Top 10 Best SIM-Only Mobile Plans in Singapore with Free Data Roaming (2026 Guide)
Stop Buying Travel SIMs. Your Local Plan Should Work Everywhere.
If you live in Singapore, you travel. Whether it's a weekend food hunt in Johor Bahru, a beach escape to Batam, or the annual pilgrimage to Japan, we are a nation of flyers. But the old habit of queuing at Changi Recommends for a Wi-Fi egg or hunting for a tourist SIM in Bangkok is obsolete.
In 2026, the battle for mobile market share in Singapore has shifted from "Who has the most data?" to "Who has the best roaming?" MVNOs (Mobile Virtual Network Operators) are now bundling massive amounts of international data directly into their base plans for under $20/month. I’ve tested the speeds, checked the coverage partners, and read the fine print to bring you the top 10 best SIM-only mobile plans in Singapore that let you roam like a local.
π Quick Look: Top 3 Roaming Champions
| Telco / Plan | Monthly Cost (SGD) | Roaming Perk |
|---|---|---|
| SIMBA (Super Roam) | $10.00 | Best Overall: 10GB+ Free Roaming to 57 Destinations. |
| Circles.Life (Borderless) | ~$30.00 | Most Reliable: Data works seamlessly across SG and 8 popular countries. |
| GOMO (Neighbours Plan) | $25.00 | Best for Asia: Includes data for Malaysia, Indonesia, and Thailand. |
1. SIMBA (formerly TPG) – The "Super Roam" Plans
SIMBA changed the game. They are the reason every other telco is scrambling to offer roaming. Their entry-level plans include free roaming data to over 57 destinations. It’s not a promotion; it’s a standard feature. While their local voice quality (VoLTE) used to be spotty, it has improved significantly in 2026.
- Data Allowance: Usually 100GB Local + 10GB International Roaming.
- Best For: The budget traveler who visits multiple different countries.
- Pro Tip: In Malaysia, SIMBA roams on Celcom, which has excellent coverage even in rural areas.
2. Circles.Life – The "Borderless" Plan
Circles.Life realized that people hate switching SIM cards. Their "Borderless" tier treats data in Singapore the same as data in Japan, Taiwan, or Australia. You don't have separate "roaming" quotas; you just have one massive data pool to use wherever you are.
- Cost: Slightly premium (approx. $30/month), but cheaper than buying travel SIMs.
- Best For: Business travelers and digital nomads who want zero hassle.
3. GOMO by Singtel – 5G with "Neighbours"
Backed by Singtel’s robust network, GOMO is the reliable choice. Their specialized plans often bundle roaming specifically for our closest neighbors (Malaysia, Indonesia, Thailand). If you spend your weekends in JB or Batam, this is the most stable connection you can get.
- Key Feature: Data Rollover. If you don't use your data this month, it stacks up.
- Roaming: Usually includes 1GB to 5GB for Asia-Pacific destinations.
4. giga! (StarHub Network)
giga! is famous for its customer service and app experience. While their base plans don't always include global roaming, they frequently offer "gigaRoam" packs as monthly loyalty gifts. Furthermore, their "Jetset" pass is one of the cheapest add-ons in the market if you need more.
- Best For: Students and heavy social media users (rollover data is huge here).
- Network: Runs on StarHub’s 5G SA network.
5. M1 SIM-Only – The "True 5G" Choice
M1 has been aggressive with their "Bespoke" SIM-only plans. They often include a "roaming data passport" allowance for specific countries. M1 is particularly strong if you travel to other countries where they have partnerships, allowing you to use your local data bundle abroad for a small subscription fee.
- Cost: Variable (Customize your plan slider).
- Best For: Users who want full control over their plan limits.
6. Eight – The New Challenger
As one of the newer entrants in the market, Eight competes directly with SIMBA on price. Their plans are stripped-back and simple, often including a flat roaming allowance for Malaysia and Indonesia to attract the weekend crowd.
- Cost: extremely low (often under $10 during promos).
- Coverage: Excellent value for JB trips, but global reach is smaller than SIMBA.
7. MyRepublic Mobile – "Boundless" Data
MyRepublic uses the StarHub network (and sometimes M1 depending on the plan tier). Their "Ex" plans often come with a throttling feature rather than a hard cut-off. While roaming isn't always free on the cheapest tier, their mid-tier plans include data for Malaysia and Indonesia.
- Pro Tip: Look out for their "Power" plans which bundle broadband and mobile for discounts.
8. CMLink (China Mobile Singapore)
If you travel to Mainland China or Hong Kong, CMLink is unbeatable. They allow you to share your data across Singapore, Mainland China, and Hong Kong without extra fees. It effectively bypasses many of the connectivity headaches travelers face in China.
- Best For: Expats and business travelers focusing on the Greater China region.
- Bonus: Includes free IDD calls to China.
9. Zym Mobile – The Value Reseller
Zym sits on the Singtel network but charges a fraction of the price. They are a "no-frills" carrier. Their Roam Plus plans are gaining popularity because they offer Singtel-quality coverage in JB (via Maxis/Celcom) bundled into the monthly fee.
- Cost: ~$10 - $18/month.
- Best For: Singtel coverage on a shoestring budget.
10. StarHub Star Plan (No Contract)
StarHub finally revamped their SIM-only offering to compete with the MVNOs. The Star Plan removes the 2-year lock-in. While slightly more expensive than SIMBA, it gives you access to "DataTravel" rates which are very competitive, and some tiers include a small monthly roaming allowance.
- Reliability: Tier 1 network priority (unlike some MVNOs which get deprioritized during congestion).
π‘ Frequently Asked Questions (FAQ)
Q: Is SIMBA's reception good enough for daily use in 2026?
A: Yes. In the early days (as TPG), they had "dead zones" in underground MRT tunnels. However, in 2026, their 4G and 5G coverage is 99% comparable to the big three telcos above ground, and significantly improved underground.
Q: Can I keep my existing mobile number if I switch?
A: Absolutely. This is called "Porting." When you sign up for a new plan (e.g., GOMO), you simply select "Port-in existing number" during checkout. Do not cancel your old line yourself; the new telco will do it for you to ensure you don't lose the number.
Q: Do these plans cover roaming in Europe or USA?
A: SIMBA and Circles.Life (Borderless) usually do. SIMBA covers 57+ destinations including the UK, USA, and parts of Europe. Most other budget plans (like GOMO or Eight) focus specifically on Asia-Pacific (Malaysia, Thailand, Indonesia).
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