How much data do I need for a few days in Bangkok?

For maps, Grab, messaging and social uploads, most visitors use around 500MB to 1GB a day. If you stream video or hotspot a laptop, size up, as Bangkok's 4G and 5G are fast enough to burn through data quickly.

Does the same eSIM work on a day trip to Ayutthaya or a flight to Phuket?

Yes. This is one national Thailand plan, so the same eSIM keeps working in Ayutthaya, Kanchanaburi or anywhere else in the country, including if you fly onward to Phuket or Chiang Mai, with no new SIM or top-up needed.

Bangkok eSIM.

Name: Bangkok travel eSIM
Brand: My Holiday SIM

One eSIM for the BTS Skytrain, Chatuchak's maze and every Grab across Bangkok.

from $3.14/day · unlimited dataAll of Thailand →

Unlimited data5G where availableInstant QR by emailKeep your number

1 · How many days?

10 daysOther:days

2 · How much data?

3GBBest pricevalid 15 days$6.80$0.68/day

Cheapest plan covering your trip: 3GB, valid 15 days.

Travellers (one eSIM each)

1 × 3GB (valid 15 days) · 10-day trip$6.80

Good to know in Bangkok

Bangkok's BTS and MRT get packed at rush hour, but both now offer free Wi-Fi hotspots. Still, your eSIM saves you when a sudden downpour has everyone racing to book the same Grab.

Two simple ways to buy

Bangkok eSIM plans: unlimited, or by the GB.

Every Bangkok eSIM from My Holiday SIM is one of two straightforward types. Pick whichever fits how you travel in Bangkok — you can always top up or switch on your next trip.

Traveller streaming and browsing freely on an unlimited-data travel eSIM

Unlimited plans

High-speed data, nothing to count

Priced per day — the longer you stay, the better the daily rate. Ideal for streaming, hotspot and longer trips where you'd rather not watch a data meter. A fair-use policy keeps speeds fast for everyone; see each plan for the detail.

Best for streaming, video calls & hotspot
Great for longer or open-ended trips
One price per day — no GB anxiety

By-the-GB plans

3GB10GB20GB

A set bundle, brilliant value

A fixed data allowance (say 3 GB or 10 GB) valid for your travel days. The best-value pick for lighter trips built around maps, messaging and a bit of browsing. Running low? Top up in a couple of taps — nothing to reinstall.

Best value for lighter, shorter trips
Clear allowance — pay only for what you need
Top up any time from your phone

Compare plans →Not every destination has both types — the picker shows what's available where you're headed.

Plan your data

How much data do you need in Bangkok?

A rough, honest guide to sizing your Bangkok eSIM so you're not guessing. Most travellers in Bangkok are comfortable on 3–5 GB a week — heavy streamers just go Unlimited.

Traveller checking maps and messages on her phone using a My Holiday SIM eSIM

Not sure? Start with a 5 GB plan — you can top up in seconds if you run low.

Light

~1 GB / week

Maps, messaging & email

Google Maps, WhatsApp, email and the odd search. Plenty for a city break where you mostly need directions.

Suits 1–3 GB plans

Balanced

3–5 GB / week

Everyday holiday use

Everything above plus social scrolling, music, cloud photo backups and a little video. Where most travellers land.

Suits 5–10 GB plans

Bangkok eSIM: your local data guide.

Bangkok moves fast, and so should your phone. A Bangkok eSIM keeps Grab, Google Maps and the BTS Skytrain app live as you hop from the Grand Palace to Chatuchak Weekend Market, then translate a street-food order on Yaowarat's neon lanes after dark. Land, scan, and you're online before you clear immigration.

One eSIM for Bangkok and all of Thailand. It's the national Thailand eSIM — from $3.14/day with unlimited data, working the same in Bangkok as it does the moment you leave it.

Landing at Suvarnabhumi Airport (BKK); budget flights use Don Mueang (DMK)?

Install the QR at home, then switch the eSIM on as you taxi in — you're online before you reach the arrivals hall.

Bangkok eSIM pricingbest-value plan · per day

Days

Per day

Total

Saving

3 days1GB

$0.67

$2.00

—

5 days1GB

$0.40

$2.00

−40%

7 days1GB

$0.29

$2.00

−57%

10 days3GBPopular

$0.68

$6.80

—

15 days3GB

$0.45

$6.80

−33%

30 days5GB

$0.26

$7.71

−61%

Each trip length shows the best-value plan that covers it. Total always shown before you pay.

eSIM vs the old ways in Bangkok

eSIM

ROAMING

AIRPORT SIM

Data allowance

Unlimited

Usually capped

Rarely unlimited

Price known upfront

Prepaid

Billed after

Varies at the desk

Ready when you land

Instantly

After the queue

Keep WhatsApp number

SIM swapped

Bangkok eSIM from $3.14/day — the whole bill, agreed before you fly.

On the ground

Where you'll lean on data in Bangkok.

Sukhumvit

Lean on Grab and live BTS times to thread between rooftop bars, malls and the Nana and Asok interchanges.

Khao San Road

Quick maps and translation help you barter for tuk-tuks and read hostel reviews amid the backpacker crush.

Chatuchak Weekend Market

Dropped-pin navigation and photo uploads keep you from losing friends among thousands of tightly packed stalls.

Grand Palace & Rattanakosin

Mobile data powers audio guides, Chao Phraya river-boat timings and instant temple and tour bookings.

The practical bit

Getting around Bangkok on your eSIM.

Apps you'll want online in Bangkok

Grab— Thailand's main ride-hailing and food super-app; uses data to match a driver and track your fare live.
Bangkok MRT— The BEM metro app for live train times and QR-code tickets on the blue and purple lines.
ViaBus— Real-time tracking of Bangkok's buses, BTS and MRT so you know when the next one arrives.
MuvMi— Hail a shared electric tuk-tuk around the old town and riverside, booked and paid in-app.

How long to stay in Bangkok

Most visitors spend three to five nights in Bangkok, enough for the Grand Palace, Chatuchak, a Chao Phraya river trip and a couple of nights out on Sukhumvit or Khao San.

How much data for Bangkok

Between Grab, maps, LINE and constant social uploads, most people burn 500MB to 1GB a day here, so a balanced 3-5GB covers a long weekend; pick Unlimited if you stream or hotspot a laptop.

Coverage in Bangkok

Bangkok has some of Thailand's fastest 4G and widening 5G across the centre, the malls and both airports; the BTS and MRT stay connected, though data can stutter deep in tunnels between stations at rush hour.

Where you're headed

Discover Bangkok.

Bangkok, Thailand — skyline and landmarks · stay connected with a Bangkok eSIM from My Holiday SIM

Bangkok, Thailand — streets and everyday scenes · stay connected with a Bangkok eSIM from My Holiday SIM

Bangkok, Thailand — sights worth exploring · stay connected with a Bangkok eSIM from My Holiday SIM

Bangkok, Thailand — a travel moment · stay connected with a Bangkok eSIM from My Holiday SIM

How to activate your Bangkok eSIM.

Full installation guide →

A traveller happily planning her next trip with a map and phone

Buy your plan

Choose your days — the QR code arrives by email in seconds.

A traveller installing her eSIM from the sofa in two minutes

Install at home

Scan the QR on Wi-Fi before you fly. About two minutes, no app needed.

Friends laughing together while packing for a holiday

Fly relaxed

Nothing counts down yet — your days start only at first connection.

A joyful family reunion at the airport arrivals hall

Switch on in Bangkok

Turn the line on when you land. Connected before baggage claim.

New to eSIM in Bangkok?

What is a Bangkok eSIM?

A Bangkok eSIM is a digital SIM that's already built into your phone. Scan one QR code and a local Bangkok data plan installs alongside your home SIM — no plastic, no tray tool, no swap. Your number and WhatsApp stay exactly where they are.

✓ 2-minute install✓ Keep your number✓ Works on phones from 2018+

How eSIM works →Check my phone

A traveller with a backpack smiling at her phone — online abroad with My Holiday SIM

Connected · 5G

Home SIM · calls & WhatsAppHoliday eSIM · unlimited data

30-day refund promiseUnused, uninstalled eSIM? Full refund, no questions.

The price is the billPrepaid and final — roaming charges can't happen.

Days start when you landInstall early with zero pressure; counting begins at first connection.

Humans, 24/7Real people answer, before, during and after the trip.

Peace of mind

Your Bangkok eSIM: data-only, zero bill shock.

Your Bangkok eSIM handles the internet while you travel. Your home number stays exactly where it is — no surprise roaming charges in Bangkok, no swapping your real SIM out.

Keep your number & WhatsApp

The eSIM is data-only and runs alongside your home SIM. Your number, iMessage and WhatsApp keep working exactly as they do at home.

No roaming bills, ever

Turn data roaming OFF on your home SIM and ON for the eSIM. You pay once, up front — no overage, no metered surprises, no bill waiting when you land home.

One thing worth knowing

Because it's data-only, the eSIM can't receive bank verification (OTP) text codes — those still go to your home number. Keep it reachable on Wi-Fi calling, or use app-based codes.

Traveller relaxed and connected on her phone, no roaming bill to worry about

Why travellers choose My Holiday SIM for Bangkok.

Instant eSIM deliveryQR code in your inbox seconds after checkout — even at the departure gate.

No physical SIMNothing to collect, lose or poke out with a paperclip. Your home SIM stays put.

Keep your WhatsApp numberData flows through us; WhatsApp stays on your home number. Family always reaches you.

A traveller at the departure gate, eSIM ready on her phone

eSIM ready in ~2 minutes

No bill shock, everOne clear price before you fly. Roaming charges simply can't happen.

Secure paymentsCards, Apple Pay, Google Pay, PayPal and Klarna — encrypted end to end.

Real human supportReal people — before, during and after your trip. Live chat and email, no bots. Easy top-ups too.

Coverage in Thailand.

5G where available, fast 4G everywhere else

Connected · 5G

Your eSIM joins Thailand's partner networks automatically — no settings to choose, no manual network hunting. If signal drops in a remote spot, toggling Airplane Mode for a few seconds forces a fresh connection.

AIS
TrueMove H
dtac

Popular places covered

BangkokPhuketChiang MaiKrabiKoh SamuiPattaya

Keep data roaming ON for the eSIM line only — that's the switch travel eSIMs use, and it never adds charges on our plans.

Trusted networks, honest numbers.

No invented star ratings behind your Bangkok eSIM — just the numbers we actually stand behind.

Friendly globe with location pins — coverage on every continent

My Holiday SIMSTAY CONNECTED. ANYWHERE.

200+

destinations — every continent covered

regions covered by a single regional eSIM

~2 min

typical install — QR to connected

Live

chat & email support

Before you fly

Bangkok eSIM questions, answered.

Yes. Install and activate the eSIM before you fly, then switch it on after landing at Suvarnabhumi (BKK); it connects automatically to a local network like AIS or TrueMove H, ideal for booking your first Grab or the airport-rail link.

Your Bangkok eSIM glossary.

eSIMA SIM built into your phone's hardware. Plans install onto it digitally — no plastic card involved.

QR profileThe code we email you. Scanning it downloads your holiday plan onto the eSIM. One scan per device.

Data roaming (the switch)The toggle travel eSIMs use to join partner networks abroad. On our plans it never adds charges — keep it ON for the eSIM, OFF for your home SIM.

Hotspot / tetheringSharing your phone's data with laptops and tablets. Included on our plans wherever networks allow.

Top-upExtra days added to a live plan from your account. They append to the end — nothing overlaps.

First connectionThe moment your eSIM first joins a network at the destination — that's when your days start counting, not before.

Travelling wider in Thailand?