Sawasdee, Thailand.Thailand
eSIM.
Hello, traveler. — Plans from $0.75
Connect across Thailand on AIS, DTAC, and True Move H networks. From Bangkok's Sukhumvit to Phuket's beaches, Chiang Mai's temples, and the islands of Koh Samui and Koh Tao. Instant-activation eSIM — works the moment you land at Suvarnabhumi or Don Mueang.
Choose your plan
eSIM in 3 steps for Thailand
Pick data amount and validity. Pay with card, Apple Pay, or Google Pay.
We email a QR code instantly. Scan it in Settings — installed in under 60 seconds. No app needed.
Your phone connects to local networks automatically when you arrive. No SIM swap, no kiosk. Hotspot included.
Coverage & connectivity.
Thailand has excellent 4G/LTE coverage in all major cities and tourist destinations. AIS operates the widest national network with 5G deployed in Bangkok and expanding to major provincial capitals. DTAC and True Move H provide competitive coverage and often better speeds in resort areas. Bangkok's BTS Skytrain, MRT subway, and expressways have full connectivity throughout. Phuket, Koh Samui, and Koh Phangan have reliable 4G in town centers and beach zones — ferry crossings between islands may have intermittent service on the water. Northern mountain regions around Chiang Rai and Pai have 4G in towns but may thin out in remote river valleys. Koh Tao and smaller islands typically have adequate LTE at resorts but weaker signals at offshore dive sites.
Questions about Thailand
Does the eSIM work in Phuket, Koh Samui, and Koh Tao?
Yes. All major Thai islands have 4G in resort and town areas. More remote parts of smaller islands may have weaker signals — perfectly normal for island destinations.
Will this work on Thai trains and the Bangkok BTS?
Yes. The Bangkok BTS Skytrain and MRT have full 4G coverage at stations and between above-ground stops. Long-distance State Railway trains have 4G in populated areas.
Are WhatsApp and LINE available in Thailand?
Yes. All messaging and VoIP apps work normally — WhatsApp, LINE, Facebook Messenger, FaceTime, and Zoom.
Do I need to register the eSIM with my passport?
No. As an eSIM, there is no physical registration process. Flysimio activates without any passport or ID submission on your part.
Is Thailand eSIM cheaper than buying at Suvarnabhumi airport?
Yes, substantially. Airport SIM vendors at Suvarnabhumi charge tourist-premium rates. Flysimio connects to the same AIS/DTAC network at significantly lower cost.
What is an eSIM?
An eSIM (embedded SIM) is a digital SIM built into your phone. Instead of a physical card, you scan a QR code and your plan installs instantly — no SIM tray needed.
Is my phone eSIM-compatible?
iPhone XS (2018) and newer, most Android flagships from 2020+, and all Samsung Galaxy S21+ devices support eSIM. Check our compatibility page for the full device list.
How do I install the eSIM?
After purchase, we email a QR code. On iPhone: Settings → Cellular → Add eSIM → Scan QR Code. On Android: Settings → Network & Internet → SIMs → Add eSIM. The whole process takes under 60 seconds.
Can I keep my regular SIM while using this eSIM?
Yes. Most phones support dual SIM (physical + eSIM). Keep your home number for calls and SMS — use Flysimio for data abroad. You control which SIM handles what in your phone Settings.
Does the eSIM include a hotspot (tethering)?
Yes, all Flysimio plans include mobile hotspot at no extra charge. Share your data connection with laptops, tablets, or other devices freely.
What happens when my data runs out?
You can top up data from your account dashboard at any time. Top-ups are applied instantly — no need to buy a new eSIM or wait.
Can I get a refund?
Yes. We offer a full refund within 14 days of purchase. Contact contact@flysimio.com with your order number.
How long is the eSIM valid for?
You have 6 months from your purchase date to activate the eSIM. Once activated, the plan validity period (e.g., 7 days, 30 days) begins counting down.
Will the eSIM work at the airport when I land?
Yes — as long as you installed the eSIM before your flight, it activates automatically when your phone connects to a local network on landing. No Wi-Fi required for activation.
What if the QR code doesn't scan?
If the QR code won't scan, you can enter the activation code manually — we include both in the email. You can also contact our 24/7 support team and we'll resend or manually provision your eSIM.
