Quick answerBest overall: Airalo on True 5G, with fixed and unlimited data-only Thailand plans. Best budget: Saily, but use see live pricing. Best unlimited: Yesim, with unlimited data plans and a built-in VPN on plan pages. This guide compares hotspot and tethering rules, Thai number limits, and the Drimsim per-MB warning. Airalo review · Saily review · Yesim review · Drimsim review
You land in Bangkok, turn on your eSIM, and your phone works. Then you open your laptop and try to share the connection. Will it work? For many Thailand travel eSIMs, the answer depends less on the eSIM itself and more on the plan's tethering terms.
Airalo, Saily, Yesim and Drimsim are all data-only in Thailand. That means no Thai +66 number, no voice and no SMS. It also means your hotspot decision is about data allowance and plan rules, not about voice balances.
This guide compares hotspot and tethering rules for the main Thailand eSIMs, explains when a local Thai SIM or Thai carrier eSIM is better, and shows how to avoid the per-MB trap with Drimsim. Prices were verified October 2026; always check live plan terms before buying.
Our Top Picks at a Glance
- 1. Airalo — Best overall: True 5G data-only eSIM with fixed and unlimited Thailand plans.
- 2. Saily — Best budget: simple data-only eSIM with built-in ad blocker; see live pricing.
- 3. Yesim — Best unlimited: unlimited data plans with built-in VPN on plan pages; data-only in Thailand.
- 4. Drimsim — Pay-as-you-go warning: €10 eSIM and €0.01/MB in Thailand, expensive for hotspotting.
Quick Comparison Table
| Provider | Best For | Data | Validity | Network | Thai Number | Price | CTA |
|---|---|---|---|---|---|---|---|
| Airalo | Best overall | Fixed 1–10 GB or unlimited | 3–30 days | True 5G | No — data-only | From $4.00 fixed; unlimited from $9.50 | Check Airalo |
| Saily | Best budget | Data-only Thailand eSIM | Varies by plan | See live pricing | No — data-only | See live pricing | See Saily pricing |
| Yesim | Best unlimited | Unlimited data plans / pay-as-you-go | Varies by plan | See live pricing | No — data-only | See live pricing | Check Yesim |
| Drimsim | Pay-as-you-go backup | Pay per MB (~€10.24/GB) | No monthly fees | See live pricing | No — data-only | €10 eSIM + €0.01/MB | Check Drimsim |
Prices verified October 2026. Live prices may differ — verify at checkout.
How We Tested
Prices were verified on providers' sites on 2026-10-11, with the datestamp 'Prices verified October 2026'. We walked through checkout flows where possible, compared published plan terms, and named networks where providers name them. We do not claim speed tests or on-the-ground testing; always confirm hotspot, fair-use and device-limit terms on the live checkout page before buying.
In-Depth Reviews
1. Airalo — Best Overall
Airalo Thailand eSIM — True 5G, data-only, no Thai number. Fixed plans from $4.00; unlimited plans from $9.50. Prices verified October 2026.Airalo is the easiest all-round pick for most Thailand travelers who do not need a Thai phone number. Its Thailand plans are data-only, so there is no +66 number, no voice and no SMS. If your priority is maps, chat, email, ride-hailing apps that work with your home number, and general browsing, that is usually enough.
For hotspotting, Airalo's data-only setup means you are not juggling voice or SMS balances. Tethering still depends on the specific plan terms shown at checkout, so check the live plan page before you buy. If you plan to share data with a laptop, compare the fixed plans against the unlimited plans below and check any fair-use limits.
Airalo runs on True 5G for the Thailand eSIMs in this comparison. The fixed 5 GB / 30 days plan at $8.00 and 10 GB / 30 days at $11.00 are strong value for standard phone use. Unlimited plans start at $9.50 for 3 days and go to $49.00 for 30 days. Airalo offers a 14-day refund if unactivated and 30 days for technical issues.
| Plan | Price |
|---|---|
| 1 GB / 3 days | $4.00 |
| 3 GB / 7 days | $6.00 |
| 5 GB / 15 days | $7.50 |
| 5 GB / 30 days | $8.00 |
| 10 GB / 30 days | $11.00 |
| Unlimited 3 days | $9.50 |
| Unlimited 5 days | $15.00 |
| Unlimited 7 days | $21.00 |
| Unlimited 10 days | $31.00 |
| Unlimited 15 days | $39.00 |
| Unlimited 30 days | $49.00 |
Pros
- Runs on True 5G in Thailand.
- Clear fixed and unlimited pricing.
- 14-day refund if unactivated; 30 days for technical issues.
- Data-only setup avoids voice and SMS balance issues.
Cons
- No Thai number, voice or SMS.
- Hotspot and tethering terms are plan-specific — check before buying.
- Unlimited plans may have fair-use limits; check terms.
Check Airalo Thailand plans →
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2. Saily — Best Budget
Saily Thailand eSIM — data-only, no Thai number. Built-in ad blocker and simple app setup. Price: see live pricing.Saily is the budget-focused option in this comparison. We do not publish a numeric price for Saily because the verified fact set only gives live pricing. Always open the live plan page to see the current Thailand price and tethering terms.
Saily's Thailand eSIM is data-only, so it does not include a Thai number, voice or SMS. Verified features include a built-in ad blocker and simple app setup. If you plan to hotspot, confirm the plan allows tethering and check any device or fair-use limits at checkout.
Because the price moves, Saily is best treated as a value check rather than a fixed-price recommendation. Compare it against Airalo's fixed plans if you need a set budget, and against Yesim if you need unlimited data.
| Plan | Data | Validity | Price |
|---|---|---|---|
| Thailand eSIM | Data-only | Varies by plan | See live pricing |
Pros
- Budget-focused option; see live pricing.
- Built-in ad blocker.
- Simple app setup.
- Data-only, so no Thai number complications.
Cons
- No Thai number, voice or SMS.
- No numeric price in verified facts — see live pricing.
- Hotspot and fair-use terms must be checked on the live plan page.
See Saily live pricing →
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3. Yesim — Best Unlimited
Yesim Asia/Southeast Asia eSIM — data-only, no Thai number or SMS. Unlimited data plans, built-in VPN on plan pages, pay-as-you-go mobile plans. Price: see live pricing.Yesim is the best pick if you want an unlimited data plan in Thailand. Its Asia and Southeast Asia plans are data-only, so there is no local Thai number and no SMS. The verified feature set includes unlimited data plans, a built-in VPN on plan pages, and pay-as-you-go mobile plans.
If you want to hotspot, treat Yesim like any unlimited plan: check the live plan terms for tethering allowance, fair-use limits and device limits. Unlimited data does not automatically mean unlimited hotspot at full speed, so confirm the rules before you rely on it for a laptop.
Yesim's pricing is live-only in this fact set. Use the CTA to check current Asia/Southeast Asia plans and the tethering terms attached to each option. If you do not need unlimited data, Airalo's fixed plans are often cheaper for light phone use.
| Plan | Data | Validity | Price |
|---|---|---|---|
| Asia/Southeast Asia unlimited | Unlimited data | Varies by plan | See live pricing |
| Pay-as-you-go mobile plans | Varies | Varies | See live pricing |
Pros
- Unlimited data plans available.
- Built-in VPN on plan pages.
- Pay-as-you-go mobile plans.
- Data-only, no Thai number requirement.
Cons
- No Thai number, voice or SMS.
- Pricing is see live pricing only.
- Hotspot and fair-use terms vary by plan.
- Unlimited does not guarantee unrestricted tethering.
Check Yesim live pricing →
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4. Drimsim — Pay-as-you-go / Per-MB Warning
Drimsim eSIM — €10 SIM cost, Thailand mobile data €0.01/MB measured in KB (~€10.24/GB). Data-only, no Thai number. Works in ~190 countries.Drimsim is not a fixed Thailand data bundle. You pay €10 for the eSIM and then pay only for traffic you use. Thailand mobile data is €0.01/MB, measured in KB, which works out to about €10.24/GB. There are no monthly fees, and the single SIM works in roughly 190 countries.
That pay-as-you-go model is fine for a backup line or very light messaging. It is a bad fit for hotspotting a laptop, streaming video or letting cloud backups run. Every background update on a tethered device can burn through MB, and at €0.01/MB the cost adds up fast.
Drimsim is data-only in Thailand, so it does not include a Thai number, voice or SMS. If your device and plan allow tethering, monitor usage closely. For most hotspot users, a fixed or unlimited plan from Airalo or Yesim will be easier to control.
| Item | Price |
|---|---|
| eSIM cost | €10.00 |
| Thailand mobile data | €0.01/MB |
| Approx per GB | ~€10.24/GB |
| Monthly fees | None |
| Coverage | ~190 countries |
Pros
- Pay only for traffic used.
- No monthly fees.
- Single SIM works worldwide (~190 countries).
- Data-only, no Thai number.
Cons
- Per-MB pricing makes hotspotting expensive.
- No Thai number, voice or SMS.
- Must monitor usage closely.
- Not a replacement for an unlimited hotspot plan.
Check Drimsim Thailand rates →
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How Much Data Do You Need in Thailand?
Use this as a planning rule of thumb, then check live plan sizes and tethering terms. Hotspotting a laptop usually pushes you one tier higher than phone-only use.
Light phone use
Maps, chat, email and occasional social media: 1–3 GB per week is often enough if you use hotel or cafe Wi-Fi for video. Airalo's 1 GB / 3 days at $4.00 or 3 GB / 7 days at $6.00 are examples of small fixed plans.
Standard tourist use
Maps, social media, photo uploads and some video: 3–5 GB per week is a reasonable starting point. Airalo's 5 GB / 15 days at $7.50 or 5 GB / 30 days at $8.00 can cover lighter trips.
Heavy use or laptop tethering
Remote work, video calls, cloud backups or laptop tethering: 10 GB+ per 30 days or an unlimited plan. Airalo's 10 GB / 30 days is $11.00 and unlimited 30 days is $49.00. Yesim has unlimited plans at see live pricing. Drimsim's ~€10.24/GB rate makes heavy tethering costly.
eSIM vs Local Thai SIM Card
The right choice depends on whether you need a Thai phone number and how long you are staying. A data-only travel eSIM is usually faster to set up; a local Thai SIM or Thai carrier eSIM is better when you need +66 calls or SMS.
When a travel eSIM wins
You want data on arrival without a passport queue. You mainly use maps, chat, email and apps that work with your home number. You do not need a Thai +66 number for calls or SMS. Airalo, Saily, Yesim and Drimsim are all data-only in Thailand, so they fit this use case.
When a local Thai SIM wins
You need a Thai number for local calls, SMS, deliveries or account verification. You are staying long enough that a local plan makes sense. Thai carrier eSIMs like True via thailandesim.com give you a real +66 number, but they install only once in Thailand. Outgoing calls and SMS require in-store passport KYC. Some Gigago Thailand plans also include a Thai number on 7, 8 and 10-day plans, while the 1-day plan is data-only.
Thailand-Specific Tethering, Coverage and Install Notes
Thailand's mobile market is served by AIS, DTAC and TrueMove H. Tourist eSIMs in this comparison run on True 5G where the provider names the network. Coverage is broad in Bangkok, Phuket and Chiang Mai, but always check your specific plan.
Airport install
Bangkok has two main airports: Suvarnabhumi (BKK) and Don Mueang (DMK). Phuket (HKT) and Chiang Mai (CNX) are other common arrival points. For data-only travel eSIMs, follow the provider's install instructions before or after arrival. For Thai carrier eSIMs like True via thailandesim.com, install only once in Thailand; do not activate them before you land.
Coverage
AIS, DTAC and TrueMove H are the three main networks. Airalo's Thailand eSIM runs on True 5G. Saily, Yesim and Drimsim network details are live-plan-specific in this fact set, so check live pricing for the network named at checkout.
Tethering fine print
Hotspot and tethering are usually governed by the plan's terms, not by the eSIM format itself. Check for hotspot allowance, fair-use limits, speed reductions and device limits. Drimsim charges €0.01/MB measured in KB (~€10.24/GB), so tethering a laptop can be expensive. Saily pricing is live-only — see live pricing. For Thai carrier eSIMs, outgoing calls and SMS require in-store passport KYC.
How to Choose by Trip Length
Protect your tethered connection
Tethering on hotel or cafe Wi-Fi still exposes your laptop to public-network risks. A VPN adds a private tunnel for banking, work and bookings. Compare Thailand VPN options before you go.
Final Verdict
For most Thailand travelers, Airalo is the best overall hotspot-friendly starting point: data-only, True 5G, clear fixed and unlimited pricing, and no Thai number complications. Saily is the budget check, but you must see live pricing. Yesim is the best unlimited option if you confirm its tethering and fair-use terms. Drimsim is a useful backup eSIM, but the €0.01/MB rate (~€10.24/GB) makes it a poor choice for hotspotting a laptop.
The real hotspot answer is plan-specific. Airalo, Saily and Yesim are data-only eSIMs, but tethering depends on the live plan terms. Check the plan page before you buy, especially for unlimited plans. If you need a Thai +66 number, skip data-only eSIMs and look at Thai carrier options instead. Prices verified October 2026.