Compare Best SIM-Only Plans in Singapore(2025) - Buyers Guide
Last updated: Apr 29, 2025
Written by: Circles.Life
3 minutes read
Circles.Life’s Best Sim-Only Plans of 2025
Cheapest SIM-Only Mobile Plan in Singapore
Best SIM-Only Plan for Heavy Data Users: Compare & Save
Best SIM-Only Plan for Moderate Data Users: Compare & Save
Best SIM-Only Plan for Light Data Users: Compare & Save
Best SIM-Only Plan for Heavy Data Users: Compare & Save
Best SIM-Only Plan for Free Data Roaming
Postpaid vs. Prepaid (SIM-Only) Plan – What’s the Difference?
SIM-Only Plans by User Type
Circles.Life’s Best Sim-Only Plans of 2025
Here’s a breakdown of the best SIM-only plans Singapore users can sign up for in 2025, based on value, data, features, and network strength:
Plan Name | Price / Month | Data Allowance | Telco Benefits | Lifestyle Benefits |
$12/mo for first 3 months (reverts to $15 after) | 400GB | Free 8GB monthly roaming across 7 countries; Unlimited outgoing and incoming calls | Free AI bundle: Powered by the latest paid models - GPT-5, Perplexity Sonar, Google Gemini $10 Golden Village movie tickets Exclusive access to lifestyle deals | |
$14.50/mo for first 3 months (reverts to $18 after) | 850GB | Free 12GB monthly roaming across 7 countries; Unlimited outgoing and incoming calls | Free AI bundle: Powered by the latest paid models - GPT-5, Perplexity Sonar, Google Gemini $10 Golden Village movie tickets Exclusive access to lifestyle deals | |
$16.50/mo for first 3 months (reverts to $22 after) | 1TB | Free 15GB monthly roaming across 7 countries; Unlimited outgoing and incoming calls | Free AI bundle: Powered by the latest paid models - GPT-5, Perplexity Sonar, Google Gemini $10 Golden Village movie tickets Exclusive access to lifestyle deals |
Last Updated: November 2025
Cheapest SIM-Only Mobile Plan in Singapore
If your priority is price, here are the most affordable options:
Provider | Feature | Price / Month |
Zero1 | 100 GB (4G) with unlimited calls | Starts from S$7.06/month |
Giga | 100 GB (4G) - contract-free with rollover data and free monthly Asia roaming | S$10.19/month |
SIMBA | 300 GB of data or more | Starts from S$10/month |
Circles.Life | 4G SIM-only plan - 200 GB, unlimited calls, no contract | Starts from S$9.90/month |
According to Zero1, Giga, SIMBA, and Circles.Life official sites as of November 2025
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 (2025 Update) for the latest comparisons.
Best SIM-Only Plan for Heavy Data Users: Compare & Save
If you're constantly streaming video, gaming, or tethering, choose a plan with 150GB+ and high-speed 5G support.
Provider | Data / Talktime / SMS | Key Features | Price / Month |
Circles.Life | 400GB / Unlimited mins | CirclesAI powered by GPT-5, Perplexity Sonar, Gemini, Free Roaming, Loyalty vouchers | $12/mo for first 3 months (reverts to $15 after) |
Singtel | 200 GB data + 1000 mins call + 1000 SMS | Strong network, entertainment bundles | S$55/month |
M1 | 150 GB | Contract options, 5G, roaming | $11.95/month for first term (reverts to $14.95/month after) |
According to Singtel, M1, Circles.Life official sites as of November 2025.
Best SIM-Only Plan for Moderate Data Users: Compare & Save
Moderate users typically stream music, use video calls, and social media regularly—requiring 60–100GB monthly.
Provider | Data / Talktime / SMS | Key Features | Price / Month |
Gomo (Singtel) | 300 GB data + 800 mins + 800 SMS + roaming | Strong network, good roaming add-ons | $18.33 |
M1 | 150 GB data and 1,000 mins/SMS | Data banking, caller ID | $14.95 |
Circles.Life | 100GB data-only / Unlimited mins | Marketplace rewards, CirclesAI powered by paid AI models | $12 |
According to the Gomo, M1 official sites as of November 2025.
Best SIM-Only Plan for Light Data Users: Compare & Save
Light users typically consume under 30GB per month and mainly use WhatsApp, web browsing, and some social media.
Provider | Data / Talktime / SMS | Key Features | Price / Month |
Giga | 100 GB 4G, 300 mins / 300 SMS | Rollover data, app control | $10.19 |
Zero1 | 200 GB local data + 300 mins outgoing talktime + 100 SMS | Cheapest SIM-only plan | $7.06 |
Circles.Life | 200 GB, unlimited calls | Access to CirclesAI powered by paid AI models | $9.90 |
According to the Zero1, Giga official sites as of November 2025.
Best SIM-Only Plan for Heavy Data Users: Compare & Save
If you're constantly streaming video, gaming, or tethering, choose a plan with 150GB+ and high-speed 5G support.
Provider | Data / Talktime / SMS | Key Features | Price / Month |
Circles.Life | 400GB / Unlimited mins | CirclesAI powered by GPT-5, Perplexity Sonar, Gemini, Free roaming, Loyalty vouchers | $12/mo for first 3 months (reverts to $15 after) |
Singtel | 200 GB data + 1000 mins call + 1000 SMS | Strong network, entertainment bundles | $55/mo |
M1 | 150 GB with 1000 minutes and 1000 SMS | Contract options, 5G, roaming | $14.95/mo |
According to the Singtel and M1 official sites as of November 2025.
If you’re a heavy data user who mainly relies on mobile internet for streaming, work, or gaming, you might also want to explore our guide on the benefits of Data-Only Plans in Singapore to see if they suit your lifestyle better
Best SIM-Only Plan for Free Data Roaming
If you travel often, choosing a SIM-only plan that includes free roaming can save you significant costs while keeping you connected abroad.
Provider | Data / Talktime / SMS | Roaming Countries | Price / Month |
Circles.Life | 400GB / Unlimited mins | Free roaming in 7 countries | $12/mo for first 3 months (reverts to $15 after) |
GOMO | 300 GB data / 800 mins / 800 SMS | Free roaming in 5 countries | $18.33/mo |
According to the official Circles.Life and Singtel GOMO sites as of November 2025.
Postpaid vs. Prepaid (SIM-Only) Plan – What’s the Difference?
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.
SIM-Only Plans by User Type
Heavy Streamers & Gamers
Needs: 100GB+ data, 5G speeds, low latency
Best Plans:
Singtel 200GB 5G SIM-only Plan – $25–$35/month
Seniors or Light Users
Needs: Simplicity, low cost, some talktime
Best Plans:
Zero1 6GB Plan – $9.90/month
Gomo 20GB with bundled SMS/calls – $10–$15/month
Students
Needs: Budget-friendly, decent data, no contracts
Best Plans:
Giga 30GB Plan – $10/month
Working Professionals
Needs: High-speed data, reliable calls, remote work tools
Best Plans:
M1 80GB SIM-only with call/SMS – $19.95/month
ABOUT THE ARTICLE
Published 2025/04/29
Written by Circles.Life
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