Chiang Mai eSIM.
One eSIM for Chiang Mai — the Old City moat, Nimman cafés and Doi Suthep's peak.
Chiang Mai eSIM plans: unlimited, or by the GB.
Every Chiang Mai eSIM from My Holiday SIM is one of two straightforward types. Pick whichever fits how you travel in Chiang Mai — you can always top up or switch on your next trip.
Unlimited plansHigh-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
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
How much data do you need in Chiang Mai?
A rough, honest guide to sizing your Chiang Mai eSIM so you're not guessing. Most travellers in Chiang Mai are comfortable on 3–5 GB a week — heavy streamers just go Unlimited.

Google Maps, WhatsApp, email and the odd search. Plenty for a city break where you mostly need directions.
Everything above plus social scrolling, music, cloud photo backups and a little video. Where most travellers land.
Netflix by the pool, long video calls home and hotspot for the laptop — go Unlimited and stop counting.
Chiang Mai eSIM: your local data guide.
Chiang Mai rewards wanderers, from the temple-dotted Old City to the mountain road up Doi Suthep. A Chiang Mai eSIM keeps Grab, maps and Google Translate handy as you browse the Sunday Walking Street, book an ethical elephant sanctuary in the hills, or find a flat white among Nimman's coffee roasters. Set it up before you fly and land connected.
Install the QR at home, then switch the eSIM on as you taxi in — you're online before you reach the arrivals hall.
Where you'll lean on data in Chiang Mai.
Dropped pins guide you between Wat Chedi Luang, Tha Phae Gate and dozens of temples tucked inside the ancient moat.
Café reviews, co-working maps and QR payments all lean on a steady connection in this trendy, nomad-friendly district.
Navigate the switchback mountain road and share golden-temple views, though signal thins near the very summit.
Translation and QR-code payments help you haggle for handicrafts along Ratchadamnoen Road each week.
Getting around Chiang Mai on your eSIM.
- Grab— Ride-hailing in a city where red songthaew trucks are the only other easy option.
- Bolt— Cheaper rides, popular with Nimman's large digital-nomad and long-stay crowd.
- Google Maps— Navigates the switchback road up Doi Suthep and pins temples across the Old City moat.
- 12Go Asia— Books minivans, buses and the sleeper train onward to Pai, Chiang Rai and Bangkok.
Most people give Chiang Mai three to five nights, covering the Old City temples, a night market, an ethical elephant sanctuary and a day trip up into the hills.
City 4G is quick and Nimman runs on café Wi-Fi, so light users manage on around 1GB; remote workers and heavy streamers should size up to 5GB or Unlimited for daily video calls.
Chiang Mai's centre, Nimman and airport enjoy solid 4G and growing 5G, but signal thins on the forested climb to Doi Suthep's summit and fades fast on mountain roads toward Doi Inthanon and Pai.
Discover Chiang Mai.




How to activate your Chiang Mai eSIM.
Full installation guide →
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04What is a Chiang Mai eSIM?
A Chiang Mai eSIM is a digital SIM that's already built into your phone. Scan one QR code and a local Chiang Mai data plan installs alongside your home SIM — no plastic, no tray tool, no swap. Your number and WhatsApp stay exactly where they are.
Connected · 5G
Your Chiang Mai eSIM: data-only, zero bill shock.
Your Chiang Mai eSIM handles the internet while you travel. Your home number stays exactly where it is — no surprise roaming charges in Chiang Mai, no swapping your real SIM out.
The eSIM is data-only and runs alongside your home SIM. Your number, iMessage and WhatsApp keep working exactly as they do at home.
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.
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.

Why travellers choose My Holiday SIM for Chiang Mai.
eSIM ready in ~2 minutesCoverage in Thailand.
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
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 Chiang Mai eSIM — just the numbers we actually stand behind.

Chiang Mai eSIM questions, answered.
Your Chiang Mai eSIM glossary.
More cities in Thailand.
Worth reading before you fly.
Plan your Chiang Mai trip — guides & roaming tips.
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