Local SIM or international eSIM in Bali? The essential guide for interns (3 to 6 months)
This guide explains in simple terms what you need to know for your 3- to 6-month internship in Indonesia, without any particular recommendations, just the facts.
When you leave for an internship in Bali, one of the first essential needs is to have a stable internet connection as soon as you arrive. Whether it's to contact your host company, order a driver, check your accommodation address, or simply stay in touch, it's essential to choose between:
a local Indonesian SIM card,
or an international eSIM (such as MobiMatter, a partner of Bali Interns).
Why is IMEI important in Bali?
In Indonesia, any phone that uses a local Indonesian SIM card, whether physical or local eSIM, must have its IMEI number declared to customs.
Without this declaration, the phone may be blocked after 90 days on Indonesian networks.
The IMEI declaration involves:
an administrative procedure,
presentation of documents (passport, phone bill),
the payment of a tax that varies depending on the value of your phone (often 30 to 40% of the price).
This is important information for all students who come to do an internship lasting several months.
Option 1 — Use a local SIM card in Bali
A local SIM card can be convenient, but you need to take IMEI rules into account.
📌 What this means for a 3- to 6-month internship
Since your stay exceeds 90 days, you will need to:
report your IMEI,
or accept that your phone will be automatically locked after the time limit.
The declaration is possible and legal, but it may be:
expensive depending on the value of the phone,
time-consuming,
administratively binding.
Many students only discover this rule after they arrive, which is why it is important to understand the two options available.
Option 2 — Use an international eSIM
The international eSIM is a simple solution, as it does not require any IMEI registration.
It works anywhere in the world without using the Indonesian local network.
Here are its main advantages:
1. Simple purchase and activation before arrival
The international eSIM can be purchased before your flight:
you choose your package,
you receive a QR code,
You can activate the line in a few seconds.
Example: MobiMatter (Bali Interns partner).
2. Immediate connection upon landing
As soon as the plane touches down, your phone connects to the network.
No need to look for a store or buy a card.
This is useful for:
contact the driver sent by Bali Interns,
retrieve the route to your accommodation,
Use Grab or Gojek immediately.
3. Easy management of your consumption
With an international eSIM:
you can see your remaining data,
you receive alerts,
you can recharge with one click,
You can monitor your usage from an app.
This is a very practical solution for an internship lasting 3 to 6 months, especially if you want to avoid any administrative procedures.
4. No risk of IMEI blocking
Since the international eSIM does not use an Indonesian profile, your IMEI number does not need to be declared.
This way, you avoid:
customs procedures,
any costs,
the risk of the phone locking up.
For many students, this point alone is enough to choose this option.
Which solution should you choose for your internship in Bali?
For an internship lasting 3 to 6 months, the reality is simple:
✔ Local SIM card: Possible , but requires you to register your IMEI, which involves a cost and some paperwork.
✔ International eSIM: Simpler administration, immediate use, easy management. Example: MobiMatter (official partner of Bali Interns).
Both options are valid. Your choice depends on what you prefer: simplicity or a local approach.
Stay connected during your internship in Indonesia
Having reliable internet access is essential for a successful internship in Bali.
Now you know:
that the local SIM card requires an IMEI declaration for stays longer than 90 days,
that an international eSIM avoids this procedure,
that each option remains possible depending on your priorities.
Bali Interns supports each student before their arrival and provides you with all the information you need to ensure that your move to the island goes smoothly.
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