Best Mobile Network in Phuket for Tourists: SIM Cards & eSim

Phuket runs on the same two networks as the rest of Thailand, AIS and True Corporation (which absorbed dtac in March 2023), both with solid 4G and 5G coverage across the island's tourist areas. Here's a real breakdown of which network to pick, where to buy a SIM and whether an eSIM makes more sense for your trip.

Which network is best in Phuket

AIS specifically leads Phuket's network performance testing, scoring 118.84 in speed and offering the widest 5G coverage at 72.8%. True Corporation performs competitively too, particularly excelling in video streaming quality, while also offering some of the more attractive unlimited data packages for tourists. Both networks deliver excellent 4G and 5G coverage across Phuket's main tourist areas. The practical difference between them is small for most travellers.

Where to buy a physical SIM

Genuinely cheaper for the same or similar data allowance

• Airport counters (AIS, dtac, True stands): tourist tariffs run 350 to 1,200 THB, passport required
• 7-Eleven stores: cheaper, from 49 THB for an empty SIM or 199 THB with internet included for 30 days
• Central Festival and Jungceylon shopping malls: dedicated mobile communication counters

Physical SIM prices by network

eSIM options worth considering

Skip the airport queue entirely

If your phone supports eSIM, it skips the airport queue entirely and connects the moment you land. A few real, well-reviewed options:

• Saily: from $2.99 for 1GB over 7 days, runs primarily on TrueMove H with AIS as a secondary network
• eSIM4: from $2.98 for 1GB over 7 days (discounted from $7.20), unlimited plans from $9.98 for 3 days, on the AIS network
• SimOptions (dtac Happy Tourist eSIM): around $9.90 for unlimited data over 10 days, includes a Thai phone number for calls and SMS, connects directly to the merged dtac and True network
• Nomad: a strong pick if you want a large fixed data package, around 50GB for roughly $12

An honest note on conflicting eSIM rankings

The right pick depends on what matters most for your trip

Sourced from gigago.com's best Thailand SIM cards for tourists guide, techradar.com's best eSIM for Thailand 2026, thaiholidayguide.com's best eSIM for Thailand 2026 guide, esim4.com's Phuket eSIM best plans from 8 providers 2026, traveltomtom.net's best prepaid SIM card for Thailand 2026 guide, traveltomtom.net's best eSIM for Thailand 2026 guide, thailandesim.com's SIM card and eSIM in Phuket 2026 guide, phuket-insider.com's where to buy a SIM card in Phuket guide and simpackers.com's best eSIM for Phuket 2026.

Practical tips

Choose AIS specifically if raw network speed and 5G coverage matter most to you, it consistently leads Phuket's performance testing.

Buy your SIM at 7-Eleven rather than the airport counter if budget is a priority, it's noticeably cheaper for the same or similar data allowance.

Set up your eSIM before you fly if your phone supports it, this lets you skip the airport queue and connect the moment you land.

Pick SimOptions' dtac Happy Tourist eSIM specifically if you need a Thai phone number for calls and SMS alongside your data, not every eSIM includes this.

Common mistakes to avoid

• Assuming the airport counter is your only option for a physical SIM, 7-Eleven and shopping mall counters both offer the same networks at lower prices.
• Buying an eSIM with a data-only plan when you actually need a local phone number for bookings or verification codes, check this specific detail before purchasing.
• Trusting a single "best eSIM" ranking without checking what it's actually optimising for, value per gigabyte, simplicity and unlimited data all lead to different top picks depending on the source.
• Overpaying for unlimited data if you're only a light user, several sources specifically note that a fixed data package is often better value unless you truly need unlimited access.