Bali SIM Card: which one to buy to stay connected in 2026

The right choice depends mostly on the length of your stay and your itinerary on the island. This table should help you decide in a minute.

For the vast majority of travelers, an eSIM for Bali is the simplest choice. A local SIM card makes sense for long stays and when an Indonesian number is essential. And if you are with Free, start by checking your plan: Indonesia is included, so you might not need to buy anything.

We detail the three solutions just below.

There are three solutions for getting internet in Bali, and they are not in the same league. Here is what each one truly offers.

The local SIM card: a habit worth questioning

Long considered the obvious choice, a local SIM card still has two real advantages: it is unbeatable in terms of price per GB for long stays, and it gives you an Indonesian number (+62), which is practical for making reservations or being called back.

The downside is well known to everyone who has done it: presenting your passport, registering in-store, handing over your French SIM card that you must put away without losing it, and the risk of a poorly entered declaration cutting your line three days later. On a two-week trip, you spend an hour sorting this out just to save about ten euros.

Your French operator's international plan: the calculation to make before you leave

It's the option most travelers forget to check, even though it can be free. It all depends on your operator, and the difference between them is considerable.

Prices excluding options, based on data from specialized sources in September 2026. Check the exact conditions of your plan before leaving, as they change often.

Two points to remember. If you are with Free, you are all set for data and can stop there, as Indonesia is among the covered destinations. With the other three, out-of-plan data is charged per megabyte at rates that can blow up a bill in a single evening: without a pass, watching three videos costs more than an entire eSIM stay.

And in all cases, a clarification that applies to all French operators: calls and SMS from Indonesia are never included, even with Free. Only data is.

Prepaid eSIM: the simplest solution for a short stay

An eSIM card is a virtual SIM card downloaded directly to your phone. You buy it online before you leave, install it by scanning a QR code, and your internet connection activates automatically upon landing.

No paperwork on-site, no passport to pull out, no physical card to handle. Your French line stays active alongside it to receive your SMS, especially those from your bank. At voilà, expect to pay $8.70 for 10 GB for 30 days and $15.10 for 20 GB, with data sharing included and no blocked applications.

It's the option we recommend for the vast majority of stays in Bali, all those lasting less than a month.

The advantage of a Bali eSIM matters where it counts most: upon arrival, when you walk out of the terminal with your luggage and want to order a ride. Here is what it concretely saves you from.

Three extra advantages that become clear once you arrive: hotspotting is included, so you can help out those traveling with you; no apps are blocked, including banking applications; and if you run out, you can top up from the app in seconds, without having to search for an open shop.

A prerequisite above all: your phone must be eSIM compatible. This is the case for all iPhones since the XR, Samsung Galaxy S20 and later, and Google Pixel since the 3, so most devices released after 2018. If in doubt, we'll show you how to check your phone's compatibility in ten seconds.

Good to know: an eSIM for Bali means you don't have to remove your French SIM card. Both lines coexist on your phone. You keep the French one to receive your security SMS, such as those from your bank, and your data goes through the eSIM.

The only point of caution remains device compatibility. If your phone is more than seven years old or if it was purchased carrier-locked, check before buying. This is the only case where a local SIM card remains your only option.

Four brands share the island, but they only rely on three truly distinct networks.

The Telkomsel SIM card remains the gold standard on the island. It covers more than 97% of the Indonesian population in 4G and is the only network you can rely on in Amed, Munduk, or Sidemen, as well as on the islands around Bali.

XL Axiata and Smartfren have merged to form XLSmart, whose operations began on April 16, 2025. Both brands continue to be sold separately in stores and, in Bali, their networks are not yet equal: the readings below show XL coverage is significantly denser than Smartfren's. Between the two, go with XL.

The maps below come from nPerf, which aggregates measurements made by users from their phones. These are not official carrier maps: they show what was actually captured where people have tested. Data from September 1st, 2026.

The color coding is identical on all four cards: blue for 2G, green for 3G, orange for 4G, red for 4G+, and purple for 5G.

Telkomsel

The most comprehensive coverage on the island, by far. 4G+ covers almost the entire road network, from the south to Singaraja in the north and Karangasem in the east. 5G is concentrated in Denpasar, Kuta, and the Ubud corridor. We even recorded measurements on maritime links to Nusa Penida and Lombok, something no other operator displays.

XL

The island's second network, and the most surprising one: it's XL that pushes 5G the furthest inland, across the entire Denpasar, Tabanan, Ubud axis, with a branch reaching up to Danau Buyan. The northwest, around Negara, remains on simple 4G.

IM3 (Indosat Ooredoo)

Good road coverage across the entire island, with plenty of 4G+ on the main routes. 5G remains limited to the south, around Denpasar and Kuta. The west, towards Negara and Gilimanuk, switches to standard 4G.

Smartfren

The sparsest network of the four. Entire sections of the interior and the west of the island show no coverage, and the recorded coverage is mostly simple 4G. 5G exists in the south and on a branch towards Ubud. It is an urban network, best reserved for stays that do not leave the south.

The maps provide the overview. Here is now what it looks like in practice, place by place, in the areas where you will actually be spending your time.

Where 5G is available: Denpasar, Kuta, Seminyak, Denpasar airport, and part of Canggu. Telkomsel operates approximately 225 Hyper 5G points in southern Bali, including 67 in Denpasar and 136 in the Badung Regency.

Where you will have 4G: Ubud, Uluwatu, Nusa Dua, Legian and the entire north and east of the island. Surveys confirm it: these areas appear in orange and red on the four maps. 4G there is fast and more than sufficient for Google Maps, navigation, video calls, and social media.

Remember the simple rule: in the touristy south, the four operators get the job done. As soon as you head north or leave the main routes, Telkomsel takes the lead, XL follows, and Smartfren falls behind.

Many travelers combine Bali with one or two neighboring islands. This is where the choice of operator becomes concrete.

Nusa Penida remains on 4G, with no prospect of 5G in the short term due to the geography and infrastructure. Coverage is decent around Toya Pakeh and the main sites, but more erratic on the tracks in the west of the island, those leading to Kelingking and Angel's Billabong.

The Gilis (Gili Trawangan, Gili Air, Gili Meno) are covered, with a significantly more stable signal on Telkomsel than on competing networks. Perfect for enjoying the beaches without losing your connection.

Lombok is well-served on the west coast and around Kuta Lombok, becoming more irregular on the foothills of Rinjani.

A SIM card or an eSIM purchased in Bali works on all these islands: Indonesian plans are national, never regional. No need to repeat any steps when changing islands.

The price of SIM cards in Bali depends much less on the operator than on where you buy them. The difference is spectacular.

A few specific benchmarks noted in 2026: the official Telkomsel tourist prepaid card costs 150,000 IDR for 25 GB of data and 25 minutes of calls over 30 days. Indosat offers approximately 30 GB for around 100,000 IDR. An XL starter card with 3 GB for 30 days can be found for around 35,000 IDR, which is less than $2.

The arrival hall trap is real: the same plan sold for 100,000 IDR in town goes for 350,000 IDR at the airport. A twenty-minute scooter ride is enough to cut the bill by three.

Regarding eSIMs, the rates recorded on September 1st, 2026, on the official websites:

Over two weeks of normal usage, 20 GB is more than enough. This comparison is clear: you pay $15.10 with voilà, compared to over $42 with Airalo or with a Holafly eSIM for unlimited data that you won't even use. This gap explains the value for money offered by voilà: the price shown is the final price, with no subscriptions or automatic renewals.

The voilà eSIM plans rely on the Telkomsel, XL, Indosat, and Smartfren networks, with data sharing included for the whole family and no blocked applications. Google Maps, banking apps, and social media work normally as soon as you land.

Four types of points of sale, and they are not all equal.

1. Denpasar Airport arrival hall: the Telkomsel (red), XL (blue), and Indosat (orange) stands are in the international terminal. Immediate activation right in front of you, but prices are significantly marked up. Only consider this if you arrive at night and need to order transport immediately.
2. An official shop: GraPARI for Telkomsel, XL Center for XL. They are everywhere in the south of the island, in Kuta, Seminyak, Canggu, Ubud, on Sunset Road, and at Mal Bali Galeria. Displayed prices, registration done correctly, takes 5 to 10 minutes.
3. An Indomaret or Alfamart convenience store: very practical, present on every street corner, low prices. On the other hand, registering your card there is often rushed, and a poorly handled declaration can cut your line a few days later. This is the most frequent problem reported by travelers.
4. Online, before you leave: you buy your eSIM from France, you install it by scanning a QR code, and your internet connection activates automatically upon arrival. No trips to a store, no passport to pull out, no negotiating in Indonesian.

The right amount of data depends more on your usage than on the duration.

Two habits that save you data. Remember to download your offline Google Maps plans before leaving; it easily saves 1 GB during a trip. And make use of cafe and coworking space Wi-Fi: from Canggu to Ubud, it is often excellent, as the island has become a major destination for remote work.

If your trip spans multiple countries, the Southeast Asia regional plan covers Indonesia, Thailand, Vietnam, and Malaysia with a single eSIM, without the need for reinstallation at every border.

With an eSIM, before departure:

1. Choose your plan based on the length of your stay and buy it online.
2. Install the profile by scanning the QR code received via email, or activate it in one click from the app.
3. Upon landing, activate mobile data and data roaming on the eSIM line. The connection happens automatically.

With a local SIM card, on-site:

1. GB to an official GraPARI or XL Center store with your passport.
2. Save the card and verify with the vendor that the network is working before you leave.
3. Note your new number and the top-up code, you'll need them to add more data.

In Bali, everything goes through two apps: Grab and Gojek. Scooter, car, food delivery, groceries. Here is what you need to know before you go.

Creating your account before you leave is the right move. Registering on Grab or Gojek requires a verification code sent via SMS. Do it from France, using your French number, while you have signal. Once the account is created, both applications work with a simple data connection.

If you create your account once you arrive without a local SIM card, you will need to receive the verification SMS on your French number. Receiving an SMS abroad is generally not charged by French operators, but check your plan's terms and conditions before leaving.

For calls, WhatsApp does the job: it's the application everyone uses in Indonesia, from drivers to hotels to scooter rentals. A travel eSIM does not assign a phone number, we explain why here, so calls and messages are handled through applications.

For a classic one to three-week stay in Bali, purchasing an eSIM before departure is the most rational choice: you are connected as soon as you step off the plane, you avoid paying arrival hall surcharges, and you have no paperwork to deal with on-site. Count on $15.10 to get 20 GB for 30 days with voilà, featuring human customer support reachable 24/7 if something goes wrong at 3 a.m.

A local SIM card remains useful beyond one month on the island, or when you need an Indonesian number. In that case, aim for Telkomsel at an official GraPARI store, never an airport stand, and keep your passport on you.