Best eSIM for One Month in Indonesia (2026)
The best eSIM for one month in Indonesia depends on how much data you need. For pure value, TravelSim Asia’s 50GB/30-day plan at $34.99 is the cheapest monthly option we found. If you need truly unlimited data instead, Ubigi’s 30-day unlimited plan at $59 is the pick. We compared TravelSim Asia, Airalo, Saily and Ubigi on 30-day pricing, coverage and flexibility below.
By the MyBestSIM Editorial Team · Updated July 2026 · 9 min read
1. Why Use an eSIM for Indonesia?
Roaming with your home carrier across Indonesia is usually the most expensive option, with per-MB charges that add up fast over a month. A local SIM card is cheaper but means finding a kiosk, showing ID, and juggling a second physical card. A local eSIM data plan solves both problems: you buy it online, install it before you fly, and it’s ready the moment you land.
Because eSIMs run alongside your existing number, you keep receiving calls and texts on your primary line while using local data for maps, messaging apps and social media. Here’s what a good eSIM plan gives you:
- No physical SIM to insert, lose, or swap at the airport
- Instant activation, often before you even board your flight
- Keep your home number active for calls and verification codes
- Avoid bill-shock roaming charges from your regular carrier
- Easy top-ups if you run out of data mid-trip
- Works across multiple islands without switching SIMs
The real question isn’t whether to use an eSIM, but which one fits your trip — and that comes down to a few practical criteria.
2. Key Criteria for Choosing the Right eSIM
Network Coverage and Quality
Some eSIM providers connect through tier-1 local networks like Telkomsel and XL Axiata, which generally offer the best coverage in Bali, Java and Sumatra. Others rely on MVNO agreements that can mean slightly weaker signal in rural areas or on smaller islands. If your trip includes remote regions, checking the underlying network matters more than the brand name.
Data Volume and Pricing
For a full month in Indonesia, data needs vary a lot by traveler type. Use this as a rough sizing guide:
- Light use (maps, messaging, occasional browsing): 5-10GB
- Moderate use (social media, some streaming): 10-20GB
- Heavy use (daily video calls, streaming, remote work): unlimited or 50GB+
Calls, SMS and a Local Phone Number
None of the four providers compared here — TravelSim Asia, Airalo, Saily or Ubigi — include voice calls or SMS with an Indonesian phone number; all four are data-only eSIM data plan options. If you need to make local calls, plan to use an app like WhatsApp over data instead, or keep a spare local SIM for that specific purpose.
Activation Experience and Support
A smooth activation experience means a clear QR code, no app requirement, and responsive support if something goes wrong. Before buying, it’s worth checking that your specific phone model is supported — see our eSIM compatible phones guide for a full list of confirmed devices.
3. Quick Comparison: Top 4 Providers for One Month
| Provider | Coverage | Calls & SMS | 30-Day Price From | Promo Code | Best For | Strength |
|---|---|---|---|---|---|---|
| TravelSim Asia | XL / Telkomsel | Data-only | $10.99 (5GB) | MYBESTSIM |
Best value for a full month (50GB) | Instant delivery, no app |
| Airalo | XL / Telkomsel | Data-only | $13.50 (5GB) | MYBESTSIM15 |
Flexible sizes, unlimited option | Largest global eSIM catalog |
| Saily | Local network partners | Data-only | €7.99 (3GB) | MYBESTSIM |
Budget short stays | Cashback credits on every purchase |
| Ubigi | Multi-network | Data-only | $16 (10GB) | MYBESTSIM |
Long stays, unlimited data | Widest range of validities |
4. Detailed Provider Reviews
1. TravelSim Asia — Best Value for a Full Month
The best eSIM for one month in Indonesia is arguably TravelSim Asia’s 50GB/30-day plan at $34.99 — about $0.70 per GB, undercutting Airalo’s $49 for the same 50GB. The eSIM runs on the XL and Telkomsel networks, two of the strongest local carriers in Indonesia, and also covers Thailand, Japan, South Korea, Vietnam and the Philippines.
With the MYBESTSIM code, TravelSim Asia’s 50GB plan drops to roughly $33.24. No app is required, hotspot sharing is fully allowed, and delivery is instant by email. Read our full TravelSim Asia review for the complete breakdown.
- No account or app needed — manage everything via a secure personal dashboard link, with no marketing emails after purchase
- Cheapest 50GB/30-day plan in this comparison
- 180-day activation window, 100% hotspot sharing allowed
- Straightforward, capped data instead of an “unlimited” label hiding a throttled daily fair-use policy
- One-off purchases only, no auto-renewing monthly/annual plans
- Regional Asia coverage — travelers continuing outside Asia need a different eSIM
- No calls or SMS included
- Fewer duration options than Ubigi
TravelSim Asia — Data-Only Plans
| Duration | Data | Price |
|---|---|---|
| 7 days | 1GB | $3.99 |
| 15 days | 3GB | $7.99 |
| 30 days | 5GB | $10.99 |
| 30 days | 10GB | $16.99 PROMO -5% |
| 30 days | 20GB | $27.99 |
| 30 days | 50GB | $34.99 |
Prices are approximate and subject to change. Use code MYBESTSIM for 5% off via our TravelSim Asia affiliate link.
2. Airalo — Biggest Catalog, Unlimited Option
Airalo is one of the most established names in eSIM, and its Indonesia offer covers both standard data-only plans and a separate unlimited data tier. The standard range runs from a 3-day 1GB pack up to a 30-day 50GB plan, giving good flexibility for different trip lengths.
The unlimited line is the standout feature here, with options from 3 to 30 days, useful for digital nomads who don’t want to track usage. The downside is that Airalo’s unlimited plans cost noticeably more than equivalent capped data from competitors, so heavy users should compare carefully before committing.
- Both standard and unlimited plans available
- Wide range of durations, 3 to 30 days
- Trusted, widely-used app and support
- Good coverage via XL/Telkomsel
- Unlimited plans are the priciest in this comparison
- No calls or SMS included
- Standard 30-day 50GB plan costs more than rivals
- Requires the Airalo app for management
Airalo — Standard Data Plans
| Duration | Data | Price |
|---|---|---|
| 7 days | 10GB | $19.00 |
| 15 days | 10GB | $20.00 |
| 30 days | 5GB | $13.50 |
| 30 days | 10GB | $21.00 |
| 30 days | 20GB | $35.00 |
| 30 days | 50GB | $49.00 |
Airalo — Unlimited Plans
| Duration | Data | Price |
|---|---|---|
| 7 days | Unlimited | $27.00 |
| 15 days | Unlimited | $49.00 |
| 30 days | Unlimited | $69.00 |
Prices are approximate and subject to change. Use code MYBESTSIM15 for 15% off via our Airalo affiliate link.
3. Saily — Budget Pick With Cashback
Saily, built by the team behind NordVPN, offers a clean and simple pricing structure for Indonesia, with data-only plans from 1GB up to an unlimited tier. Every purchase also earns 3% back in Saily credits, a small but useful perk for repeat travelers.
Its 20GB/30-day plan is marked as the “best choice” and offers a good balance of price and volume for a month-long trip. The main limitation is that its unlimited plan caps full speed at 5GB per day before throttling to 1Mb/s, which is noticeably slower than a true unlimited plan.
- 3% cashback in credits on every purchase
- Simple, uncluttered plan selection
- Competitive pricing on mid-size plans
- Clear 30-day activation window on all plans
- Unlimited plan throttles after 5GB/day
- Prices shown in euros only, adds conversion friction
- No calls or SMS included
- Fewer high-volume tiers than Ubigi
Saily — Data Plans
| Duration | Data | Price |
|---|---|---|
| 7 days | 1GB | €4.49 |
| 30 days | 3GB | €7.99 |
| 30 days | 10GB | €19.49 |
| 30 days | 20GB | €31.99 |
| 15 days | Unlimited (throttled after 5GB/day) | €43.49 |
Prices are approximate and subject to change. Use code MYBESTSIM for 10% off via our Saily affiliate link.
4. Ubigi — Most Flexible Validity Options
Ubigi stands out for sheer variety: one-off, monthly and annual options, plus several unlimited tiers at 7, 15 and 30 days. Its 25GB/30-day plan is the current best seller, sitting in a sweet spot for travelers who stream and browse but don’t need true unlimited data.
Ubigi’s unlimited 30-day plan at around $59 is the most affordable true unlimited option in this comparison. The trade-off is a busier interface with many similar-looking options, which can make comparing plans slightly more time-consuming than with simpler providers.
- Cheapest true unlimited 30-day plan compared
- Widest range of durations and volumes
- Monthly and annual options for repeat travelers
- Competitive entry-level pricing from $4
- Interface can feel cluttered with similar plans
- No calls or SMS included
- Some plans overlap in price/data, adding confusion
- Less brand recognition than Airalo
Ubigi — Data Plans
| Duration | Data | Price |
|---|---|---|
| 7 days | 1GB | $4 |
| 30 days | 10GB | $16 |
| 30 days | 25GB | $28 |
| 30 days | Unlimited | $59 |
Prices are approximate and subject to change. Use code MYBESTSIM for 10% off via our Ubigi affiliate link.
5. Best eSIM by Traveler Profile
🗓️ Full-Month Traveler
→ TravelSim Asia. Its 50GB/30-day plan at $34.99 ($0.70/GB) is the cheapest way to cover a full month, beating Airalo’s $49 for the same 50GB. Instant delivery also means you can activate it right at the airport gate.
🎒 Multi-Country Backpacker
→ Airalo. With one of the largest eSIM catalogs covering dozens of countries, it’s easy to grab a new local plan for each stop after Indonesia, all from the same trusted app.
💼 Business Traveler
→ Ubigi. The 25GB/30-day best-seller plan covers video calls and email comfortably, and the option to add monthly recurring plans suits travelers who return to Indonesia often.
💻 Digital Nomad
→ Ubigi’s unlimited 30-day plan at $59 is the most affordable true unlimited option here, ideal for anyone streaming, video-calling and uploading files daily for a full month.
6. Device Compatibility & Activation Guide
Before buying, confirm your exact phone model supports eSIM and is carrier-unlocked. See our full eSIM compatible phones guide to check your device.
Most iPhones from the XS series onward, along with recent Samsung Galaxy, Google Pixel, and other flagship Android models, support eSIM. Older or budget devices, and phones locked to a specific carrier, often can’t install a second eSIM profile.
- Buy your eSIM plan online and receive the QR code by email
- Scan the QR code from your phone’s cellular/eSIM settings
- Enable data roaming and activate once you land in Indonesia
7. Promo Codes & Discounts
| Provider | Promo Code | Discount | Link |
|---|---|---|---|
| TravelSim Asia | MYBESTSIM |
5% OFF | Get plan |
| Airalo | MYBESTSIM15 |
15% OFF | Get plan |
| Saily | MYBESTSIM |
10% OFF | Get plan |
| Ubigi | MYBESTSIM |
10% OFF | Get plan |
8. Conclusion
TravelSim Asia’s 50GB/30-day plan at $34.99 is the best eSIM for one month in Indonesia on pure value — the cheapest 50GB monthly option we found, undercutting Airalo’s equivalent 50GB plan at $49. If you specifically need uncapped, truly unlimited data regardless of cost, Ubigi’s unlimited 30-day plan is the one to pick.
Whichever plan you pick, check your device compatibility first, apply the relevant promo code, and activate only once you’ve landed to make the most of your validity window.
Our verdicts by use case:
- TravelSim Asia: best value for a full month (50GB at $34.99)
- Airalo: best for backpackers visiting several countries
- Saily: best for budget travelers who want cashback
- Ubigi: best if you want truly unlimited data at any cost
9. Frequently Asked Questions (FAQ)
Which eSIM offers the best network coverage for Indonesia?
TravelSim Asia and Airalo both connect to XL and Telkomsel, two of Indonesia’s strongest local networks, giving reliable coverage across Java, Bali and most tourist areas. Ubigi and Saily also perform well, though rural signal can vary.
What is the cheapest eSIM for Indonesia?
TravelSim Asia’s 1GB/7-day plan at $3.99 is the lowest entry price in this comparison. Ubigi’s 1GB/7-day plan at around $4 is nearly identical for very short trips with light data needs.
Can I use an eSIM for calls and SMS in Indonesia?
No. TravelSim Asia, Airalo, Saily and Ubigi all sell data-only eSIMs for Indonesia. For calls, use an app like WhatsApp over data, or keep your home SIM active for texts.
Does eSIM work in all Indonesian regions/countries?
Coverage is strong in Bali, Java, and Sumatra thanks to XL and Telkomsel networks. Remote islands and rural parts of eastern Indonesia may have weaker or intermittent signal.
Do I need to unlock my phone?
Yes, your phone must be carrier-unlocked and eSIM-compatible. Most iPhones from XS onward and recent Android flagships support eSIM, but check with your carrier if you’re unsure.
How do I activate an eSIM for Indonesia?
Buy your plan online, scan the QR code sent by email in your phone’s eSIM settings, then enable data roaming once you land in Indonesia. Activation usually takes a few minutes.
Is eSIM better than a local SIM card?
An eSIM is faster to set up, doesn’t require finding a shop or queueing, and can be activated before you land. A physical SIM can be slightly cheaper but involves more hassle and paperwork.
How much data do I need for one month in Indonesia?
For light use (maps, messaging), 5-10GB is usually enough. Frequent streaming, video calls or remote work push that to 20GB or more, which is why several providers offer unlimited monthly plans.
Can I top up my eSIM if I run out of data?
Yes. TravelSim Asia, Airalo, Saily and Ubigi all let you buy a new data package or top-up directly from their app or website without needing a new eSIM profile.
Is the MYBESTSIM promo code valid for all providers?
The MYBESTSIM code applies across TravelSim Asia, Saily and Ubigi, while Airalo uses the code MYBESTSIM15. Discounts vary by provider, so check each offer before checkout.
Passionate about travel and tech, I have combined these two worlds to help travelers understand the numerous options to get Internet access abroad and identify the best option for them. As a software development engineer, I put my skills at the service of simple, practical and transparent content. My goal is to give you all the keys to stay connected easily and at the best price during your trips. 🌍📲