Bali runs on mobile data: ride apps, scooter rentals, villa check-ins and restaurant bookings all happen on your phone. Install the eSIM before you fly, and you are online while the plane is still taxiing at Ngurah Rai — no SIM counter, no passport photocopy, no queue.

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Ngurah Rai (DPS) is a busy airport, and the arrivals hall is where most people try to sort out a SIM — next to everyone else from the same flight. With an eSIM there is nothing to sort out.

The south is covered densely: Kuta, Seminyak, Canggu, Sanur, Jimbaran and Uluwatu all have solid 4G, and 5G in the busiest spots. Ubud town is well covered too.
It thins out where the island gets wild: the rice terraces and ridges north of Ubud, the road up to Mount Batur, the jungle waterfalls around Munduk, and the quieter coast of the east and north. Expect a bar or two rather than nothing — enough for maps and messages, not always for video calls.

Café Wi-Fi in Canggu and Ubud is usually fine until the afternoon rush or a power cut. A data plan with hotspot is the backup that saves a call: tether the laptop and carry on. If you are staying a month, take a larger bundle or an unlimited plan rather than topping up every few days.
Once a year, on Nyepi — the Balinese Day of Silence, usually in March — the whole island stops for 24 hours: the airport closes, nobody goes outside, and mobile internet is switched off across Bali by every operator. No plan, local or travel, works that day. Hotel Wi-Fi usually stays on. If your dates include Nyepi, download what you need the evening before.
Before heading to the terraces, waterfalls or Nusa Penida, save the area in Google Maps or Maps.me. Navigation then works with the weakest signal — or none.
It needs two things: eSIM support and no carrier lock. iPhones from the XS and XR onwards, Google Pixel 3 and later, and most recent Samsung Galaxy S, Z and A-series phones have eSIM. Check the list of compatible phones if you are not sure.
Before. Installing needs an internet connection, and home Wi-Fi is more dependable than the airport's. Check on the plan's page when its days start counting: for some plans it is the first connection to a network in Indonesia, for others the moment of installation — those are better installed shortly before departure.
Yes. Every plan on this page covers the whole of Indonesia, so it keeps working on the neighbouring islands, in Java, Komodo or anywhere else in the country. Coverage on small islands is thinner than in southern Bali.
Yes — the apps only need data. If an app asks for a phone number, use your usual one: the verification SMS arrives on your home line, which stays active next to the eSIM.
No. These are data-only plans. Calls and messages go through WhatsApp, Telegram, FaceTime or any other app, and your own number keeps working for ordinary calls and SMS.
Buy another plan in a minute from the site or the app — it installs next to the first one. Plans that support top-ups can be extended without installing anything new; the plan's page says which ones do.
哪里有信号、当地漫游如何计费,以及落地前需要知道的事。