Thailand eSIM – Instant Mobile Data for Travellers
Instant mobile data in Thailand from £4.99. No roaming charges. Keep your UK number. Activates the moment you land.
Thailand is one of the most popular destinations for UK travellers, and staying connected is essential for navigating Bangkok's streets, booking island-hopping tours, and sharing your adventures. TripSIM provides instant eSIM activation for Thailand with reliable 4G/5G coverage across the country.
Thailand mobile networks
- AIS — 4G/5G
- DTAC — 4G
- TrueMove H — 4G/5G
How it works
- Buy your plan in GBP at our UK Stripe checkout.
- Scan the QR code we email you within minutes.
- Land in Bangkok and connect automatically.
Thailand eSIM FAQs
Does an eSIM work in Thailand?
Yes — TripSIM eSIMs work across Thailand on local 4G/5G networks (AIS, DTAC, TrueMove H). You activate before you fly and it connects automatically when you land.
Can I keep my UK number while using a Thailand eSIM?
Yes. Your physical UK SIM stays active for calls, texts and WhatsApp. The TripSIM eSIM runs alongside it as a data-only line.
Is hotspot / tethering included?
Yes, every TripSIM plan supports personal hotspot.
When should I install the eSIM?
Install before you leave the UK while on WiFi. Activation only starts when you connect to a local network in Thailand.
Is TripSIM cheaper than UK carrier roaming in Thailand?
Almost always. UK carriers typically charge £6–£10 per MB with UK carriers in Thailand. Save up to 90% compared to UK roaming in Thailand.
Does TripSIM work on Thai islands like Koh Samui and Koh Phi Phi?
Yes, TripSIM provides coverage on most Thai islands through AIS and TrueMove H networks. Remote beaches may have limited signal, but main tourist areas have good 4G coverage.
Can I use Grab with my TripSIM eSIM in Thailand?
Yes, Grab works perfectly with TripSIM data. Grab is essential for getting around Bangkok, Phuket, and other Thai cities safely and affordably.
How much data do I need for 2 weeks in Thailand?
For typical tourist usage, 1–1.5 GB per day covers maps, social media, messaging, and occasional video calls. We recommend 15–20 GB for a 2-week trip.
Is 5G available in Thailand?
Yes, AIS and TrueMove H offer 5G in Bangkok and major cities. TripSIM connects to 5G networks where available.