Disclaimer: The prices and information presented on this page reflect a snapshot at the time of research and may change at any time without prior notice.
Aisha
07 March 2026
Indonesia is the most natural roaming destination for Singaporeans — Bali is a four-hour flight, Batam even shorter, and Jakarta is a regular business corridor. For SIMBA users, the good news is that Indonesia gets significantly more generous treatment than most international destinations: it falls in the APAC roaming zone on higher-tier plans and is even included in the main data zone on several plans, meaning your Singapore plan data is directly usable in Indonesia without touching a separate roaming bucket. The less good news is that the exact rules depend heavily on which SIMBA plan you're on, and the difference between using main data, APAC data, and pay-per-use in Indonesia can mean the difference between a worry-free Bali surf trip and an unexpectedly drained SIMBA Wallet.
SIMBA classifies Indonesia across two different roaming tiers depending on your plan. On plans from the SuperRoam $12 tier and above, Indonesia is included in the main data zone, meaning your regular Singapore plan data is directly usable there as if you were home. On the entry-level SuperRoam $10 plan, Indonesia is not part of the main data zone (only Singapore, Malaysia, and Hong Kong are). At that tier, Indonesia falls under the APAC roaming allocation instead.
Beyond the main data zone (on plans where Indonesia is included), or once you exhaust the APAC allocation (on plans where Indonesia is APAC-only), pay-per-use rates apply at SGD $4/GB billed against your SIMBA Wallet. The data usage hierarchy is always: main data zone first, then APAC, then Group A (international), then pay-per-use. In Indonesia specifically, the fact that it sits high in this hierarchy for most plans is a genuine advantage for frequent Johor-Jakarta-Bali travellers.
In Indonesia, SIMBA roams through partner networks. Telkomsel is the country's largest network by coverage and is typically the preferred roaming partner. Indosat Ooredoo (now merged with Hutchison as Indosat Ooredoo Hutchison) and XL Axiata are also present in some areas. In Bali, Jakarta, and Surabaya, coverage from any partner is reliable. In Lombok, the Gili Islands, and more rural areas of Java or Sumatra, signal availability can drop significantly regardless of which partner network your phone latches onto.
Plan specifics are available at simba.sg and subject to change. The current structure is as follows:
Confirm your specific plan's Indonesia data classification in the My SIMBA app before travel. The data zone hierarchy and inclusion rules for Indonesia were updated as recently as August 2025, so plan tiers and exact inclusions may differ from earlier versions of SIMBA's pricing structure.
Confirm Indonesia's classification on your plan. On the SuperRoam $10 plan, Indonesia is APAC-only; on $12 and above, it's in the main data zone. Check the My SIMBA app under plan details to see which zone Indonesia falls into for your specific plan before you fly.
Check your APAC data balance mid-cycle. If you've already used your APAC allocation on earlier trips (e.g. Malaysia or Thailand), what remains for Indonesia may be less than you expect. Renewing your plan cycle just before a longer Indonesia trip can give you a fresh allocation.
Top up your SIMBA Wallet as a safety net. Regardless of plan tier, top up your wallet before departing Singapore. If you exceed your included allocation in Indonesia, pay-per-use at SGD $4/GB kicks in automatically. A wallet balance of SGD $20 provides comfortable headroom for a week-long trip.
Set your APN to "internet" on landing. SIMBA's APN for roaming is "internet" (some older devices may need "TPG" instead). If data fails to connect at Ngurah Rai Airport or CGK Jakarta, go to your phone's APN settings, enter "internet" with blank username and password fields, and restart your device.
In Bali, prefer Telkomsel signal. Your phone will typically auto-connect to whichever SIMBA partner has the strongest signal. In Bali specifically, if you find coverage poor in Ubud or along the southern Kuta-Seminyak stretch, manually selecting Telkomsel (rather than leaving your phone on automatic) can improve stability.
Monitor usage in the My SIMBA app. The app shows your current balance by zone in near real-time. For trips where you'll be navigating Bali's roads (which genuinely require Google Maps given the lack of clear street signage in many areas), daily check-ins on your data balance help you avoid mid-trip surprises.
SIMBA's Indonesia coverage story is genuinely one of the better ones among Singapore telcos. For SuperRoam $12 and above users, having Indonesia in the main data zone means Bali trips can be managed entirely within your standard plan. But there are two scenarios where a travel eSIM makes more sense.
First, longer stays. Two weeks in Bali navigating between Seminyak, Ubud, Amed, and Nusa Penida while using Google Maps, uploading photos, and video calling back to Singapore will consume data at a rate that exceeds what's sensible to run through a Singapore plan cycle. A dedicated Indonesia eSIM gives you a local-rate allocation sized for the trip, separate from your SIMBA plan, without risking your monthly APAC bucket for a single holiday.
Second, destinations in Indonesia outside Bali and Jakarta. Lombok, Komodo, the Gili Islands, and Sulawesi all have less predictable signal from foreign roaming partners. Local Indonesian eSIM plans connecting directly to Telkomsel or XL Axiata as primary networks (rather than as roaming partners) typically deliver more reliable signal in those areas.
Bali is easy. Google Maps through Kuta to get to Potato Head or navigate the rice terrace paths above Tegalalang consumes data steadily. SIMBA's inclusion of Indonesia in the main data zone for $12+ plans handles this well for short trips. The travel TurkSIM eSIM case becomes compelling for anyone staying longer than a week, exploring beyond Bali and Jakarta, or travelling to islands like Komodo or the Togean Islands where roaming partner coverage thins out significantly.
The SIMBA Wallet drain remains the structural risk for any plan tier. A single day of heavy navigation and background sync in Indonesia can consume 1-2 GB. Over a 10-day Bali-Lombok itinerary with road trips, that's a meaningful chunk of any plan's allocation, and the pay-per-use overflow at SGD $4/GB adds up faster than most people expect until they see the wallet statement. A dedicated travel eSIM Indonesia sized for the trip — purchased, installed, and set as the data line before departure — keeps your SIMBA plan intact and your Indonesia data budget predictable from day one.
Yes. Indonesia including Bali is covered by SIMBA's roaming network. For SuperRoam $12 and above plans, Indonesia is in the main data zone and uses your standard plan data. For the SuperRoam $10 plan, Indonesia falls under the APAC data allocation. Once either allocation is exhausted, pay-per-use rates of SGD $4/GB apply from your SIMBA Wallet.
SIMBA roams through local partner networks in Indonesia. Telkomsel, the country's largest carrier, is typically the preferred partner and offers the broadest coverage across Bali, Java, Lombok, and other islands. Indosat Ooredoo Hutchison and XL Axiata may also be available in some areas. Your phone will auto-connect to the strongest available partner signal.
It depends on your plan. For SuperRoam $12 and above, yes, Indonesia is part of the main data zone alongside Singapore, Malaysia, and Hong Kong. For the SuperRoam $10 plan, Indonesia is included in the APAC roaming allocation instead. Check your specific plan details in the My SIMBA app.
SIMBA roaming is enabled by default on all plans. Send SMS 3 to 1218 from Singapore to confirm your roaming status before departure. Ensure data roaming is enabled in your device settings, and set your APN to "internet" if data doesn't connect after landing. Top up your SIMBA Wallet as a buffer for any pay-per-use charges.
Once your APAC or main zone data allocation is exhausted, SIMBA switches to pay-per-use at SGD $4/GB, automatically billed from your SIMBA Wallet in 10MB increments. This happens without a prompt. Keep a balance in your wallet and monitor usage via the My SIMBA app to avoid service interruptions or unexpected charges.
Yes. On dual-SIM compatible devices, you can run a travel eSIM as the data connection while keeping your SIMBA SIM active for Singapore calls and SMS. This setup prevents your SIMBA plan's data allocation from being consumed in Indonesia and eliminates the risk of Wallet deductions. Set your travel eSIM as the default data line and disable data roaming on the SIMBA SIM.
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