Product info
Batam eSIM plans
| Unlimited data · 5 days | $17.99 | Buy eSIM |
| Ohayu recommendsUnlimited data · 10 days | $33.99 | Buy eSIM |
| Unlimited data · 15 days | $36.99 | Buy eSIM |
| Unlimited data · 30 days | $54.99 | Buy eSIM |
| 3GB prepaid eSIM · 14 days | $8.49$2.83 / GB | Buy eSIM |
| 5GB prepaid eSIM · 30 days | $13.49$2.70 / GB | Buy eSIM |
| 10GB prepaid eSIM · 30 days | $19.99$2.00 / GB | Buy eSIM |
| 15GB prepaid eSIM · 60 days | $26.99$1.80 / GB | Buy eSIM |
| 20GB prepaid eSIM · 30 days | $33.49$1.67 / GB | Buy eSIM |
| 50GB prepaid eSIM · 30 days | $72.99$1.46 / GB | Buy eSIM |
You can install your eSIM before the trip and activate it when you arrive in Indonesia. Validity starts after eSIM activation.
Plan details
How much mobile data you need
What's the best eSIM for Batam?
A weekend from Singapore – 3 GB
Maps, ride-hailing, restaurants.
A week in the Riau Islands – 10 GB
Batam and Bintan.
Indonesia more widely – 20 GB
Batam plus Java or Bali.
Working or on business – Unlimited
Tethering in the industrial parks.
Coverage and network
Coverage on the island, and where it ends
Indonesia mobile networks
Batam is an hour by ferry from Singapore and runs as a free trade zone, which has made it an industrial and weekend-break island rather than a typical Indonesian destination. The developed north and centre are well covered. The thing to get right here is which country's network you are on.
Speedtest Global Index · Mobile · Indonesia · June 2026
Download
62.98 Mbps
Upload
19.13 Mbps
Latency
20 ms
Global rank
#72 of 98
Batam, specifically
- Nagoya, Batam Centre, Batu Ampar: Consistent 4G with 5G in parts. The commercial districts and the industrial parks are properly served.
- The ferry terminals: Sekupang, Batam Centre and Harbour Bay are all covered, which matters because ferry schedules change and the terminals are not well signed.
- Crossing to Singapore: An Indonesian plan does not cover Singapore. The crossing takes about an hour and plenty of people do it as a day trip without thinking about data - you need a separate Singapore plan, or you are relying on Wi-Fi at the other end.
- Barelang bridges and the south: The chain of bridges south towards Galang is covered along the road. The smaller islands at the end and the mangrove areas thin out.
- Onward to Bintan: The Bintan ferry stays in Indonesian coverage, so the same plan works there - a different situation from the Singapore run.
Indonesia, not Singapore
The plan covers all of Indonesia, Batam and Bintan included. Singapore is an hour away by boat and needs its own plan.
How to install eSIM
Connected in 3 steps
- 01
Buy before you fly
Choose your data plan before your trip.
- 02
Download & install
Log in to your account, tap your eSIM, and follow the on-screen instructions.
- 03
Land & activate
Activate when you arrive in Indonesia. Turn on roaming for the eSIM and it connects to a local network.
Before you buy, make sure your phone supports eSIM — see Ohayu compatible devices list or dial *#06#. It's a free request to your phone's settings. If you see the EID number — your phone is eSIM-compatible.
Arriving on Batam
Airport and ferry terminal Wi-Fi
Hang Nadim provides free Wi-Fi in the departure areas, though it publishes no network name. Most visitors arrive by ferry from Singapore instead, where you clear immigration into a terminal with no reliable public network at all.
Side by side
Batam eSIM Comparison
Indicative comparison based on publicly listed Indonesia plans as of August 2026. Competitor pricing and policies change - check their sites for current terms.
Frequently asked questions
Does an Indonesia plan work in Singapore?
No. Batam is about an hour from Singapore by ferry and the two are entirely separate markets, so an Indonesian plan ends when you clear immigration. If your trip is really Singapore-with-a-Batam-weekend, you need both. Coverage holds right up to the terminal on the Indonesian side.
Where to buy a SIM card on Batam?
Operator outlets in Nagoya and the Batam Centre malls, and counters at Hang Nadim. Passport required. If you have arrived by ferry for a weekend, the errand eats a chunk of a short trip.
Will my phone stop working here? The IMEI question
Only if you use a locally issued SIM. Indonesia checks handset IMEIs against a national register and cuts unregistered phones off local networks within hours. Foreign-issued roaming plans are exempt as inbound roaming, so an Ohayu eSIM is not affected and needs no registration.
eSIM not working on Batam?
First check you have not crossed to Singapore - that is outside the plan entirely. On the island, confirm Ohayu is selected for mobile data with roaming allowed, then toggle Airplane mode. Chat and support@ohayu.com are open 24/7.
