We show a saving only when roaming would genuinely cover your whole trip.
UK → Indonesia · roaming vs eSIM
Compare eSIMs for Indonesia.
Compare what your UK network charges to roam in Indonesia with travel eSIMs sized for your trip. See the hotspot rules, speed caps and fair-use limits before opening checkout.
20 destinations20 with eSIM pricesRoaming priced, never guessedNo account needed
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Hotspot rules, speed caps and fair-use limits beside every plan.
See where each number came from and when we checked it.
The Indonesia guide · updated 10 Sept 2026
Short answer: buy an Indonesia eSIM before you fly. It also avoids the phone registration a local SIM involves on long stays.
Indonesia is outside every UK network's Europe zone. EE sells passes from £6 for 24 hours, O2 Travel is £7 a day at 2Mbps, and Three sells Go Roam Around the World passes from £12.50 for 3 days. For a week or two in Bali, an eSIM with enough data usually costs less. A travel eSIM roams like a UK SIM, so Indonesia's phone registration rules for local SIMs don't apply to it.
- Local networks
- Telkomsel, Indosat Ooredoo Hutchison and XL. Nomad lists Telkomsel, and Airalo uses 3, part of Indosat Ooredoo Hutchison.
- Phone registration
- Phones used with a local Indonesian SIM must be registered. Tourist SIMs register your phone for 90 days when you buy them; longer stays need registering at customs, and phones worth over US$500 are taxed.
- Roaming is exempt
- Visitors roaming on a foreign SIM or travel eSIM don't need to register their phone with customs.
- Getting around
- Grab and Gojek, the main ride and delivery apps, need data.
What your UK network charges in Indonesia
Indonesia is outside every UK network's Europe zone. Where a network publishes a charge for Indonesia, the row is priced in the calculator above and links to the network's page. Where it prices against your account, we say so rather than guess.
| Network | How Indonesia is charged | Worth knowing | Source |
|---|---|---|---|
| EE | EE Rest of World Zone 1 pass: £6 for 24 hours, £30 for 7 days, £50 for 15 days | Uses your UK allowance, up to a 50GB fair-use ceiling. Full Works and some older plans may already cover this zone, so check the EE app first. | EE mobile price guide ↗checked 25 Aug 2026 |
| O2 | O2 Travel: £7 on each day you use it | Unlimited data, minutes and texts, with speeds capped at 2Mbps: fine for maps and messages, slow for video. Ultimate and some other plans already include it. | O2 Travel ↗checked 10 Sept 2026 |
| Vodafone | Priced against your plan in Vodafone's roaming checker | Vodafone's public pages don't print one rate for Indonesia. Its roaming checker shows the charge for your number, and some plans include it. | Vodafone global roaming ↗checked 25 Aug 2026 |
| Three | Go Roam Around the World passes: £12.50 for 3 days, £30 for 7, £60 for 14 | Or £5 a day on plans taken out between October 2021 and 17 December 2025; check My3 for the rate on newer plans. Up to 12GB of your UK data abroad, and hotspot use isn't allowed. | Three Go Roam passes ↗checked 10 Sept 2026 |
| iD Mobile | Check iD Mobile's roaming page for Indonesia | iD sells Roam Beyond data passes for some destinations outside Europe. We couldn't confirm which applies here, so check before you rely on it. | iD Mobile roaming guidance ↗checked 25 Aug 2026 |
| Sky Mobile | Check Sky's destination list for Indonesia | Roaming Passport Plus costs £2 on each day you use it in the destinations Sky covers. We couldn't confirm this one. | Sky Roaming Passport Plus ↗checked 25 Aug 2026 |
| giffgaff | Check giffgaff's roaming page for Indonesia | giffgaff sells fixed-price travel data add-ons for some destinations outside the EU. Buy one before you use any data, because standard roaming rates apply without it. | giffgaff roaming checker ↗checked 25 Aug 2026 |
| SMARTY | Outside the EU, you need an out-of-plan add-on | SMARTY charges roaming outside the EU from an out-of-plan add-on balance, at the rates in its price guide. Plan on Wi-Fi or an eSIM for data. | SMARTY roaming guidance ↗checked 25 Aug 2026 |
| VOXI | Check whether Indonesia is on VOXI's Global Roaming Extra list | VOXI sells 8- and 15-day Global Roaming Extra passes for listed destinations. Elsewhere it charges by the megabyte. | VOXI roaming guidance ↗checked 25 Aug 2026 |
| Tesco Mobile | Check Tesco Mobile's roaming charges for Indonesia | Outside its Home From Home destinations, Tesco Mobile charges roaming by the megabyte. Pay-monthly charges and spend safeguards depend on your tariff. | Tesco Mobile roaming checker ↗checked 25 Aug 2026 |
Roaming versus an eSIM, priced for a real trip
Everyday use is about 0.8GB a day, so a week needs 6GB and a fortnight 12GB. Roaming figures come from the same published charges the calculator uses; eSIM figures are the cheapest single plan from each provider that covers the trip, live from Nomad. Klook is left out because it shows prices only on its own page.
7 days · plan for 6GB
UK roaming
- EE£30.00
- Three£30.00
- O2£49.00speed capped at 2Mbps
Travel eSIM
- Nomad · 10GB · 30 days≈ £13.87live price, converted from USD · see plan ↗
14 days · plan for 12GB
UK roaming
- EE£50.00
- Three£60.00
- O2£98.00speed capped at 2Mbps
Travel eSIM
- Nomad · 20GB · 45 days≈ £24.09live price, converted from USD · see plan ↗
Roaming figures assume you roam every day of the trip and the pass or daily fee covers your data need; the calculator above lets you change both. Nomad prices are converted from US dollars at a rounded rate and marked as estimates.
The eSIM providers we compare for Indonesia
Four providers appear in the comparison above. Saily and Nomad send us live prices, Airalo's are checked by hand, and Klook shows its prices only on its own page. Links we could earn a commission on are marked as sponsored in the page source.
Saily on local partner networks
Quotes real pounds, so the price you see is the price you pay. Saily says it doesn't restrict hotspot use, though your phone or the local network may.
Watch out: Check when the plan starts counting down before you install it.
Saily Indonesia plans ↗We may earn a commission on this link.
Nomad on Telkomsel
Prices in US dollars, which we convert at a rounded Bank of England rate, so your card may charge a little more. Nomad lists Telkomsel for Indonesia and says its eSIMs support hotspot use.
Watch out: Nomad plans have to be activated within 60 days of purchase, so don't buy months ahead.
Nomad Indonesia plans ↗We may earn a commission on this link.
Airalo on 3 (Indosat Ooredoo Hutchison)
We have no affiliate relationship with Airalo and list it anyway. Its Indonesia eSIM lists 3 (Indosat Ooredoo Hutchison) as the main network.
Watch out: If you pick an unlimited plan, check its daily full-speed limit before you buy.
Klook on the network named on Klook's page
Klook's price changes with every combination of days and data, so we don't show one. The link opens Klook's own page for this country.
Watch out: You get a QR code on a voucher. Install it on Wi-Fi before you travel and check when the countdown starts.
Klook Indonesia plans ↗We may earn a commission on this link.
What UK networks charge in Indonesia
EE puts Indonesia in Rest of World Zone 1, with passes at £6 for 24 hours, £30 for 7 days and £50 for 15. O2 Travel is £7 a day with unlimited data at 2Mbps, and Three sells Go Roam Around the World passes at £12.50 for 3 days, £30 for 7 and £60 for 14.
A fortnight in Bali costs £50 to £98 on those. The worked costs below compare them with live eSIM prices.
Indonesia's phone registration rule, and why an eSIM avoids it
Indonesia requires phones used on its networks with a local SIM to be registered by their IMEI number. If you buy a tourist SIM at the airport or an official shop, the seller registers your phone for 90 days. Stays longer than that need registering at customs, and phones worth more than US$500 are taxed on the excess.
A UK SIM or a travel eSIM connects to Indonesian networks as a roaming visitor, and roaming phones don't need registering. For a normal holiday, an eSIM means no paperwork at all.
Getting around Bali and the islands
Grab and Gojek are how most visitors get around Bali and order food, and both need data. WhatsApp is widely used by drivers, villas and tour operators.
Coverage is strong in south Bali and Ubud. On smaller islands and on boats between them it's patchier, so download offline maps and ferry tickets before you set off.
Setting up for Indonesia
- 01Buy and install at home
Install the eSIM on home Wi-Fi before you travel and keep the new line switched off until you land. Save the QR code or setup details in case you need to reinstall.
- 02Turn off data roaming on your UK line
Leave your UK SIM on so calls and bank texts still reach you, but switch its data roaming off so it can't run up charges.
- 03Make the eSIM your data line
Set the eSIM as the line for mobile data, turn off automatic data switching, and turn on data roaming for the eSIM only.
Indonesia questions, answered
Do I need to register my phone's IMEI in Indonesia if I use an eSIM?
No. Roaming visitors on a foreign SIM or travel eSIM don't need to register. The rule applies to phones used with a local Indonesian SIM.
What happens if I buy a tourist SIM in Bali?
The seller registers your phone for 90 days using your passport. For stays longer than 90 days, you need to register at customs, and phones worth over US$500 are taxed.
Do UK networks charge for roaming in Indonesia?
Yes. EE's passes start at £6 for 24 hours, O2 Travel is £7 a day at 2Mbps, and Three's passes start at £12.50 for 3 days.
Do Grab and Gojek work with a data-only eSIM?
Yes. Both work over any data connection, and your accounts can stay linked to your UK number.
Does an Indonesia travel eSIM include a local number?
The plans compared here are data only, so there's no Indonesian number. WhatsApp works over data, and your UK SIM can stay on for texts.
Where the numbers come from
How we work this out.
On EE we price roaming for all 20 destinations. Across the other nine networks we price 116 more network-and-destination combinations from published charges; everywhere else we send you to your network's own checker instead of guessing. Saily and Nomad send us their prices directly, covering 20 destinations. Airalo prices are checked by hand for 5 of them and stop being ranked a week after we last looked. Klook never shows a price here — we send you to their own page instead of guessing one.
UK roaming rules 25 Aug 2026 · review overdueHand-checked prices & calls/texts labels 25 Aug 2026 · review overdueExchange rates (rounded) 25 Aug 2026 · review overduePrice refresh rule 7 days, then removed from rankingLive prices from Saily and Nomad working · 20 destinations
Setting up before you fly
Keep your UK number. Turn off its data.
- 01Install at home
Buy before departure, install on Wi-Fi and keep the new line switched off until arrival.
- 02Choose the data line
Set the travel eSIM as Mobile Data and disable data switching so your UK SIM cannot take over.
- 03Keep texts available
Leave the UK line on for banking texts if needed, but turn off its data roaming and avoid chargeable calls.
Common questions
Things worth checking first.
Do you work out what my own network would charge?
On EE, for all 20 destinations. Across the other nine networks, for 116 more network-and-destination combinations. Everywhere else we send you to your network’s own checker rather than invent a number — usually because the network has stopped publishing a rate, or prices it against your individual account. Pick the tariff that applies to you and we work out the daily fees, the cheapest combination of passes, or the per-megabyte rate from your network’s published charges. We only claim a saving when roaming would actually cover your whole trip and everything else you asked for.
Are these prices live?
Saily’s and Nomad’s are — they come from each provider’s own feed and are marked “Live price”. Saily quotes real pounds; Nomad quotes US dollars, which we convert. Airalo prices are checked by hand, show the date we checked, and drop out of the ranking after seven days. They are already in pounds, so they need no conversion. Klook never shows a price here, because we cannot read one reliably; that link takes you to their own page.
Why does one provider show several plans?
Because more than one can fit your trip — a bigger allowance, a longer run before it expires, or unlimited data. We show each provider’s best few for your trip and tuck the rest — including any that cost more without giving you more — behind one “show more” button. Pin up to three to compare side by side.
Where do I find hotspot and speed limits?
Open “Hotspot, speed & other limits” on any plan. It covers whether you can use the phone as a hotspot, what happens when you hit a speed cap, what the fair-use rules are, when the plan starts counting down, and which local network you will be on. If it says “check plan”, the provider’s own wording was not clear enough for us to promise you either way.
Can I make normal calls on these?
Usually not. Most travel eSIMs give you data only — WhatsApp and FaceTime work, but your phone number does not. If you need real calls and texts, answer “Yes” in the form and we will only recommend a plan that we have confirmed includes them.
Will an eSIM work on my phone?
Search for your exact model and we will check it against manufacturer guidance. Two things we cannot check for you: whether your phone is locked to a UK network, and which regional version you own — some models sold in certain countries have no eSIM at all. Confirm both before buying.
How many destinations do you cover?
20 destinations — Turkey, United States, Spain, France, Italy, Greece, Portugal, Germany, Netherlands, Ireland, Cyprus, United Arab Emirates, Thailand, Japan, Australia, Canada, Mexico, Morocco, Egypt, Indonesia — and all 10 UK networks. Saily and Nomad price every destination live; 5 of them also carry hand-checked Airalo prices.