Instant eSIM delivery: Sent straight to your email.

Activates on arrival: Your eSIM starts counting once it connects at your destination.
24/7 customer support: Our team helps you install and activate your eSIM.
Live tracking: Easily check your data usage at any time.
Singapore, Malaysia, Thailand & Indonesia
VAT included
Choose your validity, then select the data allowance for your trip.
Technical details for Singapore, Malaysia, Thailand & Indonesia
These details change with the plan you select above. Read them carefully before buying so you pick the right plan for your trip.
Data and speed
- Selected plan: Singapore, Malaysia, Thailand & Indonesia · 1GB / day · 1 day
- Validity: 1 day
- Plan type: Daily data
- High-speed data: 1 GB per day
- Usage policy:
1 GB of high-speed data per day. After that, speed drops to 128 kbps.
Activation and validity
- Activation: Automatic when the eSIM first connects to a network at your destination
- How a day is counted: Each day is a full 24 hours
- Identity verification (KYC): Not required.
eSIM and devices
- SIM type: eSIM
- Phone number: None, the eSIM is data-only
- Top-up: Not available; buy a new plan when your data or validity runs out
- Supported devices: An eSIM-capable, carrier-unlocked phone.
Coverage
- IndonesiaOperators: XL / Smartfren · Network: 4G, 5G · APN: plus
- MalaysiaOperators: U-Mobile / Digi / Celcom · Network: 4G, 5G · APN: plus
- SingaporeOperators: Singtel · Network: 4G, 5G · APN: plus
- Thái LanOperators: DTAC / AIS · Network: 5G, 4G · APN: plus
Staying connected in Singapore, Malaysia, Thailand & Indonesia
This four-country plan suits longer journeys through South-East Asia: a Singapore, Malaysia and Thailand tour, Singapore plus a few nights on Batam or Bintan by ferry, or a backpacking loop from Bangkok to Penang, Kuala Lumpur and Bali. You avoid buying a new eSIM in every country, which helps when flights leave early or land late.
Connections are when you need data most: comparing budget flights, checking in online, booking a ride from the airport and rearranging rooms when plans shift. Note that dry seasons differ: Thailand is most comfortable from around November to February, while Bali is driest from about April to October.
Coverage and networks
This plan covers the destinations listed below, as published in the plan information (4 in total). Check every stop on your route against the table before buying.
| Destination | Vietnamese name |
|---|---|
| Singapore | Singapore |
| Malaysia | Malaysia |
| Thailand | Thái Lan |
| Indonesia | Indonesia |
There are 2 eSIM options for Singapore, Malaysia, Thailand & Indonesia. Each network belongs to the option it is listed with, so compare them before choosing.
| eSIM option | Named networks |
|---|---|
| Singapore, Malaysia, Thailand & Indonesia | Singapore: Simba, StarHub; Malaysia: Celcom, Digi, U Mobile; Thailand: AIS, TrueMove; Indonesia: Indosat, Telkomsel, XL |
| Singapore, Malaysia, Thailand & Indonesia – TikTok | Singapore: Singtel; Malaysia: U Mobile, Digi, Celcom; Thailand: DTAC, AIS; Indonesia: XL, Smartfren |
According to the plan information, the option (Singapore, Malaysia, Thailand & Indonesia – TikTok) roams from a Singapore home network: your phone connects to the networks above, but some apps and websites may see your location as Singapore.
“TikTok” is part of an option’s name. If you rely on a particular app, check the conditions of that exact plan; the label alone does not guarantee access to any app.
Signal and speed depend on where you are, your device and network conditions, and can differ between plans.
Choosing a data allowance
eSIM plans for Singapore, Malaysia, Thailand & Indonesia currently last 1 to 30 days and come in these types:
- Daily data (500MB to 100GB per day): suits a steady routine. Check when the daily allowance resets and what happens once it is used.
- Total data (3GB to 50GB): one allowance for the whole trip, handy when some days are heavier than others.
- Unlimited: always read the fair-use policy; after a set amount, speed may be reduced.
Suggestions for this trip
- Add up the total days across every country and choose a plan at least that long: 15 days means a 15-day plan, three or four weeks a 20- or 30-day plan.
- Backpacking with daily maps, rides and bookings: 1GB or 2GB of daily data.
- Use that swings between countries, with resort Wi-Fi some days and long travel days on others: 20GB or 30GB of total data for a month is more flexible; remote workers should look at an unlimited plan (fair-use policy applies).
Count your arrival and departure days. Before paying, check the exact plan for when validity starts, how days are counted, and whether hotspot, calls or SMS are included; these differ between plans.
Before you go
- Ride-hailing: Grab works in all four countries; add Gojek for Indonesia and Bolt for Thailand.
- Messaging: WhatsApp dominates in Singapore, Malaysia and Indonesia, while Thais mostly use LINE.
- Money: Four currencies; cards work well in cities, but withdraw a little cash in each country for markets, small eateries and local transport.
- Ferries to Batam and Bintan: The crossing from Singapore takes about an hour but you are entering another country, so bring your passport for immigration at both ends.
- Small islands and mountains: On Thailand's and Indonesia's smaller islands or when climbing volcanoes, mobile service can be patchy, so keep boat tickets and bookings saved on your phone.
- eSIM setup: Before buying, make sure your phone supports eSIM and is not carrier-locked. Install the eSIM before you fly, on a stable Wi-Fi connection, following the instructions sent with your plan.
- On arrival: Set the travel eSIM as your mobile data line and follow its roaming instructions. Turn off data roaming on your home SIM to avoid unexpected charges.
Handy tips for using your eSIM

Smooth side-by-side use
Keep your main SIM in the phone for calls or OTP codes and use the travel eSIM as your data line. All you need to do is pick the right SIM for mobile data in your settings.

When to install
Install the eSIM before your trip while you have a stable Wi‑Fi connection. On arrival, select the eSIM as your data line and turn on roaming exactly as the plan instructs.
What makes Simtel stand out?
Easy preparation before your trip. Peace of mind when you arrive.
Instant eSIM delivery & activation
The eSIM is delivered by email after payment; you can configure it before departure and use it when you arrive.
eSIM — no SIM swap needed
With an eSIM there is no shop to find, no SIM to wait for and no SIM tray to open; the whole process is digital.
No identity verification (KYC)
Travel data eSIM purchases do not require identity documents or long-term commitments.
Dual SIM support
Keep your primary SIM for calls or OTPs and use the eSIM as the data line during your trip.
No app required
No separate app is required; eSIM details and setup instructions are provided directly after purchase.
Here for you, 24/7
The Simtel team is here to help with eSIM installation and activation, whatever your time zone.
Frequently asked questions
Will there be any additional fees or charges when using the eSIM?
No. The price in your order already includes all costs, and there will be no additional charges during usage.
Will installing or inserting a travel SIM/eSIM affect my existing SIM/eSIM on the device?
No. Your existing SIM/eSIM will not be affected; you can use them simultaneously and switch between them flexibly in the settings.
How long will it take to receive the eSIM after successful payment?
The eSIM QR code will be sent via email within 2 minutes. Please ensure that you enter the correct email address when placing your order and check your Spam/Promotions folders. If you have not received it, please contact Simtel customer support for assistance.
When should I install the eSIM after receiving the QR code via email?
When installing the eSIM, please ensure your device has a stable 4G or WiFi connection. Therefore, it is recommended to install the eSIM about 2–3 hours before departure.
Can I make calls or send messages?
Simtel provides both data-only and call-enabled SIM/eSIM. Depending on the plan you choose, the SIM/eSIM may support full features or data usage only.
When using a travel SIM/eSIM and turning off my primary SIM, can I still use Zalo, Messenger,..?
Yes. As long as you have an internet connection from the travel SIM/eSIM, you can continue using Zalo, Messenger, and other apps normally even if your primary SIM is turned off.
Can I use WhatsApp, Viber, or Zalo with an eSIM?
Yes. You can still use calling and messaging apps such as WhatsApp, Viber, Zalo, etc., when using a travel eSIM.