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Aisha
03 March 2026
M1 roaming allows Singapore users to stay connected overseas using their existing mobile number, without changing SIM cards or losing access to mobile data. As one of Singapore’s leading telecom providers, M1 offers international roaming plans for both prepaid and postpaid customers, covering popular destinations across Asia, Europe and other global regions.
Whether you are travelling for business or leisure, this guide explains how M1 international roaming works, current roaming charges, supported countries, data bundle options, and how to activate roaming before departure. You will also learn how M1 roaming compares to travel eSIM alternatives for cheaper data abroad.
M1 roaming is an international roaming service that allows you to use your Singapore mobile number for calls, SMS and mobile data while travelling abroad. There is no need to switch SIM cards, as your existing M1 plan connects to partner networks overseas.
As one of Singapore’s major telecom operators, M1 provides international roaming in more than 230 destinations worldwide. Coverage is enabled through agreements with global network partners, giving customers access to voice, text and data services outside Singapore.
M1 offers several roaming options depending on your plan and travel needs. These include Daily Passport for day-based data usage, Data Passport for fixed roaming bundles across selected countries, and pay as you go roaming where bundle plans are not available.
The M1 Daily Passport is a day-based roaming add-on that gives you a fixed amount of data for each 24-hour period you use your phone abroad. It covers up to 75 destinations and is available to postpaid customers via the My M1+ app.
Rates vary by destination zone. M1 groups destinations into different tiers, and the Daily Passport rate reflects which zone your destination falls into. The passport activates the first time you use data roaming in an eligible country, so it only charges on days you actually use your phone abroad.
M1 also offers a Pre-Registration feature for the Daily Passport, allowing you to set it up in advance across 75 countries with a single tap. This removes the need to manually activate it per trip.
For travellers who prefer a fixed data bundle rather than a daily charge, M1 offers Data Passports. These provide a set amount of data valid for a specific number of days, purchased in advance through the My M1+ app.
Data Passports are available for popular regional destinations and are a better option for heavier data users or longer trips where the daily passport would accumulate significant charges.
Without an active Daily or Data Passport, M1 customers can still connect in over 230 destinations via pay-as-you-go roaming. These rates are charged per KB or per MB depending on the destination, and they can add up quickly. M1 recommends activating a passport before travelling to avoid unexpected charges.
M1 offers a free Data Roaming Cap service that limits your pay-as-you-go and Daily Passport charges to a maximum of SGD 100 per billing cycle, providing a safety net against bill shock.
M1 prepaid users can access international roaming through the M1 Prepaid App, the M1 Prepaid Portal, or by dialling a USSD code on their phone. Prepaid roaming packs are available for a limited set of destinations, providing a set data allowance and call minutes for a fixed validity period.
Some M1 postpaid SIM-only plans include roaming data as a standard monthly inclusion, which can be used in up to 74 destinations without purchasing a separate add-on.
M1's roaming coverage spans over 230 destinations via partner networks. Plan-based options (Daily Passport and Data Passport) cover up to 75 and 80 destinations respectively, focusing on the most popular travel markets. Pay-as-you-go access extends this further.
Popular destinations covered include Malaysia, Indonesia, Thailand, Australia, South Korea, Japan, the United Kingdom, the United States, and most of Europe. For specific country availability, check the M1 website or the My M1+ app before your trip, as coverage lists are updated periodically.
The process differs slightly between prepaid and postpaid:
After activating a roaming option, make sure data roaming is also enabled in your phone's settings. Without this, the plan will not connect.
M1 roaming is a convenient option for keeping your Singapore number active while abroad. But for travellers primarily looking for data, a dedicated travel eSIM often offers more flexibility and predictable costs.
Consider a travel eSIM if:
A TurkSIM eSIM installs via QR code before you leave Singapore. Your M1 SIM stays active for your Singapore number, while the eSIM handles data at local rates. Most current smartphones support dual SIM (physical SIM and eSIM) simultaneously.
M1's Daily Passport is one of the better-designed roaming products in Singapore. Charge only on days you use it, up to 75 destinations, managed in the app. Clean. But 75 destinations leaves a significant gap, and the per-day model adds up quickly on longer trips.
M1 is also in transition. With the planned acquisition by SIMBA underway, some customers are already looking at alternatives for their travel connectivity.
For postpaid users: open the My M1+ app, go to the Roaming tab, and select a Daily or Data Passport. For prepaid users: activate via the M1 Prepaid App, the Prepaid Portal, or by dialling #100*8*1# on your phone. Also ensure data roaming is switched on in your phone settings before you travel.
The M1 Daily Passport is a day-based roaming add-on that gives you a fixed data allowance for each 24-hour period you use your phone abroad. It is available in up to 75 destinations and only charges you on days when you actually use data roaming. Rates vary by destination zone.
Yes. M1 offers a free Data Roaming Cap service that limits your combined Daily Passport and pay-as-you-go charges to SGD 100 per billing cycle. This provides a safety net, but heavy data users should still monitor usage via the My M1+ app.
Yes. M1 prepaid users can activate roaming through the M1 Prepaid App, Prepaid Portal, or USSD code. Prepaid roaming packs are available for a defined set of destinations. Not all M1 prepaid plan options include the same roaming features as postpaid plans.
Yes. Most modern smartphones support dual SIM (physical SIM and eSIM). Your M1 SIM stays active for your Singapore number and calls, while a TurkSIM eSIM handles your data at local rates. This avoids roaming charges while keeping your Singapore number reachable.
As of early 2026, M1 is set to be acquired by SIMBA Telecom. M1 currently operates as a subsidiary of Keppel Limited and continues to provide services independently during the transition period. Check M1's official channels for the latest updates on this development.
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