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.

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

from £1.53/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£6.08£0.61/day

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

Travellers (one eSIM each)

1 × 3GB (valid 15 days) · 10-day trip£6.08

Every plan: QR by email in minutes · data-only, keep your number · days start on first connection · top up anytime · the total shown is the whole bill. What's included →

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.

Does an eSIM work in Bangkok?

Yes — the Thailand eSIM works in Bangkok wherever its partner networks have signal. 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.

Your guide to Bangkok

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 £1.53/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

£0.85

£2.53

—

5 days1GB

£0.51

£2.53

−40%

7 days1GB

£0.36

£2.53

−57%

10 days3GBPopular

£0.61

£6.08

−28%

15 days3GB

£0.41

£6.08

−52%

30 days5GB

£0.27

£8.12

−68%

Unlimited plans7 days £16.25·15 days £23.36·30 days £45.71

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

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

The short version.

A travel eSIM is data only. It sits next to your home SIM, so your number, texts and WhatsApp carry on as normal. Pick unlimited, priced per day, or a fixed bundle of GB if it's mostly maps and messages. Install it on Wi-Fi before you fly — the days only start once it first connects in Bangkok, and it finds a partner network on its own.

Coverage in Thailand.

5G in supported areas on compatible devices; 4G more widely available

Connected · 5G

AIS
TrueMove H
dtac

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.