Every rating on slirnba is earned — not sponsored. Our team physically tests SIM cards across Singapore's MRT lines, CBD, and heartland estates, measuring real-world data speeds, call clarity, and customer service response times.
Scores are triangulated with verified subscriber submissions, ensuring our verdicts reflect everyday users — not just lab conditions. We cover all four MNOs and every licensed MVNO operating in Singapore.
* Composite score based on speed, coverage, value & support.
Independent editorial verdicts on all six major carriers. We assess coverage, value, and customer experience so you can choose with confidence.

Singapore's Largest Network
Singtel remains the gold standard for mobile coverage in Singapore, offering the widest 5G footprint and most reliable signal in both urban centres and suburban zones. Its premium pricing reflects a genuine quality gap — enterprise and frequent traveller plans stand out, with excellent international roaming deals. Customer service has improved markedly, and their app-based top-up experience is slick. For users who demand bulletproof connectivity above all else, Singtel is the default choice, though budget-conscious subscribers may find comparable day-to-day performance at a lower cost with newer MVNOs.
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Entertainment Meets Connectivity
StarHub strikes a compelling balance between network quality and value, particularly for households that bundle mobile with broadband and cable TV. Coverage is strong across the island, with 5G now reaching most residential and commercial zones. Plans are competitively priced against Singtel, and the rewards ecosystem — including StarHub Rewards points and entertainment bundles — adds real recurring value. Customer service remains a weak point in some reviews, with longer hold times reported. Still, for the connected household looking for a one-stop telecommunications partner, StarHub is a very strong contender with improving fundamentals.
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Straightforward Plans, Solid Performance
M1 has carved out a loyal following by offering transparent, no-frills mobile plans that deliver consistent performance without the complexity of bundled add-ons. Now part of the Keppel group, M1 has invested steadily in 5G rollout, with coverage solid in core urban zones. Pricing sits in the mid-tier — more affordable than Singtel, competitive with StarHub. Data top-up options are flexible and easy to manage via the app. International roaming is serviceable but lacks the breadth of Singtel's pass system. Recommended for individuals and small businesses wanting reliable, honest value without premium pricing or entertainment bundle lock-ins.
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Digital-First, No Hidden Fees
GOMO, Singtel's digital MVNO, offers a refreshingly honest mobile experience targeted squarely at digital natives. Operating on Singtel's infrastructure means coverage parity with the parent network — a major advantage. Plans are ultra-simple: one flat monthly fee, no contracts, data rollover included. There are no physical stores, which is a feature not a bug if you're comfortable managing everything via app. Top-up and plan changes take under a minute. The trade-off is limited customer support options — chat-only, with occasional lag. For price-savvy, self-sufficient smartphone users who want Singtel-quality coverage without Singtel pricing, GOMO is the clear recommendation.
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Customise Everything, Pay for What You Use
Circles.Life pioneered the customisable mobile plan in Singapore and remains the most flexible option for users who want to tune exactly how much data, talk time, and extras they pay for. Running on M1's network, coverage is reliable across core areas. The platform's boldest feature — BYO (Build Your Own) plan — lets you mix and match allowances in ways traditional operators don't support. Marketing is aggressive and can feel gimmicky, but the core product delivers. Customer service is digital-only and reviews are polarised. Best suited to tech-savvy users who want maximum flexibility and don't mind occasional app friction.
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Australia-Backed, Budget-Friendly
TPG is Singapore's fourth licensed MNO, operating its own independent network infrastructure — a meaningful distinction from MVNOs. Coverage has expanded significantly since launch but still lags the big three in suburban depth and building penetration. Where TPG wins decisively is price: data allowances per dollar are the highest in the market, making it an attractive first choice for budget-conscious users or secondary SIMs. 5G rollout is ongoing but not yet island-wide. Customer service is basic. Recommended as a primary SIM for budget subscribers in urban areas, or as a secondary data SIM for deal-hunters who prioritise price above all else.
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Ratings are based on independent testing, user feedback aggregation, and editorial assessment as of Q2 2025. See our full methodology →
Unfiltered, first-hand reviews submitted by slirnba readers. Find out what real users think about their carrier before you commit.
TechSavvyTan
12 Jun 2025
Singtel's 5G coverage in the CBD is genuinely impressive. I stream 4K video on my commute without a single buffer. Customer service was responsive when I had a billing query — resolved within the hour via live chat. Worth the premium price if you're in a coverage-heavy zone.
BudgetBeeLinh
08 Jun 2025
Switched to GOMO six months ago and haven't looked back. The app-based top-up is seamless and the data rollover feature is a huge bonus. Coverage occasionally dips in certain MRT tunnels but that's a minor gripe. Excellent value for money — easily the best budget option in Singapore right now.
DataHeavyDerek
03 Jun 2025
StarHub's network is solid in most residential areas but I've noticed slowdowns during peak evening hours in Jurong. Their new app is a big improvement over the old portal. Mid-tier pricing but the perks like HBO access add some value. Would like to see better transparency on fair-usage throttling.
NomadNabilah
28 May 2025
Used M1's roaming add-on across Japan and Thailand — absolutely flawless. Competitive daily rates and the connection quality matched local SIM speeds. Activating and deactivating via the M1 app is straightforward. This is how roaming should work. Will definitely continue using M1 for my travel needs.
FrugalFelixTan
22 May 2025
Circles.Life's modular approach suits my usage perfectly. I only pay for what I need and the data boosters are reasonably priced. The onboarding was entirely digital — SIM arrived in two days. Support via the app can be slow on weekends, but the chatbot handles most routine issues well.
EnterpriseElla
15 May 2025
TPG's unlimited plan sounds great on paper but throttling kicks in aggressively after about 5GB of heavy use. Indoor coverage in my Toa Payoh flat is inconsistent — I often have to move to the window for a stable connection. Customer service email responses take 2–3 business days. Needs significant improvement.
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All reviews are submitted voluntarily by slirnba community members. slirnba does not edit or verify individual submissions. Reviews reflect personal opinions only.
Compare all major Singapore telcos and MVNOs across network technology, coverage, data speeds, minimum top-up requirements, and customer service — all in one place. Data updated Q2 2025.
| Attribute | SingtelBest Coverage | StarHubBest Value | M1 | TPG TelecomLowest Top-Up | MVNE (Circles.Life)Most Flexible | Zero Mobile |
|---|---|---|---|---|---|---|
Network | 4G / 5G | 4G / 5G | 4G / 5G | 4G | 4G / 5G | 4G |
Coverage | 4.8 | 4.5 | 4.3 | 3.8 | 4.2 | 3.6 |
Avg. Data Speed | 320 Mbps | 280 Mbps | 260 Mbps | 190 Mbps | 255 Mbps | 165 Mbps |
Min. Top-Up | S$10 | S$10 | S$10 | S$5 | S$10 | S$5 |
Customer Service | 4.5 / 5 | 4.2 / 5 | 4.3 / 5 | 3.7 / 5 | 4.0 / 5 | 3.5 / 5 |
* Scores based on aggregated user reviews, IMDA reports, and independent speed tests (Q2 2025). Data may vary by location and device.
How to top up any operatorYour complete guide to mobile top-ups & operators in Singapore — honest reviews, step-by-step methods, and the latest telco insights.
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