| Option | When you get it | Between islands | Who it suits |
|---|---|---|---|
| eSIM | Bought online, delivered in about ten minutes | Telkomsel has the widest reach and holds up best offshore | Multi-island routes; landing already connected |
| Local SIM at the airport | Queue on arrival, passport registration required | Depends who you bought from | Handsets without eSIM |
| Resort wifi | Nothing to arrange | Gone the moment you leave the grounds | Pure resort stays |
| Roaming from home | Arranged before departure | Whichever partner network | Short trips, minimal usage |
Indonesia is an archipelago, and that has a direct consequence: a connection that feels perfect in central Bali is a completely different proposition on the boat to Gili or Komodo. What matters when picking a network is national reach, not a headline speed figure from one city.
Bali, Jakarta and Yogyakarta covered, and it holds up on island-hopping routes. Buy before you fly and land already connected.
See Indonesia eSIM plansHow the three documents relate, what each screen asks for, and the levy that gets missed most often.
A Bali day crosses beach, town and rice terrace and coverage differs across them, plus how the plan days work.
Signal notes from travelling with it, installation steps and the usual questions.
Check Indonesia against the next stop on your route in one table.
Dial *#06# and look for an EID. Pick your brand and the checker gives you the exact settings path, plus three caveats that catch people out.
Trip length plus how you actually use your phone, returning a figure with headroom built in rather than the bare minimum.
Full steps for iPhone and Android, when to install, and what to check if it will not connect.
Yes, and the day before departure is ideal. Installation needs a stable connection, so doing it at home is easier than doing it in an arrivals hall.
It is not. There are three separate items: the visa (e-VOA), the arrival declaration (All Indonesia) and the Bali tourist levy. People routinely assume the visa covers everything and find out otherwise on arrival. Our arrival guide sets out all three.
The further offshore you are, the weaker it gets — that is physics and applies to every network. Telkomsel has the most complete coverage in Indonesia and you will usually hold a signal near land. Download offline maps, ferry times and your accommodation address first.
Most plans allow it, though it varies by handset and plan and we cannot promise every combination works. Island routes already have variable signal, and sharing a hotspot makes the experience less predictable — one eSIM per phone is safer.
Gojek and Grab, Google Translate and photo uploads run more or less all day, and plenty of people also post video from the beach, which pushes usage above a typical city trip. Go mid-to-upper, prefer a total-allowance plan, and use the data calculator for a figure.
Yes — Telkomsel covers Java and the main tourist islands. Volcano hikes and remote nature reserves will be weaker for terrain reasons, so saving your route offline beforehand is worth the two minutes.
If you are not sure your handset will work, or installation stalls halfway, message us on LINE at @peanutmo / WhatsApp +886-921-963-203. A screenshot of your *#06# result is the fastest way for us to answer. Indonesia eSIM comes with a money-back guarantee, and the QR code reaches your inbox in about ten minutes.
Last updated: 2026-08-03