Best eSIM for Koh Samui
Mobile data in Koh Samui, Thailand from $1.40, with instant QR code delivery and no roaming fees.
Instant
QR code by email
From $1.40
22 Thailand plans
4 networks
TrueMove H, DTAC, AIS
Secure
Stripe checkout
Why use an eSIM in Koh Samui?
A travel eSIM is the easiest way to get online in Koh Samui. Skip the airport SIM kiosk, roaming surcharges and swapping plastic SIM cards. Install your eSIM before you board, and when you land in Thailand you switch the line on and connect to a local network.
How to set up your Koh Samui eSIM
- Buy a Thailand eSIM from Teraroma.
- Receive the QR code by email.
- Scan it in your phone's mobile/cellular settings. Our eSIM install guide covers iPhone and Android.
- On arrival in Koh Samui, turn the eSIM line on and select it for mobile data.
Other cities in Thailand
FAQs about the Koh Samui eSIM
Will my eSIM work the moment I land in Koh Samui?
Install your Teraroma Thailand eSIM at home before you fly. The plan starts when your phone first connects to a local network in Thailand, as long as the eSIM line and data roaming are switched on.
Which networks does the Koh Samui eSIM use?
Our current Thailand plans connect to TrueMove H, DTAC, AIS, True Move. The network your phone picks depends on the plan and local signal.
Do I need a separate eSIM for other cities in Thailand?
No. Thailand plans are country-wide, so the same eSIM works in Koh Samui and anywhere else the local networks cover.
Can I keep my home number while using a Koh Samui eSIM?
Yes. Teraroma eSIMs are data-only and run alongside your home SIM, so calls and SMS to your usual number keep arriving.
What if I need more data while I'm in Koh Samui?
Top up your existing eSIM from the Teraroma top-up page. You don't need to install a new eSIM mid-trip.
