Best Cheap SIM-Only Plans in Singapore

This post was originally posted on Planner Bee.

SIM-only plans aren’t new, but they’ve quietly become the smarter choice for many Singaporeans looking to save on mobile bills.

In the past, getting a phone contract made sense. You paid a small upfront fee for the latest phone and spread that cost over two years. But as handset prices climbed and telcos offered more flexible options, SIM-only mobile plans stood out.

If you’re trying to lower your monthly phone bills, one of the easiest ways is to switch to a SIM-only plan in Singapore. They’re simple, contract-free, and significantly cheaper in the long run.

Today, Singapore’s mobile market offers competitive SIM-only deals from major telcos and Mobile Virtual Network Operators (MVNOs), giving consumers more control and flexibility.

This guide will explain what makes a plan cheap, how pricing has evolved, and compare the best SIM-only plans in Singapore for 2025, including key trade-offs to help you choose.

What is a SIM-only plan?

A SIM-only plan is a mobile subscription that provides just the SIM card, without a bundled new phone. You can insert the SIM into your existing device for data, calls, and SMS.

Unlike traditional postpaid contracts, SIM-only plans have no long-term commitments. This allows you to switch providers anytime without penalties. This makes them ideal for users wanting flexibility, affordability, and control over their mobile spending.

What makes a SIM-only plan “cheap”?

When people search for cheap SIM-only plans in Singapore, they often look for the lowest price. However, the “cheapest” plan isn’t always the best deal. The true value of a mobile plan depends on several factors:

• Data allowance: The biggest differentiator is data. A good cheap plan offers 200 to 400GB of high-speed data for under S$10.
• Call minutes and SMS: If you make frequent calls, look for plans with 300 to 500 mins or unlimited talktime.
• Network quality: Budget plans can differ in speed, reliability, and coverage. Some MVNOs access only 4G networks, while others support 5G.
• Speed caps: Check if “unlimited data” means full-speed usage or throttled after a certain point.
• Add-ons and roaming: Low-cost plans may exclude roaming or charge extra for international usage.

The cheapest SIM-only plans in Singapore range from S$7 to S$12 per month, offering large data bundles and generous call allowances. These plans offer better value than traditional contracts.

How the “cheap” range has evolved over time

In recent years, the definition of a cheap SIM-only plan has changed dramatically.

• Five years ago, paying under S$20 for 20GB of data was a bargain.
• Today, thanks to increased competition among MVNOs and telcos, you can get up to 400GB for under S$10.

This price evolution is driven by:

• The growing number of MVNOs in Singapore, like Circles.Life, Zero1, and GOMO.
• Consumer demand for no-contract flexibility.
• Lower operational costs due to digital-first service models.

Singapore now offers some of the most affordable and best-value SIM-only plans in the region. These plans allow users to enjoy high data allowances at minimal monthly costs.

What is an MVNO?

An MVNO (Mobile Virtual Network Operator) sells mobile plans without owning network infrastructure. It leases access from major telcos like Singtel, StarHub, or M1, offering lower prices and more flexible plans.

Popular MVNOs in Singapore include Zero1, Circles.Life, GOMO, MyRepublic, SIMBA, and eight Mobile. These providers have made cheap SIM-only plans more accessible to the mass market.

Read more: Why You Seriously Need to Relook at Your Mobile Plans

Who has the lowest SIM-only prices right now?

Here are the best cheap SIM-only plans in Singapore. They are compared by value, data per dollar, and trade-offs.

1. Zero1 Starter Prime (4G)

• Price: S$7.06 / month
• Data: 200GB (~28GB / dollar)
• Talktime: 300 mins
• SMS: 100
• Value: Excellent entry-level plan offering exceptional data-to-cost ratio.
• Trade-offs: Speeds are managed and may dip during peak periods. It includes a 3-month trial of 5G access only.
• Best for budget-conscious users seeking generous data and moderate call allowances at a low monthly cost.

2. M1 Maxx

• Price: S$7.90 / month
• Data: 290GB (~37GB / dollar)
• Talktime: 500 mins outgoing, unlimited incoming
• SMS: 99
• Value: Top value-for-money plans in Singapore.
• Trade-offs: 5G supported, but capped after fair-use limits. Plan renews every 30 days.
• Best for heavy data users, students, and gig workers who want massive data at a low price.

3. eight Double Eight Plan

• Price: S$8.00 / month
• Data: 388GB (~48GB per dollar)
• Talktime: 588 mins
• Value: Superb balance between data and calls.
• Trade-offs: Modest roaming and IDD bundles only. 4G-only network tier.
• Best for all-round users seeking large bundles without extra add-ons.

4. MyRepublic 4G Essential Plan

• Price: S$9.90 / month
• Data: 288GB (~29GB per dollar)
• Talktime: 200 mins
• SMS: 100
• Roaming: Includes 3GB monthly roaming in Malaysia and Indonesia (Travel Boosters available for other destinations).
• Value: Excellent data-per-dollar ratio and stable speeds on M1’s network, suitable for work or streaming.
• Trade-offs: Limited talktime
• Best for users who value stability for work or streaming.

5. SIMBA SuperRoam10

• Price: S$10.00 / month
• Data: 400GB (~40GB / dollar)
• Talktime: Unlimited to local mobile numbers + 500 mins to local fixed lines and IDD.
• Value: Huge regional data allowance and broad roaming reach at a low price.
• Trade-offs: Roaming performance and VoLTE support depend on the destination network. Outgoing SMS while roaming is not supported. Large data pool is promotional (subject to change).
• Best for travellers, digital nomads, and cross-border commuters who spend time around Singapore, Malaysia, Indonesia, and Hong Kong.

6. Geenet

• Price: S$10.00 / month
• Data: 200GB (~20GB / dollar)
• Talktime: 1,000 local minutes + free incoming
• Value: Ideal for heavy callers. Optional 350 mins IDD add-on for expats.
• Trade-offs: Not truly unlimited calls, minimal perks or extras.
• Best for small business owners and call-heavy users.

7. GOMO 4G Saver

• Price: S$10.18 / month
• Data: 100GB (~10GB per dollar)
• Talktime: 300 mins
• SMS: 300
• Roaming: 2 GB in Malaysia, Indonesia, Thailand, Taiwan & Australia.
• Value: Offers access to Singtel’s top-tier 4G coverage and strong performance, combined with straightforward plan management through the GOMO app.
• Trade-offs: Provides less data than many MVNO competitors and relies on app-based support instead of full in-store customer service.
• Best for users prioritising reliable coverage and performance.

8. Circles.Life 4G Core

• Price: S$10.80 / month
• Data: 350GB (~32GB / dollar)
• Talktime: Unlimited
• Value: Flexible app-based plan management.
• Best for power users needing unlimited talktime and flexibility.

Summary of the best cheap SIM-only plans in Singapore

How to compare SIM-only plans beyond price

A lower monthly fee matters only if the plan fits your usage. When comparing SIM-only plans in Singapore, use this checklist:

• Check promo durations and post-promo rates to find the true monthly cost.
• Are speeds capped after certain limits?
• MVNOs rely on major networks but may lack full 5G access.
• If you travel, check for regional or international coverage.
• Most plans are no-contract, but read conditions for promo retention.

Choosing the right SIM-only plan

Singapore’s SIM-only market is evolving fast. The cheapest plan today might be outmatched by a better deal next month, and that’s the beauty of going SIM-only.

Review your plan every six to 12 months. These plans have no lock-ins, allowing you to switch to a better offer and save hundreds of dollars a year without compromising service quality.

Whether you’re a student, business owner, traveller, or seeking a cheap SIM-only plan in Singapore, it’s a great time to switch.

Read more: Is Your Salary Enough for Singapore’s Cost of Living?