Best eSIM for Thailand Malaysia Singapore and Indonesia
Find the best-fit eSIM for Thailand Malaysia Singapore and Indonesia. Simple filters, clear comparisons, faster decisions.
eSIM plans for Thailand Malaysia Singapore Indonesia
Compare 1762 live offers from 15 providers. Prices update every 12 hours.
Is There a Single eSIM for Thailand, Malaysia, Singapore, and Indonesia?
A Thailand Malaysia Singapore Indonesia eSIM is one profile covering all four countries, and the exact-match vs best-value bundle check has a twist: iRoamly sells the exact 4-country match, but an Asimgo 5-country bundle adding Vietnam costs less per day. This page runs the single-country vs combo eSIM math, maps the 4-country Southeast Asia eSIM field, and flags every Southeast Asia bundle without Indonesia.
Which eSIM providers cover Thailand, Malaysia, Singapore, and Indonesia?
Several established eSIM brands sell eSIM plans across the region, though exact country counts and network partners vary by provider. Compare current pricing and data allowances below.
Best Thailand, Malaysia, Singapore, and Indonesia eSIM Options, Ranked by Price
Two bundle families cover all four target countries, plus a 3-country family that does not. Ranked by price:
- Asimgo, Southeast Asia – 5 Countries: $0.55 per day, unlimited data, the cheapest confirmed option on the board. The country list covers Thailand, Malaysia, Singapore, and Indonesia and adds Vietnam as a fifth, which is exactly why the price undercuts the narrower bundles. The 30-day tier costs $49.18 for a month of unlimited data, about $1.64 per day.
- iRoamly, Southeast Asia – 4 Countries: $2.50 per day, unlimited data, the only exact match for Thailand, Malaysia, Singapore, and Indonesia in the current pull. The 30-day tier costs $90.50, about $3.02 per day, so the exact match stays the premium option at every duration. iRoamly’s match also confirms the exact-match market exists, useful context even though the price disqualifies it as the top pick.
The two prices define this page’s decision: $0.55 against $2.50 per day is a fivefold spread for the same four core countries, and both carry unlimited data, so data volume explains none of the gap.
Flagged separately rather than ranked, because none of the three satisfies this page’s core query:
- Asimgo, Singapore-Malaysia-Thailand: $0.56 per day, no Indonesia.
- iRoamly, Singapore-Malaysia-Thailand: $2 per day, no Indonesia.
- Nomad, Singapore-Malaysia-Thailand: $4 for 7 days, no Indonesia.
These 3-country plans matter only if Indonesia drops off the itinerary, at which point Asimgo’s entry is the pick of that trio, one cent per day above the 5-country plan that beats it on coverage. Device support decides whether any of these plans will load, so run the compatibility check next.
How Much Do You Save Versus Buying Each Country Separately?
Buying separately means four QR codes and four bills. The cheapest single-country Thailand plan is Yesim at $0.45 per day with capped data. The cheapest single-country Malaysia plan is Asimgo at $0.35 per day, unlimited. The cheapest single-country Singapore plan is Yesim at $0.45 per day, capped, and the cheapest single-country Indonesia plan is Yesim at $0.45 per day, capped. Capped plans stop at their allowance; unlimited plans keep running. The combined cost of 4 separate profiles is $1.70 per day, while the single Asimgo 5-country bundle costs $0.55 per day, a saving of $1.15 per day, roughly 68%, and one eSIM profile to manage instead of four. The next check is whether the regional name on a bundle guarantees Indonesia is covered.
Do All "Southeast Asia" Bundles Actually Include Indonesia?
Regional branding is not a country list. Asimgo’s Singapore-Malaysia-Thailand bundle, iRoamly’s Singapore-Malaysia-Thailand bundle, and Nomad’s Singapore-Malaysia-Thailand bundle share one attribute: Indonesia included? No. Indonesia is confirmed absent from all 3 of these specific bundles despite the Southeast Asia-adjacent naming. The 3-country price tags look tempting beside 4-country products, which is why the gap goes unnoticed. The country list is the only place the omission shows up. For readers who assume any Southeast Asia bundle covers Indonesia by default, this is a checkable fact: read the country list, because a Bangkok, Kuala Lumpur, Singapore run without Bali is a different trip. That naming trap has a pricing twist of its own.
Why Does the 5-Country Bundle Cost Less Than the 3-Country One?
Asimgo prices its own two tiers against each other in a way that inverts expectations. The table compares the two Asimgo bundles on countries versus price, and the bigger plan wins on both counts.
Asimgo’s Singapore-Malaysia-Thailand bundle costs $0.56 per day and covers three countries with no Indonesia. Asimgo’s Southeast Asia – 5 Countries bundle costs $0.55 per day, one cent cheaper despite covering two more countries, adding both Indonesia and Vietnam. This is the same kind of provider-specific pricing anomaly confirmed on the USA+Canada+Mexico brief, where Asimgo’s 3-country North America plan undercut the same provider’s 2-country plan, so the behavior repeats across regions as a pattern, not a one-off. The anomaly does not extend to every provider, so treat each bundle list on its own terms. The neighboring question is what the exact 4-country match costs.
| Asimgo bundle | Countries covered | Price per day | Reading |
|---|---|---|---|
| Singapore-Malaysia-Thailand | 3 countries, no Indonesia | $0.56 | smaller plan costs more |
| Southeast Asia - 5 Countries | 5 countries: the 4 targets plus Vietnam | $0.55 | one cent cheaper with 2 more countries |
Is the Exact 4-Country Match Worth the Extra Cost?
iRoamly’s Southeast Asia – 4 Countries bundle is the only exact match on the board: Thailand, Malaysia, Singapore, and Indonesia, nothing else, at $2.50 per day with unlimited data. Asimgo’s Southeast Asia – 5 Countries bundle costs $0.55 per day unlimited, roughly one fifth of the iRoamly price, for one extra country that is neither needed nor unwanted in this data. The recommendation is the cheaper superset unless a traveler has a specific reason to exclude Vietnam; no such reason appears in the current plan terms. Both plans are unlimited, so the price gap buys precision, not performance. The exact match still earns its place as useful context: it proves a genuine 4-country product exists and sets the benchmark the superset beats. Duration changes the math slightly, so the 30-day tiers need their own check.
Which Bundle Wins for a Longer, 30-Day Trip?
At the 30-day tier, Asimgo’s Southeast Asia – 5 Countries plan costs $49.18, which works out to about $1.64 per day of unlimited data. iRoamly’s Southeast Asia – 4 Countries plan costs $90.50 for 30 days, about $3.02 per day, a difference of $41.32 for the same month of service. The per-day gap narrows slightly at longer durations compared with the 1-day tier, but the Asimgo superset still costs under half of the iRoamly exact match, so the recommendation holds for both short trips and month-long itineraries. With the tiers compared, the full ranked list can be assembled.
FAQs
Does one eSIM cover Thailand, Malaysia, Singapore, and Indonesia together?
Yes. Asimgo’s Southeast Asia – 5 Countries bundle covers all four targets plus Vietnam at $0.55 per day unlimited, and iRoamly’s Southeast Asia – 4 Countries bundle covers exactly the four at $2.50 per day. The cheapest option is the one that adds Vietnam for less.
Is the exact 4-country match worth buying over a broader bundle?
No, confirmed more expensive here: iRoamly’s exact match costs $2.50 per day against Asimgo’s $0.55 per day, roughly five times the rate for the same four core countries. Buy the broader bundle unless Vietnam’s inclusion is a specific problem, and no such problem appears in the plan terms.
Which provider has the cheapest true coverage right now?
Asimgo, at $0.55 per day with unlimited data on Southeast Asia – 5 Countries, confirmed in the 2026-09-04 data pull. No other bundle covering all four countries comes closer than iRoamly’s $2.50 per day.
Does the bundle include Vietnam automatically?
Yes, on the Asimgo 5-country pick: Vietnam ships in the country list by default, which is exactly why the plan undercuts the narrower 3-country Singapore-Malaysia-Thailand option while covering two more countries.
Is there a long-stay discount for a 30-day trip?
Yes. Asimgo’s 30-day tier costs $49.18, about $1.64 per day, still far cheaper than iRoamly’s $90.50 30-day equivalent at about $3.02 per day. The superset’s advantage narrows slightly at longer durations and never disappears.
Can I buy one country's plan and add the others later?
Technically yes, but it loses the bundle discount: four single-country plans combine to $1.70 per day against $0.55 on the Asimgo bundle. Buying the combined plan upfront once all 4 countries are confirmed is the cheaper order.
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