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
09 March 2026
Most Singaporeans travel within Asia first — a long weekend in Bangkok, a week in Tokyo, a family trip to Bali or a business trip to Kuala Lumpur. As one of Singapore's major telcos, Singtel covers a wide range of Asian destinations through its ReadyRoam and UnlimitedRoam plans, and understanding how these plans are structured can save you both money and frustration at the airport. This guide covers which countries fall under the Asia roaming tier, what each plan includes, how to activate before you travel, and when a dedicated travel eSIM might be the more practical choice — especially for multi-destination trips or longer stays.
Singtel's international roaming operates on a zone-based structure. For Asia travel, the key tiers are ReadyRoam Neighbours (Indonesia, Malaysia, Thailand), ReadyRoam Asia (the broader Asia zone including Japan, South Korea, China, Australia, India, Vietnam, and more), and ReadyRoam Worldwide for destinations outside these tiers.
Each plan is an add-on to your existing postpaid plan, purchased via the My Singtel app, the Singtel chatbot on singtel.com, or by calling 1688. Plans activate immediately when you land abroad — your phone switches to the local preferred partner network automatically once roaming is enabled in your device settings. Singtel's Network Lock feature (enabled by default on all ReadyRoam plans) keeps your data on preferred partner networks, reducing the risk of accidentally connecting to non-preferred operators and triggering higher charges.
All plans below are for postpaid users. Validity periods count from the activation date and run based on Singapore date and time (SGT). Plans can be pre-purchased up to 30 days before your selected start date.
*UnlimitedRoam plans are subject to Singtel's Fair Usage Policy. The first 15 GB of usage is delivered at full speed; after this threshold, speeds are reduced. Check the My Singtel app for current plan details and pricing.
**DataRoam Unlimited Daily has a fair use limit subject to change without prior notification, depending on network capacity and traffic management.
Singtel prepaid customers can access Asia roaming through the hi!DataRoam plans via the hi!App. The main option for most Asian destinations is the 7-day Asia Prepaid DataRoam (Plan B), which covers Japan, South Korea, China, Australia, India, and several other markets, providing 6 GB over 7 consecutive days. Check the hi!App for current pricing and exact country coverage before your trip.
An important note as of October 2024: hi!DataRoam packs activate immediately upon purchase. If you buy your pack at Changi Airport before boarding, the 7-day clock starts then — not when you land. For maximum value, purchase after clearing immigration at your destination.
Without any plan active, Singtel's pay-per-use data rate for roaming in most Asian countries sits at approximately SGD $25 per MB.
The ReadyRoam Asia zone is broad. Key covered destinations include Japan, South Korea, China (mainland), Australia, New Zealand, India, Hong Kong, Macau, Taiwan, Vietnam, Cambodia, Thailand, Indonesia, Malaysia, Philippines, Sri Lanka, and Myanmar (note: Myanmar data availability is subject to local conditions — verify before travel). For the complete and current destination list, always confirm via the My Singtel app before purchasing, as zone classifications can change.
Enable roaming before you fly. Go to your device settings, find Mobile Data or Cellular, and enable Data Roaming. Without this switch enabled, your Singtel plan will be active but your device won't use it.
Use the My Singtel app to monitor usage in real time. The app shows your remaining ReadyRoam data balance and any auto top-ups that have occurred. This is particularly important on longer trips where you might trigger multiple top-ups without realising it.
Understand the Asia zone priority order. If you've subscribed to both ReadyRoam Neighbours and ReadyRoam Asia, Singtel deducts data from the Neighbours plan first when you're in a Neighbour destination. Once that's exhausted, it draws from ReadyRoam Asia. This can be useful for long trips covering multiple zones.
The 15 GB fair use cap on UnlimitedRoam is real. For a solo traveller on a 10-day Japan or South Korea trip, 15 GB is plenty. For a couple sharing a hotspot, navigating intensively, and working remotely, it can be reached in under two weeks.
SMSVoiceRoam is a separate purchase. None of the data plans include calls or SMS. If you need to call local restaurants, reach emergency services, or send SMS, add the SMSVoiceRoam Asia plan before departure.
Singtel's ReadyRoam Asia plan works well for single-destination trips of one to two weeks with moderate data usage. But there are several common travel patterns where a dedicated eSIM makes more practical sense.
Multi-country itineraries are the clearest example. If your trip covers Japan plus South Korea, or Vietnam plus Cambodia plus Thailand, a single Asia-wide travel eSIM can cover the entire trip without you having to manage whether each country falls under Neighbours or Asia tier, or whether your auto top-up will carry across zones.
Longer trips beyond 14 days are another scenario. The UnlimitedRoam plans cap at 14 days. For trips of three weeks or a month — sabbaticals, extended family visits, remote work stints in Bali or Chiang Mai — a travel eSIM with a matching validity period is simpler and often cheaper at the data volumes involved.
Prepaid Singtel users planning any trip longer than 7 days face an inherent limitation: the hi!DataRoam packs only go up to 7 days in the Asia tier, and as of October 2024 they activate immediately upon purchase. For anything beyond a week, managing consecutive top-ups via the hi!App while already travelling adds unnecessary friction.
Asia is not one destination — it's a dozen different connectivity situations. Roaming in Japan means connecting to NTT Docomo or SoftBank with dense urban 5G. Roaming in Indonesia means navigating Telkomsel and Indosat Ooredoo Hutchison across a sprawling archipelago. Roaming in Vietnam means connecting through a rapidly growing 4G network in a country where travellers move constantly between Hanoi, Da Nang, and Ho Chi Minh City.
TurkSIM offers destination-specific eSIM plans for all major Asian markets (eSIM Asia), each configured to connect through the strongest available local network partnerships. For Japan that means NTT Docomo and SoftBank; for Indonesia it's Telkomsel and Indosat Ooredoo Hutchison; for Thailand it's AIS and DTAC. You're connecting as close to a local subscriber as a travel SIM can get.
The Dual-SIM setup is worth highlighting specifically for frequent Asia travellers. Keeping your Singtel physical SIM active for calls and OTPs while running a TurkSIM eSIM for data means you never have to choose between keeping your Singapore number accessible and having affordable local data rates. For anyone who travels Asia frequently for work — where banking OTPs, authentication codes, and calls from Singapore contacts cannot wait — this setup has become the standard approach.
For those on multi-destination itineraries, the alternative to buying one TurkSIM eSIM per destination is managing separate Singtel ReadyRoam add-ons across multiple zone tiers, with auto top-ups potentially triggering across each. A regional Asia eSIM from TurkSIM covers the journey without zone management, at transparent prepaid pricing set before you leave Changi.
ReadyRoam Asia covers a wide range of destinations including Japan, South Korea, China, Hong Kong, Macau, Taiwan, Australia, New Zealand, India, Vietnam, Cambodia, Philippines, and more. Indonesia, Malaysia, and Thailand are also covered but at the lower-cost ReadyRoam Neighbours tier. For the current complete list, check the My Singtel app destination selector before purchasing.
For postpaid users, ReadyRoam Neighbours (1 GB / 30 days) is the most affordable option for nearby destinations. ReadyRoam Asia (4 GB / 30 days) covers the broader Asia zone. UnlimitedRoam Asia (14 days) provides unlimited data subject to the 15 GB fair use cap. DataRoam Unlimited Daily is charged per day of use — check the My Singtel app for current prices.
Yes. ReadyRoam plans work across all their covered destinations within the validity period. If you travel from Japan to South Korea within the same 30-day ReadyRoam Asia period, your data balance carries across both countries. The plan deducts from a single pool regardless of which covered destination you're in.
When your ReadyRoam bundle is exhausted, Singtel automatically adds another bundle of the same size at the same rate, charged to your postpaid account. This continues for the remainder of the 30-day validity period. The new bundle does not extend the expiry date. Monitor usage via the My Singtel app to avoid unexpected charges.
No. All ReadyRoam, UnlimitedRoam, and DataRoam plans are data-only. If you need to make calls or send SMS on your Singtel number while abroad, add the SMSVoiceRoam Asia plan separately. Incoming calls to your Singtel number while roaming are billed at standard incoming roaming call rates.
Yes. Singtel prepaid (hi! SIM) users can access Asia roaming via the hi!DataRoam packs in the hi!App. The main option for most Asian destinations is the 7-day Asia DataRoam Pack (Plan B), providing 6 GB over 7 consecutive days. Note that as of October 2024, packs activate immediately upon purchase — buy after landing at your destination to make full use of the 7-day validity.
Yes. You can hold multiple active ReadyRoam plans simultaneously. When you're in a Neighbour destination, data is drawn from your ReadyRoam Neighbours plan first, then from ReadyRoam Asia once the Neighbours bundle is exhausted. This stacking behaviour is useful for trips that cross multiple zones.
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