How to Use Singapore eSIM for Travel | For Short Trips and Business Trips
For those planning a trip to Singapore or a short business trip, preparing your smartphone for communication is very important. You will often use your smartphone for moving from Changi Airport to your hotel, searching for maps, ride-hailing apps, finding restaurants, confirming reservations, posting on social media, and checking work emails.
In such cases, Singapore eSIM (Singapore eSIM) is very convenient. By adding a communication plan to a compatible smartphone without swapping out a physical SIM card, you can use data communication during your stay in Singapore.
This article will clearly explain the benefits of Singapore eSIM, preparations before departure, how to set it up, data capacity suitable for short trips and business trips, and points to note when using it, making it easy for beginners to understand.
Communication Methods Available for Singapore Travel and Business Trips
There are mainly four ways to access the internet during your stay in Singapore.
- International roaming with your line contracted in Japan
- Rental Wi-Fi
- Local physical SIM card
- Singapore travel eSIM
Each method varies in terms of usage, costs, whether you need to pick it up, what to carry, and how to set it up.
| Comparison Item | Singapore eSIM | Local SIM Card | Rental Wi-Fi | International Roaming |
|---|---|---|---|---|
| Preparation Method | Purchase and set up online | Purchase at the airport or store | Pre-reservation and pickup | Check with your current telecom company |
| SIM Swap | Not required | Required | Not required | Not required |
| What to Carry | Smartphone only | Smartphone only | Router and charger | Smartphone only |
| Pickup and Return | Not required | Received at purchase | Required | Not required |
| Suitable For | Short-term travelers and business people | People using devices that do not support eSIM | People who want to share with multiple users | People who want to use their regular line |
While international roaming can be easy to set up, costs and usage conditions vary depending on your contract. Rental Wi-Fi is easy to share among multiple devices, but it requires carrying a router, charging it, and picking it up and returning it.
Local SIM cards can sometimes be purchased at the airport or telecom company stores, but you may need to go through the purchase process, swap the SIM card, and set it up after arrival.
With Singapore eSIM, you can prepare online before departure, making it suitable for those who want to use their smartphones immediately after arriving at Changi Airport.
Available plans are here
→ View Singapore eSIM products and pricing plans
Situations Where Data Communication is Needed During Your Trip to Singapore
When Moving from Changi Airport to Your Hotel
Immediately after arriving in Singapore, you will need data communication for checking MRT or bus routes, arranging ride-hailing apps, and confirming hotel reservation information and addresses.
If you have a connection, you can smoothly move to your hotel while checking your current location and travel time.
When Moving by MRT or Bus
In Singapore, you will often use MRT or buses to move to tourist spots or business areas. It is convenient to check transfer routes and travel times to your destination using map apps.
When Using Ride-Hailing Apps like Grab
Using ride-hailing apps requires an internet connection for obtaining your current location, confirming your pickup location, displaying vehicle information, and communicating with the driver.
If you plan to use ride-hailing apps for transportation from the airport, hotel, or restaurants, make sure you can communicate while out.
When Searching for Restaurants or Tourist Spots
When looking for popular restaurants, cafes, or tourist spots, you may need to check hours of operation, reviews, menus, reservation pages, and routes from your current location.
If you want to change your plans while walking around the city, being able to search on your smartphone makes it easier to act.
When Checking Emails or Documents for Business Trips
During business trips, you will use data communication for checking emails while on the move, business chats, accessing cloud documents, and online meetings.
Relying only on Wi-Fi at hotels or conference venues may result in times when you cannot communicate while on the move. By preparing a Singapore eSIM, you can easily check communications and information even when you are out.
Benefits of Using Singapore eSIM
No Need to Swap SIM Cards
Singapore eSIM is used by adding a communication plan to your smartphone's internal settings. Since you do not need to remove the small SIM card you use in Japan, it is easier to prevent losing the SIM card.
Preparation Can Be Done Online Before Departure
You can purchase online and set it up using a QR code, reducing the hassle of searching for a SIM card at the local airport or store.
No Need for Pickup or Return
Unlike rental Wi-Fi, there is no need to pick up a dedicated router or return it after your trip. You can communicate using just your smartphone, making it suitable for short trips or business trips where you want to reduce your luggage.
Easy to Choose Based on Travel Days
Prepaid eSIMs are characterized by their ease of selecting plans based on the number of days of stay and required data capacity. You can choose according to your intended use, from short trips of a few days to business trips.
Can Keep Your Japanese SIM Line
If you have a dual SIM-compatible smartphone, you may be able to add Singapore eSIM while keeping your main line used in Japan.
However, if international roaming is enabled on your main line in Japan, unintended communication charges may occur. Please set the line for mobile data communication used locally to Singapore eSIM.
Who Should Use Singapore eSIM
- People who want to communicate immediately after arriving at Changi Airport
- People planning short trips or weekend trips
- People going on business trips to Singapore
- People who do not want to purchase a SIM card at the airport
- People who do not want to carry a Wi-Fi router
- People who do not want to remove their Japanese SIM card
- People who want to check emails and chats while on the move
If the smartphone you plan to use does not support eSIM, you will need to consider local SIM cards or rental Wi-Fi.
Before purchasing, please check the compatibility of your device on the list of eSIM-compatible devices.
How to Set Up Singapore eSIM
The Singapore travel eSIM is generally set up using the following steps.
- Check if your smartphone supports eSIM
- Check the status of SIM lock
- Select the number of travel days and data capacity
- Purchase Singapore eSIM
- Check the QR code received via email, etc.
- Add eSIM from the smartphone settings screen
- Scan the QR code to register the communication plan
- Turn on the relevant eSIM line after arriving in Singapore
- Select Singapore eSIM for mobile data communication
- Turn on data roaming if necessary
For detailed operation methods, please check the eSIM setup guide.
Set Up Before Departure
Adding eSIM may require a stable Wi-Fi environment. Therefore, it is advisable to complete the installation at home or elsewhere before departure.
However, the timing for starting usage may vary by product. Some products start the usage period from the installation point, while others start when connecting to the local line in Singapore, so please check the conditions of the purchased plan.
Keep the QR Code Until the End of Your Trip
The eSIM QR code may only be scannable once. Make sure not to confuse the device you are setting it up on, and do not delete the installed eSIM during your trip.
How to Choose Data Capacity for Short Trips and Business Trips
When choosing Singapore eSIM, it is important to consider not only the number of days of stay but also how you will use your smartphone locally.
| Main Usage | Data Consumption Trends | How to Choose Capacity |
|---|---|---|
| LINE and Email | Relatively low | If communication is the main focus, consider a low capacity |
| Maps and Web Searches | Low to moderate | If used daily while moving, allow for some extra |
| Ride-Hailing Apps | Relatively low | Even if used frequently, it does not consume a lot of capacity |
| Viewing SNS | Moderate | Capacity is consumed by displaying images and short videos |
| Posting Photos and Videos | Moderate to high | If posting frequently, consider a high capacity |
| Online Meetings | High | If used for business trips, choose a plan with ample capacity |
| Tethering | Varies depending on usage | Consider a high capacity plan when using a computer |
Short Trips Focused on Sightseeing
If your main usage is LINE, map searches, web searches, translation, and ride-hailing apps, relatively low data capacity may be sufficient.
If you frequently browse SNS, post photos, or search for café and shopping information, choose a plan with ample capacity.
Business Use
If you are only checking emails and chats, data consumption is relatively low, but if you are using online meetings, downloading cloud documents, or tethering, you will need more data capacity.
If you have important meetings or tasks, it is safer to choose a plan with a little extra capacity rather than the minimum required.
For guidelines based on usage purposes, please refer to data communication volume estimates.
Available plans are here
→ Check Singapore eSIM plans
Checklist Before Using Singapore eSIM
- Is the device compatible with eSIM?
- Is the SIM lock released?
- Is Singapore included in the supported countries?
- Do the travel schedule and plan validity match?
- Have you selected the necessary data capacity?
- Is the QR code in a retrievable state?
- Is the Singapore eSIM line turned on?
- Is Singapore eSIM selected for mobile data communication?
- Is it necessary to turn on data roaming?
- Is APN setting required?
- Is tethering supported?
If you have concerns about settings or usage conditions, please check the frequently asked questions about eSIM before traveling.
Points to Note When Using Singapore eSIM
Data Communication Only Plans Do Not Support Regular Calls or SMS
The Singapore eSIM from JAPAN&GLOBAL is a data communication-only plan, so it does not support outgoing or incoming calls or SMS using a regular phone number.
However, you can use calling and messaging apps that utilize data communication, such as LINE calls, Messenger, and Instagram.
If you need a regular phone number or SMS, please check the details of eSIM with a phone number and whether you can use your main line in Japan in conjunction.
Communication Conditions Vary by Location
Communication conditions may change depending on the local network, time of day, buildings, and congestion.
In underground sections of the MRT, deep inside buildings, within commercial facilities, and at event venues, communication may temporarily weaken.
Do Not Delete eSIM During Your Trip
Once you delete eSIM, you may not be able to reinstall it with the same QR code. If you cannot connect, do not delete eSIM immediately; check your line settings and roaming settings first.
Be Cautious of Overseas Communication via Your Main Line in Japan
If you have kept your Japanese line with dual SIM, mobile data communication may automatically switch to your main line in Japan.
To avoid unintended international roaming charges, please set Singapore eSIM for mobile data communication and turn off automatic switching of mobile data communication if necessary.
If You Cannot Connect to eSIM After Arriving in Singapore
If you cannot communicate after arriving in Singapore, please check the following items before deleting eSIM.
- Turn on airplane mode once and then turn it off
- Check if the Singapore eSIM line is turned on
- Check if Singapore eSIM is selected for mobile data communication
- Turn on data roaming
- Check if APN setting is required
- Set network selection to automatic
- Restart your smartphone
- Check the start date and validity period of the plan
Even if you cannot communicate, it is important not to delete eSIM immediately. If checking the settings does not improve the situation, prepare your order number, device name, OS, settings screen, error messages, etc., and contact support.
For general troubleshooting methods, please refer to how to check when eSIM cannot connect.
Frequently Asked Questions About Singapore eSIM
When Should I Set Up Singapore eSIM?
It is recommended to complete the addition of eSIM before departure in a stable Wi-Fi environment. However, some products may start the validity period from the time of installation, so please check the usage start conditions.
Can I Use It Immediately After Arriving at Changi Airport?
If you complete the installation before departure and correctly set the Singapore eSIM line, mobile data communication, and data roaming after arrival, you can use it after connecting to the local network.
Does Singapore eSIM Come with a Phone Number?
The data communication-only Singapore eSIM does not come with a regular phone number. You can use apps that utilize data communication, such as LINE calls.
Is APN Setting Required for Singapore eSIM?
Depending on the plan and device, it may be automatically set or require manual configuration. Please check the APN information provided after purchase.
Can I Use Tethering with Singapore eSIM?
Whether tethering is possible depends on the plan and device you are using. If you plan to connect a computer during a business trip, please check the compatibility before purchasing.
How Many GB Do I Need for a Short Trip?
If your main usage is maps, searches, messages, and ride-hailing apps, you can use relatively low capacity. If you plan to post on SNS, watch videos, hold online meetings, or tether, choose a plan with ample capacity.
Summary | Prepare Singapore eSIM Before Short Trips and Business Trips
During your trip to Singapore or short business trips, there are many situations where you will need smartphone communication for moving from the airport, searching for maps, using ride-hailing apps, confirming reservations, checking emails, and attending online meetings.
Singapore eSIM (Singapore eSIM) can be used without swapping SIM cards, and there is no need to pick up or return a Wi-Fi router. It is easy to prepare before departure, making it suitable for those who want to use the internet immediately after arriving at Changi Airport.
Before purchasing, please check the following points.
- Is the device compatible with eSIM?
- Do the travel days and plan validity match?
- Is the necessary data capacity included?
- Is data roaming or APN setting required?
- Do you need a phone number or SMS?
- Is tethering supported?
Choose a Singapore eSIM that suits your short trip or business trip duration and smartphone usage.
Available plans are here
→ View Singapore eSIM products and pricing plans
