Your Guide to Comparing SIM-Only Plans in Singapore (2026 Updated)

The popularity of SIM-only mobile plans in Singapore has soared in recent years, and it's easy to see why. With so many providers offering contract-free, data-rich plans at competitive prices, users are no longer tied to rigid contracts or expensive handset bundles. In this 2026 comparison guide, we explore the best SIM-only plans in Singapore from light users to data-hungry streamers—and help you decide which plan offers the most value for your budget and lifestyle.

Whether you’re a student looking for an affordable data plan, a business traveler in need of roaming options, or just someone who wants more control over your monthly bill, this is your ultimate comparison of SIM-only plans across major telcos and MVNOs.

What is a SIM-Only Plan?

A SIM-only plan is a mobile subscription that provides a SIM card with call, SMS, and data services—without bundling a handset. Instead of paying monthly installments for a new phone, users pay only for the mobile service, which drastically reduces the overall cost.

How SIM-Only Plans Work

SIM-only plans work on a simple model. Once you sign up, you receive a SIM card (or eSIM) from the provider, which you can insert into your existing phone. Many plans are contract-free, allowing users to cancel or switch providers at any time. These plans are available through major telcos like Singtel, StarHub, and M1, as well as virtual operators like Circles.Life, Gomo, Giga, and more.

Circles.Life’s No Contract SIM-Only Plans of 2026

Circles.Life leads Singapore's SIM-only market in 2026 with true no-contract flexibility, large 4G and 5G data bundles, and digital perks like CirclesAI and Zerofy cashback. These plans are designed for users who want high data allowances without long-term lock-ins.

Common features across most Circles.Life plans include:

• No contract commitment

• Free CirclesAI access (GPT-5.2, Gemini, Claude, Perplexity and more)

• Zerofy cashback that can offset your mobile bill

• Unlimited local calls

• Roaming options for Asia, Malaysia, and global travel depending on the plan

Last Updated Date: March 2026

Key Factors to Compare SIM-Only Plans in Singapore

When doing a sim only plan comparison, it’s important to evaluate more than just price. Here are the key categories that determine the best SIM-only plans for different needs:

• Price 

• Data Allowance:

• Talk Time and SMS:

• Roaming:

• Promotions and Discounts:(Add-Ons)

• Network Coverage & Speed

Cheapest SIM-Only Mobile Plans in Singapore: Compare Price

If your priority is price, here are the most affordable options:

According to Zero1, Giga, SIMBA, and Circles.Life official sites.

If you’re looking beyond budget-friendly plans and want to explore high-speed data options, check out our full guide on the Best 5G SIM-Only Plans in Singapore for the latest comparisons.

Best Data SIM-ONLY in Singapore

Best SIM-Only Plan for Heavy Data Users: Compare and Save

Ideal for: remote workers, heavy streaming, gaming, and hotspot usage.

According to provider official sites as of March 2026.

Best SIM-Only Plan for Moderate Data Users: Compare and Save

Ideal for: daily social media, video streaming, and occasional hotspot use.

According to provider official sites as of March 2026.

Best SIM-Only Plan for Light Data Users: Compare and Save

Ideal for: messaging, occasional browsing, and light app usage.

According to provider official sites as of March 2026.

Roaming Options – Best for Frequent Travelers

Planning to travel frequently? Check whether your SIM-only plan includes roaming data or affordable travel bundles.

Circles.Life offers consistent monthly roaming, making it ideal for regular regional trips.

Top SIM-Only Network Providers for Speed and Coverage in Singapore

Network Coverage & Speed

While many MVNOs lease their network from Singtel, StarHub, or M1, the performance still varies depending on optimization.

If speed is critical for your usage (e.g. gaming or video calls), Singtel and Circles.Life lead in coverage and performance.

Network performance metrics are based on the latest Opensignal report. Circles.Life operates as a mobile virtual network operator (MVNO) and uses M1’s mobile network infrastructure in Singapore.

SIM-only Plans With The Best Add-ons and Perks In Singapore

Modern users want more than just calls and data. Perks like unlimited queries with CirclesAI powered by OpenAI’s latest models, lifestyle vouchers, or data banking can make or break a plan.

Circles.Life’s bonus features provide real, daily-life value—especially its OpenAI integration.

Compare User Ratings of Singapore’s SIM-Only Providers

A great plan is only as good as the support behind it. Customer reviews can reveal a lot about service reliability and post-sale experience.

Circles.Life consistently ranks high for user satisfaction, transparency, and flexibility.

SIM-Only Plans by User Type

Thinking of making the switch from a prepaid SIM to a postpaid plan? It’s actually easier than most people expect. With Circles.Life, you can port your prepaid number to a postpaid SIM-only plan in just a few simple steps—without losing your existing number. Check out our guide on how to switch from prepaid to postpaid in Singapore to see the full process.

Final Verdict – Who Offers the Best Value?

Choosing the best SIM-only plan in Singapore ultimately depends on your usage habits, budget, and whether you value flexibility or bundled features.

For users who prioritise flexibility and high data allowances, Circles.Life stands out with its contract-free SIM-only plans and large data bundles that can reach up to terabyte levels. Additional digital perks such as CirclesAI access and Zerofy cashback also provide added value for users who want more than just a standard mobile plan.

For most users in 2026, the best value often comes down to finding a balance between price, data allowance, roaming benefits, and contract flexibility. Comparing your data usage and travel needs will help determine which SIM-only plan delivers the most value for your lifestyle.