The best eSIM for Indonesia for 30 days is the one whose data, validity and network fit your route, not the one with the biggest number on the label. A month usually means navigation, ride-hailing apps, messaging, bookings and social media, and for some travelers remote work. A plan that runs out of days or data in week four causes more trouble than one that costs a few dollars more.
This guide explains what to look for in an eSIM for a 30-day trip to Indonesia and compares available options from BaliSIM, Nomad, Saily, Airalo, Holafly and Ubigi. It covers data allowances, validity periods, network coverage, pricing and local phone number availability, so you can choose a plan that fits your itinerary and connectivity needs.
Updated October 2026. Prices in USD from official provider pages; plans and prices change, so confirm on the product page before buying.
What Should You Look for in a 30-Day Indonesia eSIM?
Five factors decide whether a plan works for a month in Indonesia: data allowance, validity, network coverage, price and value, and device compatibility.
Data Allowance
Start from your habits, not from the plan list. Maps, messaging and occasional browsing use much less data than daily video streaming, frequent uploads, video calls or tethering a laptop. Actual use also depends on app settings and how often you are on Wi-Fi, so any estimate is a rough guide, not a guarantee.
A practical way to estimate is to check how much mobile data your phone used at home last month, then adjust for the apps you will lean on more while travelling, such as navigation and ride-hailing. BaliSIM's data usage calculator asks about these habits and gives an estimate for your stay.
Validity Period
A plan marketed as an "eSIM 30 days" product may not cover a full 30-day trip. Data validity (how long the data works) and the registration or IMEI period (how long the line stays active) can differ, and the clock may start at purchase, installation, arrival or first connection depending on the provider.
BaliSIM's pages show the difference. Its Telkomsel Bali Visitor eSIM lists data valid for 28 days on the 20 GB and larger plans, while its XL Bali Visitor eSIM lists data valid for 30 days with the IMEI active for up to 90 days. BaliSIM counts validity from your arrival date. Count your own days from arrival and confirm how the provider counts them.
Network Coverage Across Indonesia
Travel eSIMs connect through one or more local networks. Of the providers compared here, BaliSIM sells Telkomsel and XL plans, Nomad and Saily list Telkomsel, Holafly lists XL and Telkomsel, and Ubigi's Indonesia page lists Indosat Ooredoo Hutchison.
Coverage varies between cities, rural areas, islands and indoor locations, and no provider can promise signal everywhere. Holafly's own Bali page, for example, notes coverage can be more limited in mountainous areas, on isolated beaches and around Mount Batur and Mount Agung. Check the places you will actually visit instead of relying on country-level claims.
Price and Value
Compare total cost against what you get: data, days, hotspot rules, calls, a local number, top-up options and any registration step. A cheap plan is poor value if it ends before your trip does or blocks tethering. Holafly's Bali page lists unlimited data but caps hotspot at 1 GB per day, and an "unlimited" label does not make a plan the right fit if you use a modest amount.
Device Compatibility and Activation
Your phone must support eSIM, and if it was bought on a carrier plan it usually needs to be unlocked to use another provider's eSIM. Installation (adding the eSIM profile) and activation (the line becoming usable) are not always the same step.
For BaliSIM's eSIMs, you install the eSIM from the email you receive and then submit a registration form with a passport photo and an image of your phone's IMEI. Check BaliSIM's supported phones list first. For background on the rules, see can foreigners buy Bali SIM cards and eSIMs in Indonesia.
Comparing the Best eSIM Options for Indonesia for 30 Days
Rather than naming one best eSIM Indonesia travelers should buy, the table lays out what each official page lists. The table focuses on eSIM options for travelers planning a 30-day stay in Indonesia. Not every plan provides 30 full days of data, so the exact validity period is listed separately. Where a provider's current 30-day package or pricing could not be verified, this is clearly indicated rather than estimate.
| Provider | Data allowance | Validity | Network or coverage | Local phone number | Best for |
|---|---|---|---|---|---|
| BaliSIM – eSIM XL Bali Visitor | 18, 25, 39, 68, 103, 153 GB with 5 min calls; 171 and 403 GB with 50 min | Data 30 days; IMEI active up to 90 days | XL; quotas listed as national, 3G/4G/5G | Yes, +62 | A +62 number plus a full month of data, with top-ups while the IMEI is active |
| BaliSIM – eSIM Telkomsel Bali Visitor | 13 GB; 20, 36, 53, 63, 83 GB with 25 min calls | IMEI up to 30 days; data 28 days on 20 GB+ plans | Telkomsel; plans listed for Bali and Lombok | Yes, +62 | Bali and Lombok stays of about four weeks, or 30 days with a top-up |
| BaliSIM – eSIM Telkomsel Indonesia (Nationwide) | 38 GB or 103 GB, both with 120 min calls | IMEI up to 30 days; data 28 days | Telkomsel; listed as nationwide | Yes, +62 | Multi-island trips that need a +62 number |
| Nomad | 3, 5 or 10 GB | 30 days | Telkomsel | Depends on plan | Fixed-data 30-day plans where internet access is the priority |
| Saily | 3, 5, 10 or 20 GB | 30 days | Telkomsel, 4G LTE and 5G | No (optional US number) | Data, with optional calls and texts through a US number |
| Airalo | Unlimited (fixed 30-day plans not verified) | 30 days | Varies by plan; page lists a primary network plus others | Not verified | Unlimited-style data where a local number is not needed |
| Holafly | Unlimited (hotspot capped at 1 GB/day) | 30 days | XL and Telkomsel | No | Phone-only use without counting GB |
| Ubigi | Not verified | Not verified | Indosat Ooredoo Hutchison, as listed | No (data-only) | Travelers who want in-app top-ups; confirm 30-day bundles first |
Prices and package details were recorded from provider pages checked in October 2026. Prices, promotions and availability may change, so confirm the current details on each provider's official website before purchasing. Packages with unverified validity or pricing are marked accordingly.
Is BaliSIM a Good Choice for a 30-Day Trip to Indonesia?
BaliSIM is a good fit for some 30-day trips and not for others. It is an Indonesia-focused retailer, so it makes sense when you want a local number and local network options, and when you are comfortable with a registration step. Everything below comes from BaliSIM's current product pages.
The XL Bali Visitor plans list 30 days of data validity, while the Telkomsel Bali Visitor and nationwide plans listed here provide 28 days of data. If you need connectivity for the entire 30-day trip, compare the available packages carefully and confirm whether a suitable top-up or another plan can cover the remaining days. Also check network coverage for your destinations before choosing a network.
Each listed plan includes a +62 number once registration is activated, plus hotspot. Call minutes come with selected plans: 5 or 50 on the XL plans, 25 on the Telkomsel Bali plans of 20 GB and above, and 120 on the nationwide plans. The product pages do not itemise incoming calls or SMS, so confirm those with the team if they matter to you. Top-ups work differently by product: the XL page says you can top up while the IMEI is active, while the Telkomsel pages say top-ups are not possible once the IMEI period has ended. BaliSIM also lists Telkomsel and XL top-ups and physical SIM cards with free hotel delivery in Bali.
The limits are worth stating. BaliSIM's eSIMs are tied to one device, the QR code cannot be reused on another phone, and registration takes extra steps compared with a data-only eSIM. If a quick install and no registration matter more than a local number, a global provider may suit you better. If you want to explore the options, you can compare BaliSIM's current Indonesia eSIM plans.
Best eSIM for Bali vs. the Rest of Indonesia
The best eSIM for Bali may not be the best option for a trip across Indonesia. Before choosing a plan, consider where you will travel and which local networks are available in those areas.
Bali only: A Bali-focused plan may be sufficient if its coverage and validity match your itinerary.
Bali and Lombok: Check whether the selected plan supports both destinations and verify coverage for your accommodation and travel routes.
Java and other Indonesian islands: Consider a nationwide plan if you will travel beyond Bali, and confirm any restrictions on where the plan can be activated or used.
Remote destinations: Network availability can vary significantly in rural, mountainous and coastal areas. Check coverage for your specific destinations rather than relying only on national coverage claims.
If you are comparing the best eSIM Bali options, prioritize the network, validity and data allowance that match your actual route.
Frequently Asked Questions
What is the best eSIM for Indonesia for 30 days?
There is no single best choice. Pick a plan whose data validity covers all 30 days, whose data allowance fits your usage, and whose network covers your route. If you need a +62 number, compare local plans such as BaliSIM's. If you only need internet, compare data-only options such as Nomad or Saily. Check each provider's current listing before buying.
Which is the best eSIM in Indonesia for tourists?
It depends on what you need. For internet only, several global providers offer 30-day Indonesia plans. For a local +62 number, BaliSIM's Telkomsel and XL eSIMs include one after registration. For island-hopping, check that the plan covers your destinations: BaliSIM's Telkomsel Bali Visitor plan is listed for Bali and Lombok, and it has a separate nationwide Telkomsel plan.
Is an eSIM better than a physical SIM for a month in Indonesia?
Not always. An eSIM can be installed before you travel, and your home SIM can stay in the phone. A physical SIM suits phones without eSIM support, and BaliSIM lists Telkomsel and XL physical SIM cards with free hotel delivery in Bali. Check each product page for plan, registration and delivery details.
How much data do I need for 30 days in Indonesia?
It depends on how you use your phone. Maps and messaging use much less than daily video streaming, video calls or laptop tethering, and Wi-Fi access changes the total. Check your usual monthly mobile data use, adjust for the apps you will rely on, and try BaliSIM's data usage calculator. Avoid buying the largest plan by default.
Can I buy an Indonesia eSIM before arriving?
Yes. BaliSIM, Nomad, Saily, Airalo, Holafly and Ubigi all sell eSIMs online. BaliSIM sends the eSIM by email and asks you to register with a passport photo and IMEI image before the line is active, and it counts validity from your arrival date. For its Telkomsel nationwide plan, BaliSIM says the eSIM is sent one day before arrival.
Will my eSIM work in Bali and other Indonesian islands?
Often, but coverage varies by network, island and location. BaliSIM's FAQ lists typical coverage in Denpasar, Canggu, Seminyak, Kuta, Jimbaran, Uluwatu and Ubud, and says remote villages, mountains and small islands can be weaker. Its Telkomsel Bali Visitor plan is listed for Bali and Lombok. Check coverage for your actual route before buying.
Can I get an Indonesian phone number with an eSIM?
With some, yes. BaliSIM's Bali Visitor and nationwide eSIMs include a +62 number once registration is activated. Many global eSIMs are data-only: Holafly and Ubigi say so, Saily's optional number is a US number, and Nomad says only some of its eSIMs include a local number. Check the exact plan before you buy.
Does an Indonesia eSIM expire after 30 days?
Many plans do, but the exact rules differ. BaliSIM's XL Bali Visitor eSIM lists data valid for 30 days with the IMEI active for up to 90 days, while its Telkomsel Bali Visitor plans of 20 GB and above list 28 days of data. Check both the data validity and when the clock starts for your plan.
Can I use my eSIM for Grab and Gojek?
A data connection is enough to open the apps, but registering with a local number needs one. BaliSIM's eSIMs include a +62 number, though app requirements vary and no eSIM can guarantee that registration will succeed. BaliSIM has a guide on setting up Gojek and Grab accounts with an eSIM.
How can I check whether my phone supports eSIM?
Check your manufacturer's eSIM support information and look for an option to add an eSIM in your phone's SIM or cellular settings. Apple says eSIM works on iPhone XS, XS Max, XR and later, and BaliSIM publishes a supported phones list. Your phone must also be unlocked to use another provider's eSIM.
Conclusion
For a month in Indonesia, five factors decide the right eSIM: data allowance, validity, network coverage, compatibility and total price. Match each one to your actual itinerary and usage instead of picking the largest or cheapest plan. A data-only eSIM can be enough for internet access, and a local plan makes sense if you also want a +62 number.
If that sounds like your trip, BaliSIM is an option to explore when its available packages match your needs, including checking the validity of the plan you pick. When you are ready, you can look at BaliSIM's current Indonesia eSIM plans and confirm the details on the product page.
