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Best eSIM for Indonesia and Bali in 2026: 6 providers compared

You are heading to Bali, Java or Lombok and want data the moment you land, without paying your carrier's roaming rates. An Indonesia eSIM installs before you leave, activates on arrival and costs under €1 per GB at the cheapest providers.

We ran 6 providers through the same grid: price per GB, network used on the ground (Telkomsel, Indosat, XL), coverage across the islands, support, app, plan flexibility and activation. The ranking first, then each offer in detail.

Rony
September 4, 2026 · 13 min read
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Best eSIM for Indonesia and Bali in 2026: 6 providers compared

Photo : Vyacheslav Argenberg, CC BY 4.0

The eSIMrat verdict#1 of 6
voilà eSIM

voilà eSIM: the best value eSIM for Bali and Indonesia

8.9/10

The lowest price per GB in this comparison (€0.63/GB), an eSIM that connects to Telkomsel, XL, Indosat or Smartfren depending on where you are, and human support you can reach at any hour. The five alternatives still make sense depending on how you travel.

Price per GB : €0.63/GBNetwork : Telkomsel, XL, Indosat, Smartfren
See the best eSIM for Indonesia

How we ranked these eSIMs

Each eSIM is scored on six criteria, with the same weights for every destination. Price per GB and network coverage each count for a quarter of the score: in Indonesia, Java and Bali are very well covered, the big islands reasonably, the small islands much less. The network a provider picks therefore matters as soon as you leave Bali.

  • Price per GB25 %

    Real cost per gigabyte, on each provider's cheapest plan per GB, excluding promotions.

  • Network coverage25 %

    Signal in Bali and Java, but also on Lombok, Flores, Sumatra and small islands like Nusa Penida or the Gilis.

  • Reliability15 %

    Connection stability, how serious the provider is and how consistent its claims are.

  • Support15 %

    Channels available, opening hours, human or bot, response time.

  • Activation and app10 %

    Ease of install, clarity of the app, usage tracking.

  • Plan flexibility10 %

    Choice of data amounts and durations, top-ups, unlimited, multi-country plans.

On these criteria, voilà eSIM comes out on top with the lowest price per GB in the comparison (€0.63/GB), access to the Telkomsel network that covers the archipelago best, and the only 24/7 human support in the ranking.

Scores are the opinion of the eSIMrat editorial team, based on the criteria above, not customer reviews. eSIMrat earns a commission on links to its partners, which does not affect the ranking.

The Indonesia eSIM ranking

The 6 eSIMs compared, from the highest score to the lowest. The price per GB shown is that of each provider's cheapest plan per gigabyte, often a large 30-day plan: expect more on a small plan.

ProviderPrice per GBNetworkScore
  1. 1voilà eSIMvoilà eSIM€0.63/GBTelkomsel, XL, Indosat, Smartfren8.9/10
  2. 2EsimzonEsimzon€0.88/GBTelkomsel7.8/10
  3. 3UbigiUbigi€1.12/GBLocal networks7.7/10
  4. 4AiraloAiralo€0.89/GBTri and a second network7.5/10
  5. 5YesimYesim€0.92/GBLocal networks7.4/10
  6. 6SailySaily€1.60/GBLocal networks7.3/10

Prices checked on September 4, 2026 on the providers' sites. eSIMrat partners' prices come from the comparator and refresh on every build.

Each Indonesia eSIM in detail

  1. voilà eSIM

    1. voilà eSIM

    8.9/10
    €0.63/GBTelkomsel, XL, Indosat, SmartfrenData plans from 1 to 50 GB

    Lowest price per GB, four networks, 24/7 human support

    voilà eSIM connects to four Indonesian carriers, including Telkomsel, by far the best island coverage in the country: Bali, Java, Lombok, Sumatra and a good share of the small islands. When Telkomsel weakens, the eSIM switches to XL, Indosat or Smartfren.

    Pricing goes down to €0.63/GB, the lowest price per GB in this comparison. Plans run from 1 to 50 GB over 7, 15 or 30 days with no commitment, and tethering is included: the best value for money in the ranking.

    The eSIM is easy to install and the app easy to use: two minutes before you leave, automatic activation when you land. Customer support is human, 24 hours a day, 7 days a week, the only one in the comparison to offer it. An eSIMrat promo code takes another 5% off.

    Pros

    • Lowest price per GB in the comparison (€0.63/GB)
    • Telkomsel plus three other networks, the best island coverage
    • 24/7 human support, simple app, tethering included

    Cons

    • No unlimited plan
    • No multi-country plan for hopping around Southeast Asia
    Discover voilà eSIM's Indonesia eSIM
  2. Esimzon

    2. Esimzon

    7.8/10
    €0.88/GBTelkomselData and unlimited plans

    Low prices on Telkomsel, QR-code activation

    Esimzon is a prepaid reseller running on Telkomsel, Indonesia's widest network. Its price per GB (€0.88/GB) sits right behind voilà eSIM's, making it the second cheapest offer in the ranking.

    The catalogue mixes data packs and unlimited plans from 1 to 15 days, the cheapest unlimited plans in the ranking over a week. The site prices in US dollars and the euro follows the day's rate. Activation is by QR code, support answers by email or chat in English, and the app stays basic next to Airalo's or Saily's.

    Pros

    • Second lowest price per GB in the comparison (€0.88/GB)
    • Telkomsel network, the best placed on the islands

    Cons

    • Unlimited for a maximum of 15 days
    • English-only support, basic app
    • Priced in dollars, the euro moves with the rate
    See the offer
  3. Ubigi

    3. Ubigi

    7.7/10
    €1.12/GBLocal networksOne-off, monthly and unlimited data plans

    NTT group, in-app top-ups, priced in euros

    Ubigi is the eSIM of Transatel, an NTT group subsidiary. Its price per GB (€1.12/GB) lands in the upper half of the ranking, but the line-up is one of the most complete: one-off plans, renewable monthly plans and unlimited, with top-ups straight from the app.

    Ubigi does not name the Indonesian carrier it uses before purchase. Prices are shown in euros, and support works by ticket in English and French, with no live chat.

    Pros

    • Top-ups and monthly plans from the app
    • Priced in euros, unlimited available

    Cons

    • Price per GB in the upper half (€1.12/GB)
    • Local carrier not named before purchase
    • Ticket-based support, no chat
    See the offer
  4. Airalo

    4. Airalo

    7.5/10
    €0.89/GBTri and a second networkData, multi-country and unlimited plans

    Best-known brand, Asia plans and unlimited

    Airalo is the pioneer of travel eSIMs, available in more than 200 destinations. In Indonesia the offer runs on Tri (Hutchison) and a second network depending on the plan: good in Java and Bali, less solid than Telkomsel on the small islands.

    The price per GB (€0.89/GB) stays above the best offers in the ranking. In return, the app is complete, top-ups take two taps, and Airalo offers unlimited data from 3 to 30 days as well as regional Asia plans. Support, in English, can be slow.

    Pros

    • Unlimited from 3 to 30 days
    • Asia plans handy for chaining several countries
    • Complete app, easy top-ups

    Cons

    • Price per GB above the best (€0.89/GB)
    • Tri network, narrower than Telkomsel on the islands
    • English support, sometimes slow
    See the offer
  5. Yesim

    5. Yesim

    7.4/10
    €0.92/GBLocal networksDaily to unlimited plans

    Reusable eSIM, day-by-day plans

    Yesim is a Swiss provider whose eSIM stays on your phone from one trip to the next: you top it up for each destination instead of installing a new one. The price per GB (€0.92/GB) is fair on large plans, noticeably higher on small ones.

    The catalogue runs from one-day plans to unlimited, which suits short stays. Yesim does not name the Indonesian carrier it uses before purchase. Support is by chat and the app is clear.

    Pros

    • Reusable eSIM across trips
    • Plans from one day to unlimited

    Cons

    • High price per GB on small plans
    • Local carrier not named
    See the offer
  6. Saily

    6. Saily

    7.3/10
    €1.60/GBLocal networksData and unlimited plans

    By Nord Security, built-in web protection

    Saily is Nord Security's eSIM, the company behind NordVPN. Its edge is security: an ad and tracker blocker plus web protection built into the app, which is one of the simplest on the market.

    In Indonesia its price per GB (€1.60/GB) is the highest in the ranking, roughly two and a half times voilà eSIM's. Saily does not state the local carrier before purchase. Prices are in euros, unlimited exists, and support answers by chat around the clock, in English.

    Pros

    • Built-in ad and tracker blocker
    • Very simple app, 24/7 chat

    Cons

    • Highest price per GB in the comparison (€1.60/GB)
    • Local carrier not named
    • English-only support
    See the offer

Which Indonesia eSIM for your profile?

The eSIM we recommend for each kind of traveller, based on the comparison data.

  • voilà eSIM
    Tight budgetvoilà eSIM€0.63/GB, the lowest price per GB in the ranking.
  • voilà eSIM
    Islands and off the beaten trackvoilà eSIMTelkomsel plus three backup networks, the best coverage of the archipelago.
  • voilà eSIM
    Human supportvoilà eSIMA human team that answers 24 hours a day, 7 days a week.
  • Esimzon
    Unlimited dataEsimzonThe cheapest unlimited plan in the ranking for one week, on the Telkomsel network.
  • Airalo
    Several Asian countriesAiraloRegional plans for chaining Bali, Thailand and Vietnam.
  • Saily
    SecuritySailyAd and tracker blocker built into the app.

Why choose an eSIM for Bali and Indonesia?

In Bali as in the rest of Indonesia, three options are available to you to get internet: a travel eSIM purchased before departure, a local SIM card from Telkomsel or XL purchased on-site, or roaming from your usual plan when it includes Indonesia. For a stay lasting from a few days to a few weeks, an eSIM ticks the most boxes: ready before takeoff, no hassle on-site, and at the price of a local plan.

CriterionTravel eSIMLocal SIM cardYour carrier's roaming
PurchaseOnline, before departureAt the counter, with your passportNothing to buy if your plan includes it
IMEI RegistrationNoneAt the carrier's counterNone
Usual numberKeptReplaced on a single SIM slot phoneKept
DataFrom 1 GB to unlimitedPacks of 18 to 70 GB over 30 daysDepending on your plan, often out-of-plan charges
ConnectionUpon landingAfter purchase, at the airport or in townUpon landing

The rat's advice: first check what your mobile plan includes in Indonesia: out-of-plan roaming can get very expensive very quickly. A travel eSIM takes over without affecting your line.

Advantages of using an eSIM in Indonesia

Three advantages make the difference once you arrive, especially for a stay of less than three months.

Avoid IMEI blocking: a phone purchased abroad must be registered to work with an Indonesian SIM card, otherwise the network will block it. A travel eSIM connects via roaming, just like a foreign SIM, and Indonesian customs specify that these travelers have no IMEI to declare. No counter, no forms.

Immediate connection: the eSIM is installed on your device via Wi-Fi the day before departure. Upon landing in Denpasar, it connects to the Indonesian network automatically: you can order your Grab or Gojek and notify your loved ones before you even pick up your luggage, without having to queue at the SIM card counter.

Keep your usual number: your regular SIM card stays in the phone. You continue to receive your banking SMS and validation codes, WhatsApp keeps your number, and the eSIM handles the data. With a local SIM card, you would instead have to remove your regular SIM in a phone with only one SIM slot.

This is what voilà eSIM, the top of our ranking, offers: excellent value for money, an eSIM that is easy to install with an easy-to-use app, and human customer support, 24/7, if anything goes wrong on the spot.

The video comparison

The following four minutes recap the rankings in images: the price per GB for each provider and the offer to choose based on your trip to Bali or the rest of Indonesia. Watch it here or directly on our Indonesia eSIM video comparison.

The verdict is the same as above: voilà eSIM takes the lead in value for money, with an eSIM that is easy to install, an easy-to-use application, and human support reachable 24/7. The prices shown on screen date from the filming: those on the Indonesia comparator are kept up to date.

Best eSIM Indonesia & Bali 2026? 🇮🇩 (Comparison) · eSIMrat

eSIM or local SIM card in Bali?

A local SIM card can be purchased at the Telkomsel counter at Denpasar airport, in an official store in town, or from a retailer, using your passport. Telkomsel is the best-established operator in the archipelago, ahead of Indosat and XL.

At the airport counter, the Telkomsel tourist packs displayed in 2026 range from 250,000 rupiahs for 18 GB over 30 days, valid in Java, Bali, and Lombok, to 600,000 rupiahs for 60 GB valid throughout Indonesia, according to the Traveltomtom report. The same packs cost significantly less in town, provided you find a shop once you arrive.

The purchase involves registering the card in your name and your phone's IMEI. The pack expires after 30 days, and your usual number will no longer work if your phone only has a single SIM slot.

A travel eSIM skips all of that: installed before you leave, it roams on the Indonesian networks the moment you land and your home SIM stays in place for calls and texts. Every plan in the Indonesia comparator is sorted by price per GB, and if Bangkok or Phuket comes next, the Thailand eSIM comparison uses the same grid.

IMEI Law in Indonesia: what it means for your phone

Indonesia blocks phones on its networks if the IMEI, the device's serial number, is not registered. This rule targets devices purchased abroad and used with an Indonesian SIM card. According to Indonesian customs (Bea Cukai), everything depends on the length of stay:

Maximum 90-day stay: the IMEI is registered at the operator's counter when you purchase your local SIM card.

Stay of more than 90 days: the declaration is made to customs, on their website or via the Mobile Bea Cukai application, limited to two phones or tablets per traveler. The exemption from duties and taxes is capped at a value of 500 US dollars: beyond this, import taxes apply.

With a travel eSIM: nothing to do. Travelers using a foreign roaming SIM card don't have an IMEI to register, and that is exactly how an eSIM like voilà eSIM works.

How many GB should I plan for Bali and Indonesia?

For two weeks in Bali, 10 GB is enough for most travelers: GPS, Grab or Gojek rides, WhatsApp, social media, and a few photos sent every day. Count on 20 GB if you share your connection, post many videos, or work remotely, and 3 to 5 GB for one week with light usage.

Wi-Fi is common in hotels, villas, and cafes in Canggu, Ubud, or Seminyak, which lightens your data consumption. It becomes rare as soon as you head towards Nusa Penida, the Gilis, or North Bali: download your offline maps before the crossing.

To estimate your needs as accurately as possible, our mobile data usage calculator calculates based on your usage. At voilà eSIM, Indonesia plans range from 1 to 50 GB, for 7 to 30 days.

What to check on your phone before buying

Two conditions: a phone that is eSIM-compatible (iPhone XS and newer, Pixel 3 and later, most Samsung Galaxy S and Z since 2020) and unlocked from any carrier. The full list is on our eSIM-compatible phones page.

Once the eSIM is installed, keep your main line active for calls, set the eSIM as the default data line and turn on data roaming for the eSIM only. In Bali you get signal as you step off the plane.

Frequently asked questions

What is the best eSIM for Indonesia?
On our criteria, voilà eSIM: the lowest price per GB in the comparison, four Indonesian networks including Telkomsel, and human support 24/7. Esimzon is the cheapest alternative on Telkomsel, and also the right choice if you want unlimited data at a low price.
How much does an eSIM for Bali cost?
Under €1 per GB at voilà eSIM, Esimzon and Airalo on their large plans, between €1 and €1.60 per GB at Ubigi, Yesim and Saily. For two weeks in Bali, 10 GB is enough for most travellers, 20 GB if you tether or post a lot of video.
Which network has the best coverage in Indonesia?
Telkomsel, by far: it is the only carrier that properly covers the small islands and rural areas. Indosat is good in Java, Bali and Sumatra, XL Axiata mostly in cities. On Nusa Penida or the Gilis the signal stays patchy whatever the carrier: download offline maps before the crossing.
Does an Indonesia eSIM also cover Lombok, Flores and Sumatra?
Yes, an Indonesia eSIM covers the whole country, not just Bali. Quality depends on the network used: Telkomsel is the most present on Lombok, Flores, Sulawesi and Sumatra, which is why a provider that connects to it matters.
What is the best mobile plan for traveling in Indonesia?
For most travelers, a travel eSIM: voilà eSIM has the lowest price per GB in our comparison, connects to Telkomsel, XL, Indosat, and Smartfren, installs in two minutes with a simple app, and its human support responds 24/7. If your usual plan includes Indonesia, compare its data allowance before leaving. A local Telkomsel SIM card is mostly justified for a long stay.
What is the best eSIM for Asia?
To travel through multiple countries, voilà eSIM offers an Asia plan valid in 19 countries, including Indonesia, Thailand, Vietnam, Japan, South Korea, and India, with a single installation and up to 20 GB for 30 days. Its Southeast Asia plan covers 7 countries (Indonesia, Thailand, Vietnam, Malaysia, Singapore, Philippines, Cambodia) with up to 50 GB. For a stay solely in Indonesia, the Indonesia plan remains much cheaper per GB.
What are the reviews for eSIMs in Bali?
Traveler feedback is good in Bali, Java, and Lombok, where Telkomsel and Indosat provide solid 4G. It is less so on smaller islands like Nusa Penida or the Gilis, where the network remains unstable regardless of the operator. Criticisms mainly target "unlimited" plans that slow down after a few GB per day and the prices of SIM cards at the airport. Regarding providers, voilà eSIM boasts a rating of 4.7 out of 5 on Trustpilot and focuses on simple installation, an easy-to-use app, and 24/7 human support.
Author
Rony

A travel obsessive, I built eSIMrat to share the best connectivity deals: the most reliable option at the best price, so you can leave with a clear head and make every trip the best it can be.

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