured automatically. If the phone displays signal but mobile internet 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. Refresh the connection with Airplane Mode after making changes.

Does the Same APN Work in Both Destinations?

Yes. When one NoveSIM regional profile covers Taiwan and Hong Kong, the APN remains data.esim in both destinations.

You should not need to replace it after crossing the border.

Mobile Coverage in Taiwan

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

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

Coverage may become less consistent in railway tunnels, remote coastal areas, mountain roads and isolated hiking locations.

Keep Network Selection on Automatic unless support instructs you to test a specific partner network.

Mobile Coverage in Hong Kong

Hong Kong generally has extensive mobile service across its densely populated urban areas and main transport corridors.

Travellers can normally use mobile data in:

• Hong Kong Island.
• Kowloon.
• The New Territories.
• Major shopping districts.
• MTR stations and surrounding areas.
• Popular tourist attractions.
• Airport and transport connections.

Reception can still weaken inside lifts, underground sections, thick-walled buildings and less populated hiking areas.

Will the eSIM Work on the Hong Kong MTR?

Mobile service is available across much of the MTR system, but temporary changes in speed or signal can occur underground and while moving between stations.

Download important routes and destination addresses before starting the journey, especially when making several transfers.

Will the eSIM Work on Taiwan Trains?

Mobile data is generally available along many railway routes, although tunnels and mountainous sections can create temporary interruptions.

Messages and applications normally reconnect when the phone returns to an area with coverage.

Will 5G Work in Taiwan and Hong Kong?

5G availability depends on:

• The local partner network.
• The plan conditions.
• Your phone model.
• The device’s supported frequency bands.
• Your exact location.
• Indoor signal conditions.

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

How Much Data Do You Need?

Your required allowance depends on the length of the trip and whether you mainly use navigation or more demanding services such as streaming and hotspot sharing.

Travel Style	Main Activities	Suggested Plan Type
Light use	Maps, messages and bookings	Small fixed-data allowance
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 carefully

Does the Data Reset When You Change Destinations?

Usually not. A regional plan normally provides one shared data allowance for all included destinations.

If part of the allowance is used in Taiwan, only the remaining balance will be available in Hong Kong. The same applies when travelling in the opposite direction.

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

How to Make the Data Last Longer

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

Can You Use WhatsApp in Taiwan and Hong Kong?

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

The data-only eSIM does not normally change the number connected to your WhatsApp account. Keep the application registered to your existing number.

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 eSIMs are data-only and do not include:

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

Use WhatsApp, Viber, Messenger, FaceTime or another internet-based service for calls and messages.

Can You Keep Your Home SIM Active?

Yes. On a compatible Dual SIM phone, the home SIM can remain available while the travel eSIM is selected for internet.

This can help you:

• Receive bank verification codes.
• Keep your usual number active.
• 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 the network to register.
5. Move away from underground areas if reception is weak.

Turn off airport WiFi when testing whether the mobile connection works.

Using the eSIM at Hong Kong International Airport

The regional profile should search for a supported Hong Kong network after Airplane Mode is disabled.

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 on.
4. Wait several minutes.
5. Use Airplane Mode for 30 seconds.

Travelling From Taiwan to Hong Kong

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. Disable Airplane Mode after landing.
6. Wait for the Hong Kong network to appear.
7. Test mobile data with WiFi turned off.

The eSIM should remain the same. Only the local partner network changes.

Travelling From Hong Kong to Taiwan

Follow the same procedure when travelling in the opposite direction.

After landing in Taiwan:

• Confirm the eSIM remains active.
• Check that it is still the selected data line.
• Keep roaming enabled.
• Leave network selection automatic.
• Test a webpage or map application.

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

Check the following before changing any 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 necessary.

Signal Bars but No Internet

A visible network signal without internet often indicates a settings issue rather than missing 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 Choose a Network?

Some eSIMs permit manual network selection, but not every visible operator is included in the plan.

Selecting an unsupported network may result in:

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

Keep Network Selection on Automatic unless NoveSIM support provides a specific network instruction.

Should You Delete the eSIM Between Destinations?

No. Do not delete the eSIM when flying between Taiwan and Hong Kong.

Many QR codes permit only one installation. Removing the profile may prevent you from downloading it again.

Keep the eSIM installed until the entire trip has ended and you are certain the profile is no longer required.

Can You Top Up the Same Profile?

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

When additional data is needed:

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 current profile before confirming that the replacement is installed successfully.

Is One eSIM Good for a Hong Kong Stopover?

Yes. A regional plan is especially practical when Hong Kong is a short stopover before or after Taiwan.

It can suit:

• A few days in Taipei followed by Hong Kong.
• A Hong Kong city break before visiting Taiwan.
• A business trip covering both destinations.
• A connecting journey through Hong Kong International Airport.
• A wider East Asia itinerary.

A shared plan avoids purchasing a separate product for a brief visit.

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.
• Validity.
• Coverage near accommodation.

Use hotel or coworking WiFi for important meetings and large file transfers, and 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 messages.
• Basic navigation.
• Light web browsing.

It may be less suitable for:

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

Is This Plan Suitable for a Wider East Asia Trip?

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

Check every country or destination individually before purchase. Regional product names do not guarantee identical coverage.

Compatibility Checklist

Check	Required Result
Taiwan included	Yes
Hong Kong 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. The presence of an EID usually indicates that the device supports eSIM technology.

Also confirm that:

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

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 Hong Kong?

Yes. Choose a regional eSIM that explicitly lists both Taiwan and Hong Kong in its coverage.

What is the recommended URL for this page?

The recommended URL is /esim-hong-kong-and-taiwan/.

Do I need to reinstall the eSIM in Hong Kong?

No. Keep the same profile installed and allow it to connect to a supported local 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 reset when you change destinations.

Can I use WhatsApp in Taiwan and Hong Kong?

Yes. WhatsApp works through the eSIM’s mobile data while your account normally keeps its existing telephone 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 can be better when the stays, data requirements or validity needs differ significantly.

Final Recommendation

A Taiwan and Hong Kong regional eSIM is a convenient solution for travellers who want one mobile data setup across both destinations. Confirm that Taiwan and Hong Kong are explicitly included and choose an allowance that can cover the entire journey.

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

Keep the eSIM installed when travelling between Taiwan and Hong Kong. The same profile 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.