The short answer
You do not need the SIM counter at Bali airport: install an eSIM before you fly and you are online the moment the wheels touch down at DPS. An eSIM installs from a QR code in about two minutes at home, then connects to the local network when you land. The counters in the arrivals hall still exist and still work; they are simply the slowest and most expensive way to end up on the same Telkomsel network your eSIM would use anyway.
What the arrivals SIM counters charge
SIM counters at Ngurah Rai airport sell tourist packages for roughly 250,000 to 1,250,000 IDR as of July 2026, well above what the same data costs in town or online. The cheapest package at the baggage-belt counters has hovered around 400,000 IDR (about €22). Indonesian law requires every SIM to be registered, so each sale needs your passport and several minutes of counter time, and a queue forms whenever a widebody unloads. After a red-eye, that queue is the last thing standing between you and your hotel.
Airport Wi-Fi: fine, until you step outside
DPS has free Wi-Fi (the "NgurahRai" network, no password) that handles messages and a ride-hailing booking without trouble. Sessions run about four hours, more than any arrival needs. The catch is where it ends: at the door. You lose the signal exactly when data matters most, out in the pickup area coordinating a Grab, and on the road when the driver messages you. Airport Wi-Fi covers the terminal; it does not get you to Canggu.
Why installing before you fly wins
An eSIM installed at home wins on every count that matters after a flight: no queue, no airport markup, no passport handed over a counter. Goodbars plans cost €13.99 for 10GB, €19.99 for 20GB and €39.99 for 50GB, each valid 30 days, and the clock only starts when the eSIM first connects in Indonesia, so installing days early costs nothing. To be fair about the alternatives: a phone shop in town can beat any tourist price if you have the time, and if your phone does not support eSIM, the counter is your practical option.
Telkomsel coverage at DPS
Telkomsel runs 5G inside Ngurah Rai airport, with the airport operator quoting speeds up to 250 to 300 Mbps, and it is Indonesia's largest network once you leave. That means your first speed test in Bali may be the fastest of the whole trip. Coverage stays strong across southern Bali and the main towns; it thins honestly on remote beaches and up the volcano slopes, which no SIM sold at any counter fixes either.
Step timing: install at home, activate on landing
The order that works: buy and install on home Wi-Fi, do nothing during the flight, switch the line on after landing. Installation is a QR scan and about two minutes of settings. On the ground at DPS: turn off airplane mode, enable data roaming on the travel eSIM line, and set it as your data line. Most phones latch onto Telkomsel within a minute, which usually means you are online before you reach passport control, with the taxi negotiation researched and your driver already booked.
