Indonesia eSIM: Best Data Plans for Travelers

The main reason is Indonesia's IMEI rule. Since 2020, a phone bought abroad can only use a local Indonesian SIM once its IMEI (the phone's 15-digit hardware ID) is recognized. With a local tourist SIM, the operator records your passport and IMEI during activation, which keeps the phone connected for up to 90 days. Stays longer than 90 days require registration with Indonesian Customs (Bea Cukai), and phones valued above USD 500 are taxed on the amount above that threshold. A travel eSIM avoids all of this: it connects as a roaming service, and Customs does not require IMEI registration for inbound roamers.

• No registration: No passport scan, IMEI form or queue in the arrivals hall.
• Online on landing: Install at home, switch your data to the eSIM when you land, and you're connected.
• No roaming surprises: You pay one fixed prepaid price instead of your home carrier's daily roaming fees.
• Keep your home number: Your regular SIM stays active for calls and bank verification texts.

Here's how the three ways to get online in Indonesia compare in the table below.

Works Across Bali, Jakarta, and Other Islands

One Indonesia eSIM covers the whole country. It connects to one of Indonesia's national networks (Telkomsel, Indosat Ooredoo Hutchison or XL), so it keeps working as you move from Jakarta to Bali's beaches or take the ferry to Lombok and the Gili Islands, with no SIM swaps after domestic flights.

Choose your plan by how you'll use your phone each day, not only by trip length. Maps and ride-hailing use very little data; short-form video and hotspot use burn through it quickly.

Short Trips & City Visits (1 GB – 5 GB)

A long weekend in Jakarta or three days in Bali needs about 1 GB if you mostly use maps, rides and messaging, or 2–3 GB with daily social media. A 5 GB plan covers a full week at moderate use. That's enough for booking Grab or Gojek from the airport pickup zone, checking warung (local restaurant) reviews, translating messages to drivers, and navigating on foot or by scooter.

Island Hopping (10 GB – 20 GB)

A one- to two-week route through Bali, Lombok and the Gili Islands typically uses 5–15 GB, depending on how much you post. You'll be checking fast-boat schedules, navigating long drives, uploading photos and messaging guesthouses, often without reliable Wi-Fi. A 10–20 GB plan leaves enough buffer that you won't need to top up halfway through.

Remote Work & Digital Nomads (20 GB+ or Unlimited)

If you work from Canggu or Ubud, a one-hour video meeting on Zoom or Google Meet typically uses about 0.5–1.5 GB, and laptop hotspot use adds up fast, so an unlimited plan or 20 GB+ is the safer choice. Before you buy, check two details: whether the plan allows hotspot, and whether an unlimited plan slows down after a daily high-speed allowance. If you'll stay longer than 90 days and plan to add a local SIM, you'll need Customs IMEI registration, ideally on arrival at the airport.

Indonesia has three national networks, and the one your eSIM uses matters more than any other plan detail once you leave the main tourist areas. Recent network benchmarks highlight Telkomsel as the clear leader in overall geographic coverage—especially across rural areas, national parks, and smaller islands—while XL and Indosat deliver competitive speeds in major metropolitan centers.

Before you buy, check which network the plan runs on. If your route goes beyond southern Bali and Java's big cities, a Telkomsel-based plan is the safest choice.

City Speed vs Mountain Coverage

In Jakarta, Surabaya, Bandung and southern Bali, 4G is fast enough for Grab, Google Maps and Instagram to load instantly. 5G is concentrated in major cities such as Greater Jakarta, Surabaya, Bandung, Makassar and Denpasar, and all three networks are expanding it quickly. Check whether your plan includes 5G, and expect to be on 4G outside the big city centers.

On volcano hikes such as Mount Bromo and Ijen, you'll usually have signal at the trailheads and main viewpoints. On longer treks like Rinjani, and in thick forest, expect long stretches with no connection. Download offline maps before you start any climb.

Yes. One Indonesia eSIM works nationwide, and your phone switches between local towers automatically as you fly or take ferries between islands. Here's what to expect in the main travel regions:

• Java: Strong 4G along train routes and in Jakarta, Yogyakarta and Surabaya.
• Bali: Reliable across Canggu, Seminyak, Ubud and Uluwatu. Signal thins in the rural north and central highlands, where Telkomsel holds up best.
• Lombok and the Gili Islands: Good coverage for maps and boat schedules, including on Gili Trawangan and Gili Air.
• Sumatra: Good speeds in Medan and around Lake Toba; coverage drops on rainforest trails.
• Komodo and Flores: Reliable in Labuan Bajo town and harbor. On boat trips through Komodo National Park, signal comes and goes, so download what you need before you sail.
• Raja Ampat, Maluku and Papua: Expect signal mainly around the main towns; many homestays and dive spots have none.

On the fast boat from Padang Bai in Bali to the Gilis or Lombok, you'll usually keep 4G near both coastlines, with a gap in the middle of the channel. That's enough to check your arrival time or message your hotel while you're still on the water.

Most travelers use 0.2–0.6 GB per day. Navigation and ride-hailing use almost no data; short-form video, streaming and hotspot use are what drain a plan.

Typical App Data Usage in Indonesia

Practical Tips for Managing Your Data

A typical day in Bali (an hour of navigation, three Grab rides, WhatsApp messages and a short call, 30 minutes of Reels and some browsing) adds up to about 0.55 GB. Use that as a baseline:

• Download offline Google Maps for Bali, Lombok or your Java route while you're on Wi-Fi.
• Turn on data-saver settings in TikTok and Instagram before you land.
• Turn off automatic photo backup (iCloud or Google Photos) on mobile data, and upload videos on hotel Wi-Fi.
• Add a 20% buffer to your estimate for background app activity and auto-playing video you don't notice.

With Diva eSIM, you're online as soon as you land: no passport check, no IMEI form and no airport counter. Your QR code arrives by email right after purchase, and on plans that support top-ups, you can add data mid-trip without installing a new eSIM.

Setting it up takes four steps:

1. Check that your phone supports eSIM and is carrier-unlocked.
2. At home, on Wi-Fi, scan the QR code (on iPhone: Settings → Cellular → Add eSIM; on Android, look under your SIM or mobile network settings). Don't delete the eSIM afterward, because most QR codes can only be installed once.
3. When you land, select the Diva eSIM as your mobile data line and turn on Data Roaming for it.
4. Keep Data Roaming off on your home SIM. It can still receive SMS such as bank verification codes, but some carriers charge for calls you answer abroad.

Moving Across Asian Borders

Indonesia is often one stop on a longer Southeast Asia route. Instead of buying a new SIM at every border, an eSIM for Asia keeps you online in multiple countries on one plan. Check the plan's country list against your route before you buy.

• Singapore layover: A Singapore eSIM gets you online at Changi Airport before your connecting flight to Bali.
• Heading north afterward: Add a Vietnam eSIM for that leg of the trip.