Land at Ngurah Rai already connected. No airport SIM queue, no passport form, no waiting — here is everything you need to stay online across Bali, Nusa Penida, and the Gili Islands.
Quick verdict
A travel eSIM on Telkomsel is the best connectivity option for Bali in 2025. Indonesian law requires passport registration for all local SIM cards — airport counters and convenience stores process this in person only. A travel eSIM skips all of that: buy online, scan a QR code at home, and you're connected the moment you land.
eSIM vs local SIM card in Bali
Factor
Travel eSIM
Bali local SIM
Passport required
No
Yes — mandatory by law
Setup time
2 min online
15–30 min in person
Buy before trip
Yes — install at home
No — buy on arrival
Price
From $4 / 7 days
From $3 / 10 days (very cheap)
Airport availability
Pre-installed
Yes, long queues at Ngurah Rai
Data speed
4G/LTE (Telkomsel)
4G/LTE
Top-up options
Buy a new plan
Top up at Alfamart / Indomaret
Keeps home number
Yes — dual SIM
No — replaces your SIM
Local Bali SIMs are among the cheapest in the world — if you're staying long-term (1+ month) and don't mind the airport registration process, they offer excellent value. For holidays and short stays, eSIM wins on convenience.
Indonesian mobile networks
Indonesia has three major networks. Telkomsel (marketed as Simpati) is the largest and has far the best coverage across Bali and the outer islands. Most travel eSIMs for Indonesia use Telkomsel.
Network
Overall
Outer islands
Best for
Telkomsel (Simpati)
Best — widest nationwide
Nusa Penida, Lombok, Gili T
Best choice for Bali + day trips
XL Axiata
Very good in cities
Nusa Penida patchy
Strong in Kuta, Seminyak, Canggu
Indosat Ooredoo
Good in tourist areas
Variable
Less common for travel eSIMs
How much data do you need in Bali?
Holiday traveller
3–5 GB / week
Google Maps, Grab, Instagram, messaging
Recommended: 5–10 GB for 2 weeks
Explorer / day tripper
4–6 GB / week
Maps to temples and rice terraces, photo uploads, video calls
Recommended: 10 GB for 2 weeks
Digital nomad
20–30 GB / month
Video calls, cloud sync, hotspot backup when café Wi-Fi is slow
Recommended: 20–30 GB monthly plan
Nomad tip: Canggu and Ubud have plenty of café Wi-Fi, but speeds can be unreliable. Keep a 20+ GB eSIM plan active for Zoom calls and large uploads — it's far cheaper than a pocket Wi-Fi rental.
Coverage on Bali's surrounding islands
Nusa Penida
Good
Telkomsel covers the main tourist beaches and viewpoints — Kelingking, Broken Beach, Diamond Beach, Crystal Bay. Interior roads and cliff trails drop to weak signal. Download offline maps before the ferry.
Nusa Lembongan
Good
Small island with solid coverage in Mushroom Bay and Jungut Batu. Most of the island is reachable by Telkomsel 4G.
Gili Trawangan
Good
Telkomsel covers Gili T reasonably well. The island is small and signal is consistent around the main beach area.
Gili Air / Gili Meno
Patchy
Coverage is variable. Gili Air main areas have some Telkomsel signal. Gili Meno is quieter and signal drops in the interior.
Lombok
Good
Telkomsel covers Lombok's west coast (Mataram, Senggigi) and the Gili islands ferry ports well. Mount Rinjani trekking routes have no coverage above base camp.
Set up your Bali eSIM before you fly
✓Buy online before your trip — no passport, no in-person registration
✓Install at home on Wi-Fi (QR code scan, under 2 minutes)
✓Your data plan activates when you first use mobile data in Indonesia
✓Use dual SIM — your home number stays active for calls and texts
✓Download offline Google Maps for Bali and Nusa Penida before departure
✓Grab works in Bali (Kuta, Seminyak, Canggu, Ubud) — make sure eSIM is active before you need a taxi
One Indonesia plan covers Bali, Nusa Penida, Lombok, and all other islands. See all Indonesia plans →
Frequently asked questions
Does eSIM work in Bali?
Yes. Bali has solid 4G LTE in all major tourist areas. Telkomsel covers Seminyak, Canggu, Ubud, Uluwatu, and most of Nusa Penida. Remote cliffs and interior roads may have weak signal.
Is eSIM available in Indonesia?
Yes. Travel eSIMs work across Indonesia on Telkomsel. Local SIM cards require passport registration in person.
Does eSIM work on Nusa Penida?
Mostly yes. Telkomsel covers the main beaches and viewpoints (Kelingking, Diamond Beach, Crystal Bay). Interior roads and cliff walks are patchy — download offline maps first.
How much data do I need in Bali?
Holiday travellers use 3–5 GB per week (maps, Grab, social). Digital nomads using eSIM as a hotspot backup need 20–30 GB/month.
Do I need a passport for a SIM card in Bali?
Yes — Indonesian law mandates passport registration for all SIM purchases. An eSIM avoids this entirely: buy online, install at home, no ID required.
Ready to buy your Bali eSIM?
Instant QR code delivery. No passport needed. Works on arrival.