By The Big Buy desk · Last verified 4 October 2026
The cheapest mobile plan in Singapore is usually a no-contract SIM-only plan. Comparison listings in October 2026 show budget plans from about S$7 to S$11 a month with hundreds of gigabytes of local data, while the big three telcos’ own SIM-only plans typically start around S$10 to S$15. Singapore has four mobile network operators – Singtel, StarHub, M1 and SIMBA – and the many cheaper brands (MVNOs) run on their networks. A phone contract is capped at 24 months by the regulator, and any early termination charge must fall month by month as you serve out the term. A contract is worth it only if the phone discount beats the higher monthly bill.
Good news: switching is easier and cheaper than it used to be. Here is how to choose without a spreadsheet headache.
Quick facts
- Four network operators: Singtel, StarHub, M1 and SIMBA.
- MVNOs (virtual operators) rent capacity on those networks and often undercut them on price.
- Budget no-contract SIM-only plans start around S$7 to S$11 a month in October 2026 listings.
- Contracts cannot run longer than 24 months (an IMDA rule since 1 March 2010).
- Early termination charges must decrease month by month and exclude costs the telco no longer incurs.
- You can usually keep your number when you switch; the new provider handles the port.
Which plan type suits you?
| Plan type | How it works | Best for | Watch out for |
|---|---|---|---|
| Prepaid | Top up as you go; packs expire, often after 30 days | Visitors, children’s first phone, backup lines | Expiry dates and registration with NRIC or passport |
| SIM-only, no contract | Monthly bill, cancel any month | Anyone who already owns a phone | Promotional prices that rise after the first few months |
| SIM-only, 12-month | A lower monthly price for a commitment | Stable users who want a perk or discount | Early termination charge if you leave |
| 24-month contract with phone | Phone discounted upfront, cost recovered in the monthly bill | People who want the latest phone with little cash upfront | Paying for data you never use; the price after the contract ends |
Are the cheaper networks any good?
An MVNO uses the same towers as its host network, so coverage is largely the host’s coverage. The differences are in the extras: customer service channels, roaming add-ons, 5G access and whether there is a shop to walk into. The market is also moving. StarHub announced in August 2026 that MyRepublic’s 4G subscribers would move onto StarHub’s network, and the proposed sale of M1 to SIMBA’s owner was terminated in May 2026 after the regulator halted its review. If your provider changes hands or networks, your plan terms still bind them until you are told otherwise in writing.
Contract or SIM-only? A worked comparison
These are illustrative figures; plug in the real quotes you receive. Say a phone costs S$1,500 outright and a SIM-only plan is S$15 a month: over 24 months you pay S$1,500 + (24 × S$15) = S$1,860. A contract offers the same phone for S$300 upfront on a S$65 plan: S$300 + (24 × S$65) = S$1,860. Equal. The contract only wins if its total is lower, so always do the sum: upfront payment, plus months × monthly fee, plus any admin or activation charges.
- Check your real usage in your phone’s settings for the last three months.
- Compare the all-in total over 24 months, not the monthly headline.
- Read what happens when a promotional price ends.
- Check roaming add-ons if you travel often.
- When a contract ends, move to SIM-only or recontract; do not stay on an expensive plan by default.
The WahLiao Verdict
If your phone works, keep it and move to a no-contract SIM-only plan; for most households that is the easiest saving of the year. Buy your next phone outright or on an instalment you control, and use a contract only when the 24-month sum says it is cheaper. Set a calendar reminder for the month your contract ends. Loyalty is lovely; in mobile plans it is usually expensive.
Questions people ask
Can a telco lock me in for three years?
No. IMDA’s rules cap the contract period for these services at 24 months.
What does it cost to leave a contract early?
Whatever the contract says, but the charge must reduce month by month as you serve the term. Ask for the exact figure in writing before you sign.
Is an MVNO worse in coverage?
Coverage generally follows the host network. Check which network your MVNO uses and whether your plan includes 5G.
Will I lose my number if I switch?
Usually not. Ask the new provider to port your number; settle any contract with the old one first so you are not billed a termination charge by surprise.
Sources: IMDA (formerly IDA), 24-month contract cap and early termination charges; WhistleOut, SIM-only plan listings, October 2026; Marketing-Interactive, end of the M1–SIMBA deal; Operator Watch, MyRepublic subscribers moving to StarHub. Prices change monthly; check the provider’s own page before you sign. The Big Buy explains; it does not advise.
Read next: Home Broadband in Singapore · Travel Insurance in Singapore · Back to The Big Buy
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