SIM-Only Mobile Plans in Singapore Compared

Eight providers sell SIM-only mobile plans in Singapore, and between them they publish 49 of them. Comparing those plans sounds like a matter of lining up prices and allowances. It is not. One provider bills per 30 days and per 90 days rather than monthly. One states its billing period two different ways on the same page. Roaming appears in at least six shapes that cannot share a column. Not one of the eight says whether its prices include GST.

So this is a comparison, not a ranking. There is no first place here, no overall pick and no plan described as the lowest-priced, because the published figures do not support any of those claims. A $12 charge billed every 30 days and a $12.95 charge billed monthly are not the same yearly commitment. A plan with 400GB of local data and 400GB of regional bonus data is not a plan with 800GB. A roaming pass at $0.99 a day is not an allowance at all, and it cannot be put next to one.

What follows is every plan recorded as its provider publishes it, with the fields kept apart: the charge is the ordinary recurring one, the base allowance is separate from any bonus, and the billing period is stated rather than assumed. After the table, the plans are grouped by the situations they actually suit — a low recurring charge, a large base allowance, travel, an eSIM, no contract — and the plans you have to qualify for are held in a section of their own.

Two things this comparison does not do. It says nothing about network coverage, speed or reliability: measuring those needs a testing model LocalRank does not have, and provider marketing claims about them are not evidence. And it does not net any free gift, voucher, streaming subscription or cashback offer off a plan price — those are conditional benefits, and subtracting them would manufacture a price nobody is charged.

There is no register a consumer can use to list Singapore SIM-only providers. IMDA publishes a list of services-based operators offering prepaid services, and it is not that list: it covers prepaid rather than the largely postpaid SIM-only market, it states on its own face that facilities-based licensees offering prepaid services are excluded — which removes the network operators — and of its licensee entities only one is a recognisable consumer mobile brand. It is useful for corroborating legal entities. It is not a universe.

The universe here was therefore declared and built from live first-party provider sites, checked on 21 September 2026. That matters more in this category than in most, because the market moved recently: three consumer operators are recorded as having ceased Singapore operations, the most recent of them by June 2026, and a provider list carried over from memory would still contain all three. Finding the live pages was itself work — the obvious plan-page URLs at M1, Circles.Life, giga!, StarHub and Singtel all returned 404, and each working path was taken from that provider’s own navigation or its own error page rather than guessed.

Every price, allowance, billing period and term below was read from the provider’s own page. Across 8 providers that produced 49 plans, of which 39 are available to a general reader and 10 require the reader to qualify. Where a provider does not publish a field, this article says it is not published. It does not record it as zero, none or absent, because those are three different claims and the page supports none of them.

Four limits on the extraction are worth stating plainly. StarHub’s store offers five plan families and only the Unlimited+ family was extracted, so no Platinum, Senior, Data Only or Lite plan appears anywhere here. giga! offers a six-month billing option alongside its monthly view; only the monthly view was read, and the six-month prices are not established and were not derived by multiplying. MyRepublic’s plan grid sits behind a sign-up flow: the figures were extracted first-party earlier the same day, the provider was confirmed trading, and no sign-up was started merely to re-read prices. And the host network behind Circles.Life and MyRepublic is not stated on their own pages, so it is not asserted here.

Seven columns, chosen because they are the fields every provider publishes in a form that can sit next to another provider’s. The charge shown is the ordinary recurring one, and no temporary introductory price appears anywhere on this page — there is a section below on why not. The data column carries the base or permanent allowance only, never a bonus added to it, and never a headline figure that the provider itself publishes as stepping down. The roaming column describes a shape rather than giving a figure to rank by. Everything else — fair-use ceilings, talk and SMS, rollover, fees — is in the prose, where it has room to be accurate.

The allowance in that table is one fact, and several providers publish a second one beside it that behaves completely differently. Collapsing them into a single number is the single easiest way to get this category wrong, so they are kept here instead:

Most providers in this set publish a lower charge beside the recurring one for readers who are signing up or porting in. None of those figures appears anywhere above, and the omission is a decision rather than an oversight. Introductory pricing in this category is written in days, not seasons: the shortest window recorded during the research ran out three days after it was read. A page that reproduced those figures would be wrong about most of them within a month, and wrong in the direction that costs a reader money at the till.

So every charge in every table here is the ordinary recurring one — what the plan costs once any introductory window has passed, which is what a reader pays for almost all of the time they hold it. Where a provider publishes a lower price that never reverts, that price is the plan price and it is the one shown. No charge on this page has been calculated, blended, averaged or inferred: each one is a figure its provider published as recurring.

Most providers here bill monthly. SIMBA does not: every SIMBA row is billed per 30 days or per 90 days. Those are not the same thing as a month. A 30-day cycle recurs about 12.17 times in a year, not twelve, and a 90-day cycle about 4.06 times. Rewriting either as a monthly price would quietly understate one and overstate the other, so the published term is what appears in the table.

The arithmetic is worth doing once, because it is the one place in this category where a sound calculation changes the picture. It is subscription cost only — it excludes any activation, SIM, delivery or other mandatory charge, because SIMBA publishes none of them, and it excludes GST, because SIMBA does not state its treatment on these rows.

The two pairs in that table are the same plan on two different terms. The 600GB row with 18GB of APAC roaming costs $12 per 30 days or $30 per 90 days, and over a year that is the difference between $146.00 and $121.67 in subscription charges. The 600GB row with 25GB of APAC roaming is $15 per 30 days or $39 per 90 days, which is $182.50 against $158.17. SIMBA itself badges the 90-day rows as a saving; this is what the saving is, calculated rather than asserted.

None of the groups below is ordered, and none of them has a pick. They exist because the published evidence genuinely separates the plans along these lines — and where it does not, there is no section.

The lowest generally available recurring charges in this set are MyRepublic’s 4G 300GB plan at $7.20 a month, Circles.Life’s Circles Core at $8 a month, SIMBA’s 500GB row at $10 per 30 days, and giga!’s 4G 100GB plan at $10.90 a month. Each of them gives something up to get there, and the published pages say what. MyRepublic’s 4G plan and giga!’s two 4G plans are published as 4G rather than 5G. Circles Core’s 5G is published as a time-limited inclusion rather than an unconditional one, and the Circles Core card lists no roaming at all. SIMBA’s $10 row is billed per 30 days, which is the cycle question above.

A little above that, giga!’s 4G 200GB is $12.90 a month, SIMBA’s 600GB row is $12 per 30 days, M1’s Bespoke SIM-only 300GB is $14.95 a month and giga!’s 300GB plan is $15.90 a month. Two MyRepublic 5G rows sit in the same band, at $12.95 and $14.95 a month, and both carry a caution the charge does not show: their allowances step down. One settles at 700GB, which is the figure in the table. The other is published at its headline figure for three months with no ongoing level stated at all, so the table shows no allowance for it. In both cases the charge is stable while what you get for it is not, and that is the opposite of the usual trap in this category.

Read this group by base or permanent allowance only. A campaign bonus does not count towards it, and an allowance that steps down is not the figure on the card. On that basis Circles.Life publishes the largest figures in the set — Circles Ultra at 2TB for $40 a month and Circles Max at 1TB for $30 — followed by M1’s Bespoke SIM-only 1TB at $17.95 and its 1TB with Worldwide Roaming at $22.95, both published as permanent uplifts rather than campaign boosts. giga!’s 1TB plan is $28.90 a month across Singapore and Malaysia. MyRepublic’s 900GB plan at $18.95 is the only MyRepublic 5G row whose allowance is not time-limited. SIMBA’s largest row is 800GB at $25 per 30 days, usable across five countries rather than locally.

Six plans in the comparison are sold as unlimited local data with no published fair-use ceiling of any kind: StarHub’s Unlimited+ Core at $38, Unlimited+ Plus at $48 and Unlimited+ Max at $78, and Singtel’s Enhanced Core at $40, Priority Plus at $55 and Priority Ultra at $80. GOMO’s two Infinity plans — Asia Infinity at $30.99 and Global Infinity at $50 — are also sold as unlimited, but GOMO is the only provider that publishes the ceiling behind the asterisk, at 1,024GB of local data. Whether an unlimited plan with a published ceiling or one with no published ceiling is the better disclosure is a judgement for the reader; what can be said is that only one of the two tells you where the limit is.

Roaming is where this category resists comparison hardest. The providers are not selling more or less of one product; they are selling different products under one word, and a GB figure from one of them means nothing against a GB figure from another. These are the shapes recorded:

Two further details do not fit the shapes but change what an allowance is worth. MyRepublic’s free roaming data is published as valid for seven days from the first day of usage across twenty named countries — an allowance with a consumption window is not the same product as one that lasts the billing cycle. And giga! is the only provider in this set that publishes which overseas networks carry its roaming data, naming Maxis and U Mobile in Malaysia, Indosat and Telkomsel in Indonesia, True Move and DTAC in Thailand, SK Telecom and KT Corp in South Korea, and Airtel, BSNL and Vodafone Idea in India, while noting that the list and its exclusions may change.

Six of the eight providers state eSIM support where a reader can attach it to a plan: GOMO, SIMBA and M1 on every plan card, giga! at grid level across all plans, Singtel at page level across all plans, and MyRepublic at provider level alongside physical SIM. Two do not. Circles.Life markets eSIM elsewhere on its site but its plan grid does not state it per plan, and StarHub does the same. That is recorded as not published rather than as unavailable — the difference matters, because one of those is a fact about the plan and the other is a fact about the page.

SIM-only is widely assumed to mean contract-free, and in this set that assumption fails twice over. It fails once because a plan in the comparison does carry a contract: Singtel’s 5G+ Enhanced Lite is published with a 12-month contract, while Singtel’s Enhanced Core, Priority Plus and Priority Ultra are published as no contract. Contract status at Singtel is a per-plan fact, not a provider-wide one.

It fails a second way because four providers do not publish contract terms on the plans at all. GOMO states no contract on every plan card, M1 states no contract on every tier, and MyRepublic states no lock-in commitment with plans switchable at any time at no extra charge. SIMBA, Circles.Life, giga! and StarHub publish nothing per plan — giga!’s customer copy refers to no contract, but the plan grid itself does not say so, and that is a weaker thing to rely on than a term printed on the plan. Absence of a stated contract is not a stated absence of one.

One group that was considered and is not here: light use. Nothing in this set is a light-use product. The smallest base allowance any of the eight providers publishes is 100GB, the prices are not set by allowance size, and the plans that would populate such a section are the same ones already described under a low recurring charge. A section that restated another section under a different heading would suggest a distinction the evidence does not support, so it was dropped.

10 of the 49 plans recorded cannot be bought by a general reader. They are held out of the comparison above entirely rather than mixed into it, because a price a reader cannot access is not a price they can compare against. They are published here because they are real, and because they are often the least expensive rows a provider offers.

The restrictions themselves are published to different standards. GOMO states its conditions precisely: aged 60 or older for the two Senior plans, aged 16 to 24 for the two Student and NS plans. Singtel states seniors aged 60 and above. giga! states ages 15 to 29. SIMBA marks a row as a Seniors Plan without stating a qualifying age on the card, and M1 publishes its Silver tiers under exclusive silver benefits, describing a seniors exclusive plan in its own carousel but not stating a qualifying age on the plan grid. Where the age is not published, it is not asserted here.

The charges in that table are ordinary recurring ones, on exactly the same basis as the comparison above: where a provider publishes a temporary introductory price on a restricted plan, it is not shown here. That is worth saying plainly for this group, because these rows are promoted more heavily than the general ones and the gap between the introductory figure and the recurring figure is wider. One row is different in kind and is treated differently. GOMO publishes its Senior 400GB at $6 as an ongoing plan price rather than as an offer with an end, so $6 is the charge in the table — a price that never reverts is the price of the plan.

One plan that looks restricted and is not: giga!’s 4G 100GB is marked as recommended for seniors but carries no age condition, so it stays in the general comparison above. A recommendation is not an eligibility rule and is not recorded as one.

The useful order of questions in this category is not price first. It is period, then allowance, then what happens in three months.

Every plan figure in this article was read first-party from the pages below on 21 September 2026. No secondary source, aggregator or comparison site contributed a price, an allowance or a term, and where a secondary source disagreed with a provider’s own page the provider’s page was preferred and the disagreement was not carried forward.

Three providers are recorded as having ceased Singapore consumer operations and do not appear above: Changi Mobile (to February 2026), Geenet Mobile (to December 2025), redONE Mobile SG (to June 2026). They are kept on record because a provider that existed last year is not evidence that it exists now, and an unchecked list would still be selling their plans.

Research and drafting were AI-assisted. Every figure was checked against the named provider’s own page, no figure was taken from memory, and the named editor is accountable for accuracy regardless.