Guide to the Cheapest Mobile SIM Only Plans in Singapore (2025)

What is a SIM Only Plan?

A SIM only plan is exactly what it sounds like: a mobile subscription that gives you just the sim card only, without a bundled phone. This means no lock-in contracts, no inflated handset costs, and much more flexibility. You simply pop the SIM into your existing phone and enjoy affordable calls, texts, and data.

The best sim only plan is particularly appealing if you already own a smartphone or prefer buying devices outright rather than through contracts.

Why Choose a Cheap SIM Only Plan?

Choosing the cheapest sim only plan singapore has clear advantages:

• Cost savings: Monthly bills are typically half of traditional contract plans.

• Flexibility: No need to commit for 12–24 months. Switch anytime.

• Choice of phone: You can upgrade your device whenever you want, without waiting for contract expiry.

• Simplicity: You only pay for what you need—data, calls, and texts.

In a competitive market like Singapore, cheap SIM only plans are more available than ever thanks to the rise of MVNOs.

The Rise of MVNOs (Virtual Telcos)

Mobile Virtual Network Operators (MVNOs) lease bandwidth from major telcos (like Singtel, StarHub, and M1) but sell it at lower prices. Popular MVNOs include Circles.Life, Giga, Zero1, MyRepublic, and RedONE.

These providers are reshaping what the best sim only plan Singapore looks like: high-data bundles, low monthly fees, and bonus perks like free roaming or unlimited music streaming.

Compare the 6 Cheapest SIM Only Plans Under $20 in Singapore

Here’s a sim only plan comparison of the most affordable options available in August 2025:

This sim only plan comparison shows just how competitive the market has become. Under $20, you can easily secure more than 20GB of data—perfect for everyday browsing, social media, and streaming.

Who Should Consider a Cheap SIM Only Plan?

Not everyone needs the best sim only plan Singapore with 100GB of data. Cheap SIM only deals are ideal if you:

• Already own your smartphone

• Want to avoid long-term contracts

• Are a student, freelancer, or remote worker seeking flexibility

• Travel often and need affordable roaming add-ons

• Are a senior or light user who just needs calls and basic data

Affordable SIM Only Plans by User Type

Cheap SIM Only Plans for Students

Students often look for the cheapest mobile plan singapore with generous data for online learning and entertainment.

• Circles.Life Student Plan: $10 for 10GB + free social media add-ons.

• RedONE Amazing8: $8 for 8GB, unbeatable for budget seekers.

Cheap SIM Only Plans for Digital Nomads & Remote Workers

Working on the go? You need reliable high-speed data without overpaying.

• MyRepublic Starter: $19.99 with 30GB, ideal for video calls.

• Zero1 Lite: $15 with 15GB, smooth for remote work essentials.

Cheap SIM Only Plans for Light Users

If you only need WhatsApp and occasional browsing, don’t overspend.

• VIVIFI Flexi: $12 with 12GB.

• RedONE Amazing8: Perfect for seniors and light users at $8.

Cheap SIM Only Plans for Heavy Users & Streamers

For those who stream Netflix or play mobile games, the best sim only plan means high data caps.

• Circles.Life 20GB for $18: Reliable speeds and add-ons.

• Giga 25 $18: Extra rollover data for binge sessions.

Cheap SIM Only Plans for Seniors

Seniors usually need calls more than data.

• RedONE Amazing8: Affordable and simple at $8.

• VIVIFI Flexi: Shareable plans with family.

Tips for Choosing the Best Cheap SIM Only Plan

When comparing the cheapest sim only plan singapore, consider:

• Data usage: Match your average monthly use.

• Roaming needs: If you travel often, check roaming bundles.

• Network reliability: MVNOs ride on bigger telcos, but check reviews.

• Flexibility: Ensure no hidden contract lock-ins.

By using a detailed comparison of sim only plans, you can identify which one truly fits your lifestyle.

Are SIM Only Plans Really Better Than Contract Plans?

For most users, yes. A contract may give you a subsidized phone, but the overall cost is higher. With sim card only plans, you can upgrade phones anytime, pay less monthly, and keep flexibility.

Unless you specifically want the latest phone bundled into a contract, the best sim only plan Singapore almost always wins.

FAQs About Cheapest Mobile SIM Only Plans

1. Which is the cheapest SIM-only mobile plan?
   The RedONE Amazing8 at $8/month is currently the cheapest sim only plan singapore.

2. Which is the best SIM-only plan?
   The Circles.Life $18/20GB option is often seen as the best sim only plan for balanced data and flexibility.

3. Who has the cheapest data bundles in Singapore?
   Giga and MyRepublic offer high-data bundles under $20, making them contenders for the best sim only plan singapore.

4. Is a SIM only plan worth it?
   Yes, a sim card only subscription saves you money and lets you change providers easily.

5. How do I choose the right SIM only plan?
   Start with a sim only plan comparison to match your usage, budget, and add-on needs.

Final Thoughts

In 2025, Singapore offers no shortage of affordable and flexible SIM only plans. Whether you’re a student on a budget, a senior who just needs calls, or a heavy user who streams daily, there’s a cheapest mobile plan singapore for you.

By doing a thorough comparison of sim only plans, you’ll discover that the best sim only plan Singapore doesn’t always mean the most expensive one—it’s the one that matches your lifestyle, budget, and data needs.