Last updated: October 23, 2026

Best SIM Card for 1 Month in Thailand (2026): Airport, 7-Eleven or eSIM?

Compare 30-day prices SIM or eSIM?
In this comparison

 

For a month in Thailand, Travelsim Asia’s 10 GB / 30-day eSIM costs $9.99; lighter users can choose 5 GB / 30 days for $7.89. Both support top-ups on the same eSIM. If you need 20 GB, Airalo’s 30-day plan costs $18 against our $19.99. A local SIM is worth comparing if you also need a Thai phone number.

Buying a SIM in Thailand? Compare local options below, including the complete cost for 30 days, data limits and a Thai number.

Compare local SIM options

Prefer to arrange your data before arrival? If your phone supports eSIM and you do not need a local number, our 10 GB / 30-day plan costs $9.99. Match the allowance to your full trip.

View Thailand eSIM plans

This guide compares one-off eSIMs, airport kiosks, convenience-store SIMs and subscriptions. Local-carrier offers are dated 8 October 2026; the other travel-eSIM comparison uses our 10 October snapshot. Subscription examples retain their August source date. We sell eSIMs ourselves and explain when a local SIM is the better fit.

Quick answer: choosing data for 30 days in Thailand

  • Arrange data before travel: our 10 GB / 30-day eSIM is $9.99; 5 GB / 30 days is $7.89.
  • Consider a local deal: True’s 7-Eleven offer below can be better value if you qualify and can buy it locally.
  • Need unlimited data and local calls? Compare the AIS and True tourist packages below.
  • Staying longer? Check renewal terms as well as the first month’s price.

Thailand SIM card prices for 1 month: physical SIM vs eSIM

These options cover 30 days on their stated terms. Prices stay in the seller’s currency; compare the data and calls as well as the total.

Compare 30-day prices

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Option Total for 30 days Data / speed Thai number / calls
AIS or True tourist SIM ฿1,199 package; no extra data add-on required Unlimited at maximum available speed; carrier terms apply Yes; call allowances differ below
True 7-Eleven SIM, if eligible ฿199 starter package; no required first-month add-on 30 GB at up to 15 Mbps, then up to 384 Kbps Yes; local calls up to 15 minutes each
Travelsim Asia 10 GB $9.99 total 10 GB / 30 days; hotspot supported Data only; no Thai number
Travelsim Asia 5 GB $7.89 total 5 GB / 30 days; hotspot supported Data only; no Thai number

Local package sources: AIS, True tourist SIM and True 7-Eleven terms, 8 October 2026. The 7-Eleven offer is conditional on stock and registration eligibility; confirm before paying.

Our 10 GB plan: $9.99 covers 30 days from first connection in Thailand. Hotspot uses the same fixed allowance. It is not unlimited; budget for paid extra data if 10 GB is insufficient. No standard calls or SMS are included. View Thailand eSIM plans.

Choose by what you need: a local SIM can offer more data and calls for your money. Our eSIM suits a compatible, unlocked phone when you want to arrange a fixed data allowance before travel. An unlimited local package and a 10 GB eSIM are different products, even when both last 30 days.

Airport SIM card prices: AIS, TrueMove H, dtac (2026)

AIS and True/dtac sell tourist packages through carrier shops and airport outlets. Check the exact package at the counter: an airport location alone does not establish a price premium.

AIS tourist SIM packages at the airport

AIS airport plans

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Validity Data Package price Calls
8 days Unlimited, maximum available speed ฿499 AIS calls included; ฿100 call credit
15 days Unlimited, maximum available speed ฿699 AIS calls included; ฿100 call credit
30 days Unlimited, maximum available speed ฿1,199 AIS calls included; ฿100 call credit

Plan terms: AIS lists these Lucky Tourist packages with 5G/4G access, calls within AIS and call credit. The 30-day package covers the month without a required add-on. Maximum available speed is not a guarantee of a particular speed at your hotel or destination.

TrueMove H / dtac tourist SIM at the airport

True and dtac are brands of True Corporation. Check the chosen brand’s package terms and local-call allowance.

TrueMove H / dtac airport plans

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Validity Data Package price Calls
8 days Unlimited, maximum available speed ฿499 Local calls up to 15 minutes each
15 days Unlimited, maximum available speed ฿699 Local calls up to 15 minutes each
30 days Unlimited, maximum available speed ฿1,199 Local calls up to 15 minutes each

Plan terms: True’s Tourist Infinite terms list unlimited data, with speed dependent on coverage, congestion and device. Network-protection restrictions apply; the page does not specify a routine daily GB throttle for these packages. Register with a valid passport. Calls beyond the included per-call limit cost extra.

7-Eleven and in-city SIM card prices for 1 month

A local SIM is worth considering for a Thai number and a lower-cost data bundle. True’s 7-Eleven offer is ฿199 including VAT for the first 30 days: the starter package includes the data, so no additional monthly data purchase is required.

In-city SIM prices

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Local option Complete first-month cost What to check
True 7-Eleven 30-day offer ฿199 package + ฿0 required add-on 30 GB at 15 Mbps, then 384 Kbps; local calls up to 15 minutes each
AIS Lucky Tourist, 30 days ฿1,199 package + ฿0 required add-on Unlimited data; AIS calls and call credit
True Tourist Infinite, 30 days ฿1,199 package + ฿0 required add-on Unlimited data; local calls up to 15 minutes each
A shorter starter pack with add-ons Ask for the full itemised total Starter price + every package needed through day 30; credit alone is not a data bundle

Before paying: confirm that the shop stocks the exact package and can register it with your passport. True’s 7-Eleven promotion page does not explicitly confirm foreign-passport eligibility, so do not assume every visitor or branch can supply it. Ask staff to confirm the active allowance and expiry. Its package renews at ฿199 per 30-day cycle when funded; review renewal settings if you only need one month. Local calls beyond the included limit and other out-of-bundle services cost extra.

Prefer an eSIM instead? Compare Thailand eSIM prices and allowances.

Which eSIM to buy for a month in Thailand

Travelsim Asia’s 10 GB / 30-day plan at $9.99 is a practical choice if that allowance fits your month and you want data arranged before travel. Use Wi-Fi for large downloads or choose more data for frequent tethering and video. A local SIM may be better value if you need a Thai number or a larger allowance.

For light use, our 5 GB / 30-day plan costs $7.89. In the 10 October travel-eSIM comparison, Airalo costs less at 20 GB and 50 GB; compare those options if you need more data.

  • Saily. $7.99 for 5 GB and $10.99 for 10 GB over 30 days: $0.10 and $1.00 more than our corresponding plans.
  • Nomad. $8.00 for 5 GB and $10.00 for 10 GB over 30 days. Close on price at both allowances.
  • Airalo. $11.00 for 10 GB, but $18.00 for 20 GB and $27.50 for 50 GB. If you are a heavy user staying a month, this is the cheaper buy and we would rather say so.
  • Ubigi. $11.00 for 10 GB. Its monthly subscription is a different proposition and is covered further down.
  • Holafly. $73.90 total for 30 days of unlimited data. Compare its fair-use and hotspot terms with the local unlimited packages, as well as the convenience of arranging an eSIM before travel.

Every provider and tier side by side sits in our Thailand eSIM price guide, and if unlimited is what you are weighing up, our unlimited Thailand eSIM breakdown works through the fair-use terms provider by provider.

Should you buy a physical SIM or an eSIM for 1 month in Thailand?

The honest answer depends on three things: whether your phone supports eSIM, whether you need a Thai phone number, and how much data you actually use.

Physical SIM or eSIM

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Decision Local physical SIM Travelsim Asia 30-day eSIM
Package examples ฿199 True 7-Eleven offer if eligible; ฿1,199 tourist packages $7.89 / 5 GB or $9.99 / 10 GB
Setup Buy and complete registration locally Install using Wi-Fi before travel; connect in Thailand
Thai number / calls Included with the named local packages No; data only
Registration Bring your passport; verify package eligibility No passport upload in our purchase flow
Home SIM May need a spare SIM slot to keep both active Can run alongside your home SIM on supported phones
Extra data Buy an eligible data package; check expiry separately Paid top-ups through your dashboard
Compatibility Unlocked phone with a suitable SIM slot and network support Unlocked, eSIM-compatible phone

Pick a physical SIM if: You need a Thai phone number for verifications, calls to local businesses, or rental contracts (motorbike, apartment). Or your phone doesn't support eSIM. Or you specifically want unlimited data and don't mind paying ฿1,199 for it.

Pick an eSIM if: you need mobile data, your phone supports it, and you prefer to arrange it before travel. Keep your home SIM for your existing number; any calls or texts on that SIM follow your home carrier’s rates.

Long-stay specifics: things 1-month travelers ask

What if my data runs out before 30 days?

On a physical SIM: check the active package before adding credit. Ask the carrier or shop which data add-on applies to your SIM, what it costs and when it expires. Topping up credit and activating a data package are separate steps.

On our 5 GB, 10 GB and 20 GB plans: buy extra data through your eSIM dashboard if needed. Check the available top-up’s price, allowance and validity before paying. Our 50 GB / 10-day product is a separate plan without top-up support.

What if my trip extends past 30 days?

30-day validity is calendar-based, not data-based — meaning your plan expires after 30 days even if you have data left. If your trip slips by a few days:

  • Check a top-up’s quoted validity and cost, rather than assuming it extends the original plan by a month
  • Install a fresh eSIM as a second profile
  • For longer stays, compare a recurring plan’s full commitment and cancellation terms

Can I activate the eSIM before my trip starts?

For our 5 GB, 10 GB and 20 GB plans: you can install before travel using Wi-Fi; validity starts on first connection in Thailand. Our 50 GB / 10-day plan starts on installation. Other providers have their own start rules, so check the exact plan.

Is it cheaper to buy a SIM card in Thailand or before I go?

A local offer can be cheaper if you qualify for it and can buy it where you are staying. Compare the full package and registration terms, not just the starter price. Buying our eSIM before travel is a choice for convenience and a fixed data allowance, not a guarantee of the lowest local price.

How much is a SIM card in Thailand for 30 days?

The examples here range from the conditional ฿199 local offer to ฿1,199 tourist packages. Our 30-day data plans include 5 GB for $7.89 and 10 GB for $9.99. The local packages and eSIMs differ in allowance, speed terms and calls.

Long-stay digital nomads: consider Ubigi's monthly subscriptions

If you're staying in Thailand longer than 30 days — or you're a digital nomad cycling between Asian countries — Ubigi's monthly subscription plans deserve a closer look. They work differently from one-shot eSIM plans:

  • Auto-renewal: the August examples are $8/month for 5 GB and $19/month for 20 GB. Check current pricing, minimum commitment and cancellation terms directly with Ubigi.
  • No re-installation: Same eSIM profile, same activation, just a recurring data refill. Saves the hassle of buying and installing a new eSIM each month.
  • Network coverage: check the network listed on the exact subscription; do not infer it from another Ubigi package.
  • Compare the billing model: the August subscription example of $19 for 20 GB sits above Airalo’s $18 one-off price and below our $19.99, using the 6 November comparison. Confirm the current subscription price and cancellation terms before signing up.

For repeat trips, compare an annual or recurring plan’s monthly allowance and minimum commitment with buying data only when you travel. A low monthly equivalent is useful only if you use the included allowance across those months.

Travelsim Asia for 1-month Thailand stays

This is our product, so take this section with that in mind. We've tried to be factual about both strengths and limitations.

Strengths for 1-month travelers: 10 GB / 30 days for $9.99, with AIS and True Corporation network access (DTAC / TrueMove H). No app or account required to buy and install from email. Hotspot is supported and uses your allowance; paid top-ups are available through the dashboard.

Where we fall short for some 1-month travelers: these are fixed-data plans without a Thai number or standard calls/SMS. We do not offer unlimited data or a monthly subscription. Compare a local package for calls or heavy use, and compare larger travel-eSIM allowances rather than assuming our 10 GB plan will fit.

Thailand eSIM plans

10 GB / 30 days for $9.99. Data only, with hotspot support and paid top-ups. Choose the allowance that fits your month.

View Thailand eSIM plans

Dig deeper

One-month-specific guidance is useful, but the rest of the decision matrix matters too: