Thailand Unlimited 30 days
AIS / True Move H / NT
- Data
- Unlimited (FUP)
- Validity
- 30 days
- Hotspot
- Yes
- Technology
- 4G / 5G
- Unlimited
- 5G ready
- Hotspot
Validity starts on first connection at the destination
from$55.90
Travel eSIM, built for Thai travellers
Travel eSIM for every trip: buy online, install in minutes, connected when you land
Pick a plan by country or region, install it before you leave home, and switch it on when you land. No SIM queue at arrivals, no giving up your own number.
- 200+ destinations
- Install before you fly
- Keep your own number
- Full conditions before checkout
Plan your trip, find the right plan
Three answers, and we will tell you the shape of plan and the rough data size to look for.
Plan your trip, find the right plan
We suggest
A fixed plan of about 8GB for 7 days
The figure comes from the usage level you picked times your days, plus 15% headroom — not from any plan's price or our margin.
Where Thai travellers buy eSIMs most
Each page lists plans, the networks operating there, and how data behaves on the ground.
Plans with strong value per gigabyte right now
Ranked on price per GB, validity and features — not weighted by what we earn.
Unlimited
Hong Kong Unlimited 30 days
CSL / HKT / China Mobile Hong Kong / SmarTone
- Data
- Unlimited (FUP)
- Validity
- 30 days
- Hotspot
- Yes
- Technology
- 4G / 5G
- Unlimited
- 5G ready
- Hotspot
Validity starts on first connection at the destination
from$56.90
Vietnam Unlimited 30 days
Viettel / Vinaphone / MobiFone
- Data
- Unlimited (FUP)
- Validity
- 30 days
- Hotspot
- Yes
- Technology
- 4G / 5G
- Unlimited
- 5G ready
- Hotspot
Validity starts on first connection at the destination
from$57.90
Singapore Unlimited 30 days
Singtel / StarHub / M1
- Data
- Unlimited (FUP)
- Validity
- 30 days
- Hotspot
- Yes
- Technology
- 4G / 5G
- Unlimited
- 5G ready
- Hotspot
Validity starts on first connection at the destination
from$58.90
China Unlimited 30 days
China Mobile / China Unicom / China Telecom
- Data
- Unlimited (FUP)
- Validity
- 30 days
- Hotspot
- Yes
- Technology
- 4G / 5G
- Unlimited
- 5G ready
- Hotspot
Validity starts on first connection at the destination
from$60.90
Taiwan Unlimited 30 days
Chunghwa Telecom / Taiwan Mobile / Far EasTone
- Data
- Unlimited (FUP)
- Validity
- 30 days
- Hotspot
- Yes
- Technology
- 4G / 5G
- Unlimited
- 5G ready
- Hotspot
Validity starts on first connection at the destination
from$60.90
Plan data last synced September 4, 2026
From checkout to connected in a few minutes
1
Choose your destination and plan
Read the data, validity, networks used and hotspot rules in each plan's spec table before you decide.
2
Pay and get the eSIM by email
We only order from the supplier after payment succeeds, then send the QR code and install steps to your inbox.
3
Install at home on Wi-Fi
Installation needs internet, so do it before you fly. Installing is not activating — the clock has not started yet.
4
Switch the line on when you land
Leave airplane mode, enable the eSIM line, set it as the data line, and keep roaming data off on your home SIM.
We sell connectivity, not promises
Conditions before checkout, not after
Every plan shows the networks used, activation policy, speed ceilings and hotspot rules in one table.
Rankings do not follow our margin
Recommendations are computed from price per GB, validity and features only — never weighted by what we earn.
Clear line between our plans and partner deals
Partner deals name the seller and disclose our commission; payment and after-sales support stay with them.
Support from people
Reach us on LINE or by email at esimonline.asia@gmail.com. We do not claim 24/7 cover we cannot actually staff.
Four genuinely different shapes, and the catch in each
| Type | Suits | Watch out for |
|---|---|---|
| Fixed GB | Short to medium trips where you know your usage | Unused data expires with the plan |
| Daily | Long trips or steady daily use | Full-speed data resets daily and does not carry over |
| Unlimited | Travellers who do not want to count gigabytes | There is a daily full-speed ceiling; past it you are throttled under FUP |
| Regional | Itineraries that cross several countries | Higher price per GB than single-country plans, with some territories excluded |
How many gigabytes does this trip need?
Computed from how you use data, not from the plan we would like to sell.
8 GB
About 0.9 GB a day over 7 days, plus 15% headroom for the heavier days.
This is an estimate from typical usage patterns, not a measurement of your phone. For a real number, check the data usage stats from your last trip.
Find a plan with this much dataOne regional plan for a multi-country trip
Covered-country lists come from the same data we sell on, not hand-written copy.
Asia
29 countries
Middle East
9 countries
Europe
43 countries
North America
3 countries
Latin America
19 countries
Africa
24 countries
Oceania
9 countries
Global
112 countries
Which plan fits which trip
eSIM for a 3–5 day trip
A long weekend does not need a month of data. Match the days, keep the rest of your budget for food.
eSIM for a 30-day-plus stay
Long stays hinge on two things: validity length and whether you can top up without reinstalling.
eSIM for business travel
Calls, email and large files need steadier data than a leisure trip.
eSIM for digital nomads
Working across countries needs volume, tethering, and not rebuying every time you move.
eSIM for families
Buy one for each phone, or one big plan and share the hotspot — pick what matches how your family travels.
eSIM for tour groups
The guide must stay reachable and nobody should get lost during free time.
eSIM for companies and teams
Central purchasing, one receipt, and the team online the moment they land.
eSIM for exchange students
The first week is the heaviest: housing, registration and calls home.
Free tools to decide with, no sign-up
Work out how many GB this trip needs
Enter your days and how you use data, then see the GB figure to buy without overpaying for headroom you never touch.
Answer four questions, see which kind of plan fits
It does not push one product. It tells you which type of plan suits your trip: single country, regional, daily, or unlimited.
Search your model and see if it takes an eSIM
Type a model such as iPhone 13 or Galaxy S22 and read the answer, plus the in-phone check that beats any lookup table.
eSIM or roaming: which is cheaper for this trip
Enter the roaming price your own operator charges and the plan price you are looking at, then read the difference across the whole trip.
Rent a pocket wifi or use an eSIM
Pocket wifi is shared across devices but costs a daily rental and has to be returned. Put your trip's numbers in.
How many hours does your data actually last
Pick an activity and see the gigabytes turn into hours.
Guides written from the questions travellers actually ask
What is an eSIM and how does it work?
A SIM built into the phone that downloads an operator profile instead of taking a plastic card.
Last updated September 1, 2026
How to install an eSIM, step by step
Install at home on Wi-Fi so only one switch remains when you land.
Last updated September 1, 2026
Seven mistakes first-time eSIM users make
Almost every support case comes from these seven, and all are preventable before boarding.
Last updated September 1, 2026
eSIM installed but no signal: how to fix it
Work through this order — most cases resolve in five minutes without contacting anyone.
Last updated September 1, 2026
How much data do you actually need abroad?
Real figures by usage pattern, plus how to work out your own trip.
Last updated September 1, 2026
What unlimited really means on a travel plan
Unlimited in volume, limited in speed after a daily threshold — here is what to read before buying.
Last updated September 1, 2026
Stuck on the road? Answers in steps
The help centre covers 14 categories, from installation to refunds.
For companies and teams that travel
Bulk ordering, plans for several staff at once, and the paperwork finance needs — with terms and pricing stated up front.
BusinessBulk orders for tour groups
Tell us the number of devices, the destinations and the travel dates, and we deliver the QR codes as one batch with a distribution sheet.
ContactHow we make money, and where this data comes from
Plan data in this build comes from a demo supplier used to exercise the system. Prices and networks are replaced with live data once a supplier API is connected.
We earn from the margin on the plans we sell ourselves and from commission on partner deals, which we label every time. We do not take payment to change rankings, and we never mark a plan as best because it pays us more.
The questions we are asked most
What is an eSIM and how does it differ from a normal SIM?+
An eSIM is a SIM profile installed straight onto a chip inside the phone. There is no plastic card, so you can buy and install before you travel and keep your existing SIM in place.
When does the validity start?+
Most plans start on first connection at the destination rather than at purchase, though some start at purchase. Each plan's spec table states which.
Do I keep my own number?+
Yes. A travel eSIM is a separate data line; your home SIM stays in the phone and still receives calls and bank OTPs. Just switch its roaming data off.
Does my phone support eSIM?+
Dial *#06# and look for an EID line. You can also search your model in our device checker, though what the handset itself reports is the most reliable answer.
How far ahead should I buy?+
For plans that start on first connection you can buy whenever, but install one to two days before the flight so there is time to fix any problem.
What if installation fails?+
Message us with your order number, handset model and a screenshot of the cellular settings. Do not delete the profile — it installs only once.
Can I share a hotspot?+
Only on plans that say so, and we show it in every spec table. Some plans, especially cheap unlimited ones, restrict or forbid it.
Is there a phone number and SMS?+
Most plans are data-only with no number for SMS. If you need Thai bank OTPs, keep your home SIM in the phone with that line enabled.
What speeds should I expect?+
It depends on the networks the plan uses and local congestion. We do not guarantee a speed figure, and we do not publish test results we did not run.
Can prices show in another currency?+
Yes, from the header. Prices are held in USD and converted for display; the amount actually charged depends on the payment provider and your bank.
Can I top up?+
Only on plans marked as top-up capable. If yours is not, buy another plan and install it as a second profile on the same phone.
When can I get a refund?+
The refund policy sets it out: broadly, when a plan does not work as described and cannot be fixed. Plans already activated and used generally cannot be refunded.
Pick a destination and land already connected
Questions before you buy? Message us on LINE or email esimonline.asia@gmail.com.