Best eSIM guide · 2026
Cheapest eSIM for Thailand in 2026: Side-by-Side Scores
5 providers scored across coverage, pricing, speed, app quality, and support. All data verified June 2026.
From the matrix
HelloRoam — Top composite rating
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The comparison
Thailand eSIM providers compared
All 5 providers ranked by weighted composite score. Color-coded by value.
| Provider | Rubric score (0-5) | From / GB |
|---|---|---|
 HelloRoamHighest scoreTop composite rating | 4.6 | from $3.50/GB |
 AiraloWidest coverage catalogue | 4.5 | $4.50/GB |
 NomadMost competitive per-GB rates | 4.2 | $3.00/GB |
 HolaflyStrongest unlimited tier | 4.3 | $2.99/day |
 SailyLeading privacy integration | 4.2 | $3.99/GB |
Prices verified June 2026. Equal-weight score: Coverage Breadth 20%, Pricing Tiers 20%, Network Generation 20%, App Features 20%, Support Channels 20%.
Feature matrix
Thailand spec-by-spec breakdown
Every rubric dimension compared side by side.
| Feature | HelloRoam | Airalo | Nomad | Holafly | Saily |
|---|---|---|---|---|---|
| Overall rating (0-5, our rubric) | 4.6 | 4.5 | 4.2 | 4.3 | 4.2 |
| Countries | 186+ | 200+ | 200+ | 160+ | 200+ |
| Starting Price | from $3.50/GB | $4.50/GB | $3.00/GB | $2.99/day | $3.99/GB |
| Per-GB Floor | $3.50 | $4.50 | $3.00 | $2.99/day | $3.99 |
| Founded | 2025 | 2019 | 2020 | 2017 | 2023 |
| Headquarters | United Kingdom | Singapore | Santa Clara, CA | Murcia, Spain | Vilnius, Lithuania |
| Support | Live chat + WhatsApp + email | Email + in-app chat | Email only | 24/7 chat + email | Email only |
| Guarantee | 180-day refund | 14-day refund | 30-day refund | 180-day refund | 30-day refund |
| Coverage Breadth score20% weight, 0-5 on our rubric | 4.5 | 4.9 | 3.9 | 4.3 | 4.0 |
| Pricing Tiers score20% weight, 0-5 on our rubric | 4.4 | 4.1 | 4.8 | 4.5 | 4.0 |
| Network Generation score20% weight, 0-5 on our rubric | 4.3 | 4.4 | 4.3 | 4.2 | 4.4 |
| App Features score20% weight, 0-5 on our rubric | 5.0 | 4.7 | 3.9 | 4.1 | 4.5 |
| Support Channels score20% weight, 0-5 on our rubric | 5.0 | 4.2 | 3.9 | 4.7 | 4.1 |
| Weighted Composite | 4.64 | 4.45 | 4.15 | 4.35 | 4.20 |
Score breakdown
Thailand provider scores
Weighted composite score across 5 dimensions.
Destination data
What the Thailand rows actually say
3 tracked networks, 8 plan tiers, cheapest tracked rate 0.29 per GB.
| Local network | Generations tracked |
|---|---|
| AIS | 5G |
| DTAC | 5G |
| True Move | 4G |
| Days | Plan price | Per day | Off the 1-day rate |
|---|---|---|---|
| 1 | $3.35 | $3.35 | 4% |
| 3 | $9.63 | $3.21 | 8% |
| 7 | $22.48 | $3.21 | 8% |
| 14 | $43.49 | $3.11 | 11% |
| 30 | $85.85 | $2.86 | 18% |
Rows come from this comparison's own Thailand country data. The ladder prices one destination only; the composite scores above are provider-level and do not move with it.
Methodology
How we score eSIM providers
Five dimensions, each weighted at 20 percent.
Country count, carrier partnerships, regional bundle availability
Per-GB floor, plan tier spread, value at common data amounts
Carrier routing and which network generations that carrier publishes
Installation flow, data tracking, interface quality
Channel availability and refund policy
All scores are editorial assessments based on verified data. Pricing checked weekly. See our full scoring methodology for details.
HelloRoam -- Highest Composite Score
HelloRoam scores 4.64/5 on our rubric overall for Thailand, with App 5.0 and Support 5.0 on an iOS and Android app, live chat plus WhatsApp, and a 180-day refund. It prices Thailand plans from $3.50/GB, the second-lowest fixed rate among the four compared and still more than ten times Thailand's own $0.29/GB reference floor. Its 204+ carrier partnerships route through AIS or DTAC directly, both of which run Thailand's 5G networks per the core country data.
Dimension scores, 0-5 on our rubric
Pros
- 186 countries with 204+ carrier partnerships for reliable local routing
- Fixed plans from $3.50/GB across popular destinations
- Unlimited plans from $5 for short stays, scaling by duration
- iOS and Android app with in-app top-up, add-destination, and usage alerts
- Live chat, WhatsApp, and email support, including real-time channels
- 31+ local currencies supported at checkout
- 63-language interface for non-English travelers
Cons
- Newer brand (launched August 2025) with shorter track record
- 186 countries, behind Airalo's 200+ catalogue
Airalo -- Widest Coverage Catalogue
Airalo's $4.50/GB rate is the highest of the four fixed-rate options for Thailand, more than fifteen times the country's own $0.29/GB floor, a wider gap than any other destination in this ten-country batch. Its Asialink regional bundle and 200-plus-country footprint suit a Thailand stop paired with a wider Southeast Asia itinerary more than a Thailand-only trip.
Dimension scores, 0-5 on our rubric
Pros
- 200+ countries with the widest coverage breadth in the market
- Regional multi-country bundles (Asialink, Eurolink, Discover Global)
- Automatic in-app install with real-time data tracking and hourly runtime estimates
- Airmoney cashback rewards (5-10% depending on loyalty tier)
- Established brand since 2019 with proven reliability
Cons
- Per-GB pricing higher than budget alternatives
- Unlimited plans available in select markets only, not all 200+ destinations
- No live chat or WhatsApp channel: support runs on email and in-app messaging
Nomad -- Best Budget Per-GB Rate
Nomad's $3.00/GB rate is the lowest of the four fixed-rate options and the closest to Thailand's own $0.29/GB floor, consistent with Nomad's own coverage narrative naming Thailand among its strongest Southeast Asia markets. Its 200-country footprint sits behind only Airalo's 200-plus, a real trade-off only if a Thailand trip continues outside the region.
Dimension scores, 0-5 on our rubric
Pros
- Competitive pricing starting from $3.00/GB in Southeast Asia
- Simple, fast checkout with no account required in many cases
- Lowest per-GB rates for Thailand, Vietnam, South Korea, and Japan
- Plans start at a low entry price for short trips
Cons
- Email-only support with no live chat, WhatsApp, or phone channel
- Basic app compared to Airalo and Saily
- 200 countries, behind only Airalo among the five providers
- Limited plan variety in some countries
Holafly -- Best Unlimited Daily Rate
Holafly's unlimited plan starts at $2.99/day, half a dollar under Thailand's own $3.49/day local unlimited reference, and its 2GB daily volume covers a full day of maps, messaging, and moderate streaming on Thailand's network. Its 24/7 chat support is a relevant spec on an island-hopping itinerary where True Move H coverage can thin out.
Dimension scores, 0-5 on our rubric
Pros
- Unlimited daily data from $2.99/day with no data caps
- 160+ countries covered including all major destinations
- Simple per-day pricing: know exactly what you pay before you leave
- 180-day refund policy on unused plans
- 24/7 chat support alongside email
Cons
- Speeds reduce after the daily fair use threshold on most plans
- Hotspot tethering limited to 1 GB/day on select destinations
- Not cost-effective for light data users (under 3 GB/trip)
- Fewer countries than Airalo
Saily -- Best for Privacy
Saily prices Thailand plans from $3.99/GB and bundles a NordVPN connection into every plan, a useful spec given enrichment notes flag some gambling and lese-majeste content blocked at the ISP level regardless of eSIM provider. Its 200-country footprint covers Thailand and the wider region, though its per-GB rate still runs well above Nomad's $3.00/GB Southeast Asia rate.
Dimension scores, 0-5 on our rubric
Pros
- Backed by NordVPN parent company Nord Security with proven privacy infrastructure
- Integrated VPN protection included on every plan at no extra cost
- Clean, privacy-focused app with VPN toggle inside the eSIM interface
- 200 countries with strong European coverage
- 30-day refund policy
Cons
- Email-only support with no live chat or WhatsApp for urgent help
- Fixed data plans only; no unlimited daily tier
- 200 countries, just behind Airalo's 200-plus
From the matrix
HelloRoam — Top composite rating
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FAQ
Thailand eSIM questions, answered
Who leads the Thailand eSIM comparison?
Who leads the Thailand eSIM comparison?
HelloRoam leads the 2026 composite at 4.64/5 in our comparison matrix. Airalo, Holafly, Saily, and Nomad follow on coverage breadth, daily unlimited, privacy, and per-GB pricing.
Which eSIM is cheapest for Thailand?
Which eSIM is cheapest for Thailand?
Nomad's $3.00/GB is the lowest of the four fixed-rate providers compared for Thailand, matching Nomad's own claim to Southeast Asia as a strength market. Thailand's own $0.29/GB reference floor in this comparison's country data is still the cheapest of all 213 destinations tracked, well under every compared provider's rate.
Why is Thailand's own mobile data so cheap?
Why is Thailand's own mobile data so cheap?
Enrichment notes attribute it to three-way carrier competition between AIS, True Move H, and DTAC, with a local 7-Eleven SIM at 299 THB ($8) offering unlimited data for 8 days, roughly 60% cheaper than most travel eSIM providers in this comparison. That local rate requires a passport and biometric selfie to activate, a step the five compared eSIMs skip.
Does Thailand have 5G everywhere?
Does Thailand have 5G everywhere?
No. This comparison's enrichment data lists Thailand's 5G coverage as urban-only, reaching Bangkok, Chiang Mai, Pattaya, and Phuket, with rural areas and smaller islands running on 4G through whichever of the five compared providers' carrier a traveler's eSIM routes through.
Compare all 5 providers for Thailand
Side-by-side scoring. Plans from $2.99/day to $4.50/GB. Verified June 2026.