Quick answer: For a solid network coast-to-coast, Singtel and StarHub lead the pack. M1 offers fast 5G rollouts, while digital-only brands like GOMO and Circles.Life give you big data without contracts. If you travel to Malaysia often, redONE’s roaming rates are hard to beat. We’ve listed seven plans worth your time, from no-frills to full-featured.
Most people overpay for data they never touch or roam on a plan that makes no sense for their weekend. The real decision is simple: are you mostly in Singapore, or do you cross the border every few weeks? Match that to the right card and the rest sorts itself out. Here’s what each setup is good for.
Best Phones & Computers in Singapore holds 64 guides in this category, if you want to see what else is out there.
Singtel
Singtel runs on a network that rarely drops the ball—if you rely on your phone for work, this is the one. Their postpaid plans come with solid 5G and plenty of data, but the hi!Tourist SIMs are the real surprise for locals who just want a clean, no-commitment top-up: $12 gets you 100GB for 14 days, $50 stretches to 120GB over 28 days on 5G. Grab one at Changi Airport, 7-Eleven, or any Travelex counter.
If you want to stream video during your commute without buffering, or you just need your calls to go through first time, every time, this is the way to go.
- Address: 31 Exeter Road, #01-01, Comcentre, Singapore 239978
- Phone: +65 6838 3388
- Hours: 24/7 customer support
- Website: singtel.com
If you want a line that just works without any drama, this is the one. The postpaid side suits people who use their phone for work all day. For short stays or visitors who want a clean, no-commitment SIM, the tourist packs are sold all over Changi and convenience stores—swee, no need to hunt.
StarHub
StarHub’s prepaid options offer a lot of bandwidth for your dollar, especially if you bounce between Singapore and a few other countries. The $50 Happy Travel Prepaid SIM gives you 120GB of local data and 5GB of roaming across 17 destinations—handy if you cross the Causeway or head to Bangkok for the weekend.
Young professionals who want to keep costs predictable without skimping on speed will feel right at home here. Everything from top-ups to plan changes happens in the StarHub app, so you spend less time in a queue.
- Address: 67 Ubi Avenue 1, #05-01, StarHub Green, Singapore 408942
- Phone: +65 6820 1633
- Hours: 24/7 customer support
- Website: starhub.com
This is our own selection, not a paid one. Tell us if there is somewhere we should have included.
The prepaid roaming setup makes sense if your calendar regularly shows Johor or Bangkok. You pay once and get a solid block of local data plus a roaming allowance across quite a few countries. Young professionals who want one bill and predictable charges will feel at home here.
M1
M1 got 5G out early, and it shows. Their $14 prepaid plan gives you a full 100GB for a whole month, and if you need to yap on the phone, the $12 plan throws in 5,000 minutes of talk time—old-school, but shiok for the chatty ones.
Anyone who wants a fast connection and a generous call allowance without a long-term contract will find M1 hard to pass up. They also do eSIMs, so switching is quick if you prefer not to fiddle with plastic.
- Address: 10 International Business Park, Singapore 609928
- Phone: +65 6680 1627
- Hours: 24/7 customer support
- Website: m1.com.sg
If you are looking for a tourist-friendly option, our guide on Tourist SIM Cards in Singapore for Effortless Connectivity walks through several good picks.
They were early with 5G and the prepaid packs reflect that—generous data and talk time for a pretty lean price. The $12 plan with 5,000 minutes is old-school but extra shiok for uncles and aunties who prefer a long call over texting. eSIM support means you can activate without stepping into a store.
GOMO
GOMO is for the crowd that hates queues and contracts. Built on Singtel’s backbone, their $25 plan gives you 200GB of 5G data every month—manage everything from your phone, and if something goes wrong, it’s live chat, not a trip to a store. No frills, no fuss.
Busy people who value their time and want a month-by-month deal that just works will appreciate the simplicity. There are no physical stores, so everything from sign-up to cancellation happens online.
- Phone: +65 6838 3388 (via Singtel support)
- Email: [email protected]
- Website: gomo.sg
No physical store, no contract, no queue—this one is built for people who would rather sort everything on their phone while queuing for kopi. It rides on Singtel’s network, so coverage is solid. The $25 plan gives you a big 200GB monthly block. If anything goes wrong, live chat handles it.
Circles.Life
Circles.Life turned the telco game upside down with a no-contract plan that hands you 650GB for the first three months for $18. The app dangles data bonuses and bill waivers, so it feels like they’re rewarding you for staying. They’ve got over 100 retail spots if you need a physical SIM.
Data-heavy users who love a good deal and get a kick out of unlocking perks through the app will find this plan incredibly satisfying. If the network is busy you might notice a dip in speed, but for daily scroll and streaming it holds up fine.
- Address: 10 International Business Park, Singapore 609928
- Phone: +65 6717 1680
- Hours: 24/7 customer support
- Website: circles.life
The first three months dump a massive 650GB on you, which feels like a proper welcome. After that, the app keeps dangling bonuses and waivers, so there’s always a small win waiting. Data-heavy users who enjoy unlocking perks will find it satisfying. Over 100 retail spots if you need a physical SIM.
MyRepublic
MyRepublic started with broadband and then brought that speed obsession to mobile. Their $10 plan packs 100GB, which is plenty for daily scroll. If you’re already using their fibre at home, the whole setup runs smoothly.
Light-to-moderate users who want a reliable, cheap plan and might care about home internet too will find this a no-brainer. The price point is hard to walk past, and the bandwidth is ample for everything except heavy 4K streaming.
- Address: 11 Lorong 3 Toa Payoh, #04-11/15, Jackson Square, Singapore 319579
- Phone: +65 6717 1680
- Hours: 24/7 customer support
- Website: mobile.myrepublic.com.sg
They brought their broadband speed mindset to mobile and landed at a price point that is very hard to walk past. 100GB for daily scroll is plenty for light-to-moderate users. If you already have their fibre at home, the whole thing runs as one tidy setup.
redONE
redONE is the obvious pick if your week often involves a JB trip. The $10.90 plan nets you 200GB of local data and 5GB of roaming in Malaysia and Thailand—and calls to other redONE numbers are free. It’s budget-friendly, and the 1App keeps top-ups simple.
Frequent cross-border travellers who want to save money and stay connected on both sides of the border will wonder why they didn’t switch sooner.
- Address: 140 Paya Lebar Road, #06-04, Singapore 409015
- Phone: +65 8756 8756
- Hours: Mon–Fri 9am–5pm, Sat 9am–12pm
- Website: redonemobile.com.sg
This is our own selection, not a paid one. Tell us if there is somewhere we should have included.
For a broader look at mobile options, you might also like our piece on Elite Mobile SIM Cards in Singapore.
How to choose
Start by asking where you spend your day. If your office or home sits in a spot known for patchy reception, a main telco like Singtel or StarHub is usually a safer bet—their towers blanket the island. MVNOs such as GOMO or Circles.Life lease these networks, so coverage is mostly identical, but network priority can differ during peak hours. If you live on the go and never want to worry about a dead zone, choosing the network first makes sense.
Data appetite matters too. A $10 plan with 100GB from MyRepublic is fine for maps, messaging and the occasional video; if you stream Netflix on your commute and tether a laptop, the $25 GOMO plan with 200GB or the pumped-up Circles.Life offer gives you more room to breathe.
For anyone crossing into Malaysia regularly, roaming cost flips the decision. redONE builds roaming data into its base price. StarHub also includes a solid roaming allowance on its $50 prepaid SIM. A price range of $10–$25 a month covers most SIM-only needs; prepaid tourist-style SIMs sit between $12 and $50 depending on duration and gigabytes. If you prefer not to sign anything, stick to the no-contract digital brands—they let you walk away any month.
Comparison
| Provider | Plan Type | Data Allowance | Roaming | Price Signal | Best For |
|---|---|---|---|---|---|
| Singtel | Prepaid / Postpaid | 100GB (14 days) or 120GB (28 days, 5G) | Check with business | $12–$50 | Rock-solid coverage, heavy streaming |
| StarHub | Prepaid | 100GB (14 days) or 120GB (30 days) | 5GB across 17 countries | $12–$50 | Value roaming, bundled perks |
| M1 | Prepaid | 84GB (4 weeks) or 100GB (30 days) | Check with business | $12–$14 | Generous talk time, fast 5G |
| GOMO | No-contract SIM-only | 200GB (5G) | Check with business | $25/mth | No contract, digital simplicity |
| Circles.Life | No-contract SIM-only | 650GB (first 3 months, then 500GB) | Add-on available | $18/mth | Maximum data, app-based rewards |
| MyRepublic | SIM-only | 100GB | Check with business | $10/mth | Budget-friendly, light use |
| redONE | Postpaid | 200GB local + 5GB roaming | Malaysia & Thailand included | $10.90/mth | Frequent cross-border travellers |
Summary
Whether you need big data on the cheap, rock-solid coverage, or a plan that follows you across borders, Singapore’s SIM card market has an option. Go with Singtel or StarHub for blanket coverage; pick GOMO or Circles.Life if contracts give you the ick. And if JB runs are part of your regular routine, redONE’s cross-border data is a serious money saver.
All details were accurate at the time of writing. Plans and prices can change, so confirm directly with the provider before signing up.
Frequently asked questions
If a JB trip is on your agenda this week, this plan is the obvious pick. You get a generous local data block and a roaming allowance covering Malaysia and Thailand, plus free calls to other redONE numbers. Budget-friendly and practical for cross-border regulars who want to stay connected on both sides without paying twice.
Which SIM card has the best coverage in Singapore?
Singtel and StarHub have the most extensive networks, built over decades. If you want consistent signal in underground carparks or far corners of the island, either is a safe bet.
What is the cheapest SIM-only plan for heavy data users?
GOMO’s $25 monthly plan offers 200GB of 5G data, and Circles.Life’s $18 plan gives 650GB for the first three months before settling at 500GB. Both run on major networks with no lock-in.
Can I get a SIM card without a contract?
Yes—GOMO, Circles.Life, and MyRepublic all offer month-to-month SIM-only plans. They are fully digital, so you sign up online and cancel anytime.
Do any plans include free roaming to Malaysia?
redONE’s $10.90 plan includes 5GB of roaming data in Malaysia and Thailand. StarHub’s $50 Happy Travel Prepaid SIM also comes with 5GB of roaming across 17 destinations.
Where can I buy a prepaid SIM as a tourist arriving at Changi Airport?
Singtel hi!Tourist SIMs are sold at Travelex and UOB Currency Exchange counters. StarHub prepaid SIMs are available at UOB Currency Exchange and Travellers Counters. M1 prepaid SIMs are also available at the airport.
How does an MVNO differ from a main telco?
An MVNO like GOMO, Circles.Life, or redONE leases network capacity from a major telco such as Singtel, StarHub, or M1. Coverage is mostly the same, though data speeds may be deprioritised slightly during peak periods.
