Which SIM-Only Plan is the Most Affordable for Me?

Updated on 13 Oct 2025

Remember when signing up for a phone plan meant two years of commitment and a monthly bill that was as much as a flight ticket to Kuala Lumpur? Traditional mobile contracts force you to pay for features you didn’t need, just to make the device seem 'free' or heavily discounted. In reality, the cost of that shiny new handset was just hidden in your high monthly subscription. It's no wonder many Singaporeans are tired of this model.

Now, there's a much lighter load for your wallet. SIM-only plans give you plenty of data and talk time with no strings attached, offering a simple monthly subscription instead of a long-term lock-in. With so many affordable SIM-only mobile plans in Singapore popping up—thanks to numerous virtual operators entering the scene (more on that later)—it has never been easier to find an affordable SIM card that truly suits your needs.

But with options starting well under $10, the sheer number of choices can be overwhelming.

So, which is the affordable SIM-only plan that is actually the best value for your needs, and how can you decide? This guide aims to answer that question by showing you where to look, what to compare, and why some cheap plans offer much more value than others.

Maxx’s Best SIM-Only Plans

Before diving into the rest of the market, let’s quickly look at what Maxx offers. For users looking for a truly affordable SIM card that matches modern life, Maxx's plans are built to deliver maximum data and generous roaming. We offer straightforward, high-value bundles, ensuring a cost-efficient SIM-only plan for everyday use in Singapore.

Let’s look at Maxx’s SIM-only plans based on price, data, and call minutes.

* $7.90/cycle promotional pricing only for the first 12 cycles.

Maxx stands shoulder to shoulder with many competitors, easily offering affordable SIM-only mobile plans in Singapore that fall under the $10 price point. Given the incredible data and roaming allowances included in these bundles, you might just find that Maxx offers some of the best SIM-only plans available to date.

What is An MVNO?

To understand how these mobile plans remain so cheap, you need to know about the Mobile Virtual Network Operator (MVNO) landscape. An MVNO is a mobile service provider that doesn’t own its own network infrastructure, but rather leases network access from the larger, traditional carriers like Singtel, M1, and StarHub at wholesale rates.

This business model allows MVNOs to avoid the massive cost of building and maintaining cell towers, passing those savings directly to you through SIM-only plans with low-cost monthly subscriptions in Singapore. Next, let's see which MVNO operates on which host network in Singapore.

Most Affordable SIM-Only Plan on the M1 Network

The M1 network hosts many value-driven MVNOs. When searching for the best SIM-only plan under $10 in Singapore on this network, Maxx stands out as the clear winner, considering its included data and features.

1 - Maxx’s $7.90/cycle promotional pricing only for the first 12 cycles.
2 - Changi Mobile Flexi Max offers 200 IDD mins for calls to Bangladesh, China, India, and Malaysia

Maxx has the strongest deal for anyone hunting affordable SIM-only mobile plans in Singapore on the M1 network. Our 290GB plan is available for just $7.90 (Promo), making it the top choice for price-to-data ratio. It provides a massive 290GB of 4G data usable in Singapore and Malaysia, along with 12GB of APAC and International roaming—a far superior bundle to the M1-branded option and the Circles.Life plan at a similar entry price.

Most Affordable SIM-Only Plan on the Singtel Network

The Singtel network is known for reliable coverage and hosts many MVNOs competing in the sub-$8 range. These carriers excel at offering an affordable SIM card at the lowest possible monthly fee.

Zym Mobile’s Roam Saver 4G is an excellent candidate for the best SIM-only plan under $10 in Singapore. At just $7.77, it offers a great blend of price and initial data.

However, the true benefit of this network comes from its promotional offers. For example, CMLink's highly attractive temporary rate of $7.70 includes a huge 200GB data allowance. This makes the Singtel MVNOs very tempting if you're willing to track promotional periods.

Most Affordable SIM-Only Plan on the StarHub Network

The StarHub network features some highly disruptive MVNOs that offer large data packs for under $10, directly challenging the idea that huge data costs a fortune.

1 - RedONE's BEST10 plan offers 100 IDD mins for calls to Malaysia, Thailand, and Indonesia.
2 - MyRepublic's 5G Plan 350GB starts at $0 for the first month, then $9.90 per month for the next two months, before reverting to $15.95 per month.

Eight's Double Eight plan is a fantastic deal, coming in at just $8.00 for 388GB of data and includes roaming. However, RedONE’s Best10 as the top affordable contender because of its unique selling point: the 250GB data and 500 minutes of talktime can be used natively in both Singapore and Malaysia. For commuters and regular cross-border travellers, this seamless feature alone makes it highly attractive.

Most Affordable SIM-Only Plan on the SIMBA Network

SIMBA operates its own network and is famous for plans that include unlimited calls to local mobile numbers and generous roaming. The company focuses on huge data bundles, making its plans highly competitive, especially for users who require high-volume data on a separate network infrastructure.

SIMBA's 400GB Plan ($10.00) stands out as the most affordable SIM-only plan in this category, offering a massive amount of data and roaming for just a ten-dollar note. For users who prioritise huge data pools and unlimited local mobile calls over a promotional price, the value here is clear.

Closer Look at the Most Affordable SIM-Only Plans in Singapore

We've finished looking at the most competitive plan on each host network. But how do they all compare side-by-side when sorted purely by price? It's essential to compare these options side by side to truly grasp which SIM-only plan is the most affordable while still providing the data and talktime you rely on.

1 - MyRepublic's 5G Plan 350GB starts at $0 for the first month, then $9.90 per month for the next two months, before reverting to $15.95 per month.

1. Changi Mobile SIM-Only Plans

Changi Mobile positions itself as a great solution for users who need huge data volumes and specific roaming features. Their top-tier plan, while not the cheapest, focuses on long-term data management.

Flexi Max

• Free 480GB Local Data, 1,000 mins Talktime & 200 SMS
• Free 5GB roaming data (monthly), rollover up to 10 months. Refer to T&Cs for more info
• Free 200mins IDD call to Bangladesh, China, India & Malaysia
• Free Incoming Call, Incoming SMS, and Caller ID
• Free Port in; No Activation Fee; No Contract
• SIM Card Delivery Fee is Applicable

The Flexi Max plan, priced at $25.00 per month, offers excellent features like the ability to roll over unused roaming data for up to 10 months. This is perfect for those whose travel schedule is unpredictable and who rely on their phone for high-volume use.

2. Circles.Life SIM-Only Plans

Circles.Life pioneered the digital-first MVNO model in Singapore, focusing on flexibility and digital lifestyle perks. They operate on the M1 network alongside Maxx, providing highly competitive data bundles.

5G Core ($12/month promo)

• 400GB local data (Promo, reverts to 250GB after 3 months)
• 8GB roaming data (monthly), across Malaysia, Indonesia, Thailand, Hong Kong, and more
• Unlimited incoming and outgoing calls
• Free AI bundle — OpenAI's ChatGPT-5 and more
• Exclusive access to movie tickets at $10

5G Most Unrestricted

• 800GB local data
• 12GB roaming data (monthly), across 7 popular countries
• Unlimited incoming and outgoing calls
• Free AI bundle — OpenAI’s ChatGPT-5 and more
• Exclusive access to movie tickets at $10

5G Plus

• 1TB local data
• 15GB roaming data (monthly), across 7 popular countries
• Unlimited incoming and outgoing calls
• Free AI bundle — OpenAI’s ChatGPT-5 and more
• Exclusive access to movie tickets at $10

Starting at a promotional $12.00 per month for the 5G Core plan, Circles.Life distinguishes itself with fantastic SIM-only plans for students and young adults due to the additional lifestyle benefits. If you value unlimited calls and streaming perks, Circles.Life is a compelling, affordable SIM-only plan that integrates your mobile use with entertainment.

3. CMLink China Mobile SIM-Only Plans

CMLink is specifically designed for customers needing strong, affordable connectivity between Singapore, China, and Hong Kong. Their plans cater directly to users with family or business ties in mainland China.

200GB (Starts at ~$7.70)

• 200GB Local Data
• 1GB roaming data in mainland China & Hong Kong SAR
• 3GB roaming data in Macau, Taiwan, Indonesia, Malaysia, the Philippines, and Thailand
• 100GB roaming in Malaysia (valid for 365 days)
• Free local incoming calls, 300 minutes local outgoing calls, 100 local SMS, and Free Caller ID

300GB

• 300GB Local Data
• 3GB roaming data in mainland China & Hong Kong SAR
• 5GB APAC 12 roaming data in Australia, Indonesia, Japan, Macau, Taiwan, Malaysia, Philippines, South Korea, Thailand, and Vietnam
• 600GB roaming in Malaysia (valid for 365 days)
• Free local incoming calls, 300 minutes local outgoing calls, 100 local SMS, and Free Caller ID

400GB

• 400GB Local Data
• 5GB roaming data in mainland China & Hong Kong SAR
• 15GB APAC 12 roaming data
• 600GB roaming in Malaysia (valid for 365 days)
• Free local incoming calls, 600 minutes local outgoing calls, 100 local SMS, and Free Caller ID

Unlimited (Promo - ~$10.01)

• Free 5G Access
• 200GB Local Data (inclusive of max 30GB roaming data in mainland China & Hong Kong SAR)
• 3GB APAC 7 roaming data
• 600GB roaming in Malaysia (valid for 365 days)
• Free local incoming calls, 300 minutes local outgoing calls + outgoing calls from SG to mainland China & more, 300 local SMS, and Free Caller ID

Starting at around $7.70 per month, CMLink is an outstanding option if you have family in China or travel there frequently, offering dedicated roaming bundles and outgoing calls to the mainland. CMLink is generally highly cost-efficient for this specific use case.

However, note that 5G access requires an extra $5 per month add-on on many plans, increasing the overall monthly commitment. Weigh this cost against the specific roaming benefits offered to determine its total value for your needs.

4. eight SIM-only plans

eight Telecom, operating on the StarHub network, makes its name by offering plans themed around the lucky number eight, translating into huge data, minutes, and roaming allowances for great prices.

Lucky eight Plan ($14.80/30 days)

• 588GB local data for use in Singapore, Malaysia, Indonesia, and Thailand
• 28GB APAC Roaming
• 8GB Int'l Roaming
• 688 Mins Local Talktime, 388 IDD Mins (Excl. Myanmar), 88 IDD Mins from Myanmar
• 128 Local SMS

Triple Eight Plan ($18/30 days)

• 688GB local data for use in Singapore, Malaysia, Indonesia, and Thailand
• 36GB APAC Roaming
• 18GB Int'l Roaming
• 888 Mins Local Talktime, 488 IDD Mins (Excl. Myanmar), 88 IDD Mins from Myanmar
• 188 Local SMS

eight offers fantastic cost-efficient SIM-only plans for everyday use in Singapore, particularly because their low starting price of $8.00 for the Double Eight plan includes such massive data limits. They appeal strongly to Singaporeans who frequently travel to popular destinations like Bangkok, Batam, and Johor Bahru, and they offer both prepaid and postpaid options for ultimate flexibility.

5. Giga! SIM-only plans

Giga!, operating on the StarHub network, stands out for giving users maximum control over their data, thanks to its popular rollover feature. They offer high-volume packages that are ideal for data-hungry users and commuters.

400GB (Reg. $18.33/month)

• 400GB local data for use in Singapore and Malaysia
• 10GB Asia Roaming, 6GB Int'l Roaming
• 800 Mins outgoing calls, 800 Local SMS
• Free rollover data for 2 cycles, up to 800GB

500GB (Reg. $20.37/month)

• 500GB local data for use in Singapore and Malaysia
• 12GB Asia Roaming, 10GB Int'l Roaming
• 1,000 Mins outgoing calls, 1,000 Local SMS
• Free rollover data for 2 cycles, up to 1TB

1TB (Reg. $28.00/month)

• 1TB local data for use in Singapore and Malaysia
• 16GB Asia Roaming, 12GB Int'l Roaming
• 1,500 Mins outgoing calls, 1,500 Local SMS
• Free rollover data for 2 cycles, up to 800GB

The Giga! platform provides a really solid, affordable SIM-only plan option, especially for Singaporeans making frequent trips across the Causeway, as data is usable in both Singapore and Malaysia. Starting at a regular price of $18.33 a month, their most attractive benefit is the huge data rollover limit, meaning you never feel like you've wasted your subscription.

6. Gomo by Singtel SIM-only plans

Gomo is Singtel’s digital-first sub-brand. They lean on the reliability and speed of the Singtel network while maintaining competitive prices and offering generous, straightforward bundles with excellent roaming options.

5G+ VALUE (Reg. $18.33/month)

• 300GB local data for use in Singapore and Malaysia
• 10GB Roaming in Malaysia, Indonesia, Thailand, Taiwan, & Australia
• 6GB Int'l Roaming across 50 locations
• 800 Mins Local Talktime, 800 Local SMS

5G+ PROLITE (Reg. $20.99/month)

• 500GB local data for use in Singapore and Malaysia
• 12GB Roaming in Malaysia, Indonesia, Thailand, Taiwan, & Australia
• 10GB Int'l Roaming across 50 locations
• 1,000 Mins Local Talktime, 1,000 Local SMS

Gomo plans are a perfect balance of reliability and affordability. Starting with promotional offers that are well under $15 a month, their core strength is the generous roaming data included in the base price, which is perfect for globe-trotters. This ensures you have an affordable SIM card that provides seamless connectivity across many popular destinations.

7. heya by Singtel SIM-only plans

Heya is another Singtel-backed, low-cost option that strips the frills away to offer extremely high data volume at competitive prices, often focusing heavily on dedicated data roaming bundles.

400GB ($10/30 days)

• 200GB local data for use in Singapore
• 200GB Roaming in Malaysia, Indonesia, and Thailand
• 300 local mins talktime, 100 IDD mins talktime
• 50 local SMS

600GB ($13/30 days)

• 300GB local data for use in Singapore
• 300GB Roaming in Malaysia, Indonesia, and Thailand
• 10GB Asia Roaming in 15 countries
• 300 local mins talktime, 500 IDD mins talktime
• 50 local SMS

Heya's approach is highly appealing: a straightforward, no-frills plan that dedicates a massive portion of its data to roaming in popular Southeast Asian destinations. For just $10.00 a month, getting 200GB of usable roaming data makes it a strong choice for which is the affordable SIM-only plan for the cross-border worker or casual traveller.

8. M1 SIM-only plans

M1’s core brand SIM-only plans are generally priced slightly higher than their MVNO counterparts but include unique lifestyle perks and priority services, such as enhanced data features.

150GB (Reg. $14.95/month)

• 150GB local data for use in Singapore
• Unlimited Weekend Data for 12 months
• 1,000 local mins talktime, 1,000 local SMS
• M1 Cashback

1TB (Usual 300GB) (Reg. $17.95/month)

• 1TB local data for use in Singapore
• Unlimited Weekend Data for 12 months
• 1,000 local mins talktime, 1,000 local SMS
• M1 Cashback

1TB (Usual 350GB) (Reg. $22.95/month)

• 1TB local data for use in Singapore
• 1GB Worldwide Roaming across 74 destinations
• Unlimited Weekend Data for 12 months
• 1,000 local mins talktime, 1,000 local SMS
• M1 Cashback

The $17.95 plan, offering a huge data allowance, is one of the most price-competitive options in Singapore when you consider the included features like Unlimited Weekend Data. This feature is particularly user-friendly for anyone who loves spending their Saturdays and Sundays binge-watching shows or gaming without stressing about their data cap.

9. Maxx SIM-only plans

Maxx, an M1-backed affordable SIM-only plan provider, is redefining the value equation by combining high data capacity with generous regional roaming and IDD minutes. Offering simple, value-driven plans built for the modern connected life.

$10 (400GB)

• 400GB local data for use in Singapore and Malaysia - Free 5G
• 13GB APAC Roaming, 3GB Int'l Roaming
• 500 mins Local Outgoing Calls, Unlimited Local Incoming Calls
• Up to 300 IDD mins talktime, 50 local SMS, Free Caller Number Display

$12 (500GB)

• 500GB local data for use in Singapore,Malaysia and Indonesia - Free 5G
• 20GB APAC Roaming, 7GB Int'l Roaming
• 500 mins Local Outgoing Calls, Unlimited Local Incoming Calls
• Up to 600 IDD mins talktime, 50 local SMS, Free Caller Number Display

Outside of the promotional $7.90 Online Exclusive (4G) plan, our $10 and $12 plans offer True 5G access with up to 500GB of combined regional data. This high-data, high-speed approach ensures Maxx remains competitive, providing some of the strongest SIM-only plans with low-cost monthly subscriptions in Singapore for heavy users.

10. MyRepublic SIM-only plans

MyRepublic is known for its high-value 5G and 4G options, often tempting customers with introductory promotional offers and massive data allowances on the StarHub network.

350GB (Reg. $15.95/month)

• 350GB local data for use in Singapore
• 5GB Data Roaming in Malaysia, Indonesia, and Thailand
• 800 mins local mins talktime, 800 local SMS

550GB (Reg. $17.95/month)

• 550GB local data for use in Singapore
• 12GB Data Roaming in Malaysia, Indonesia, and Thailand
• 2GB Int'l Roaming in South Korea, Philippines, Sri Lanka, Bangladesh, Australia, New Zealand, and Türkiye
• 1,200 mins local mins talktime, 1,200 local SMS

800GB (Reg. $19.95/month)

• 800GB local data for use in Singapore
• 15GB Data Roaming in Malaysia, Indonesia, and Thailand
• 4GB Int'l Roaming in South Korea, Philippines, Sri Lanka, Bangladesh, Australia, New Zealand, and Türkiye
• 1,400 mins local mins talktime, 1,400 local SMS

MyRepublic makes it easy to try their plans with a generous introductory structure: a free first month, followed by a promotional price for the next two months, before reverting to the original price. This offers a cost-efficient SIM-only plan for everyday use in Singapore, with prices starting well under $15 a month for their base 5G options.

11. RedONE SIM-only plans

RedONE, operating on the StarHub network, is one of the most popular providers for commuters and those who frequently travel to Malaysia, Thailand, and Indonesia, thanks to its cross-border calling benefits.

Best10 ($10.90/month)

• 250GB local data for use in Singapore
• 30GB Roaming in Malaysia, Thailand, and Indonesia
• 1GB ASEAN Roaming (e.g., Brunei, Laos, Vietnam)
• 500 mins Local Outgoing Calls, 100 IDD mins talktime, 200 local SMS, Free Caller Number Display

Best20 ($20.90/month)

• 500GB local data for use in Singapore
• 60GB Roaming in Malaysia, Thailand, and Indonesia
• 3GB ASEAN Roaming
• 1,000 mins Local Outgoing Calls, 250 IDD mins talktime, 500 local SMS, Free Caller Number Display

RedONE offers plans where the allowance for data, calls, and SMS is straightforward, ensuring you know exactly what you’re getting. Their Best10 plan at $10.90 is a highly competitive option that truly blurs the line between a local plan and a regional plan, making it simple to choose which SIM-only plan is the most affordable for your cross-Causeway commutes.

12. SIMBA SIM-only plans

SIMBA, the fourth facilities-based operator in Singapore, is famous for its generous data packages, inclusion of free voice roaming, and competitive IDD bundles, especially for regional neighbours.

400GB ($10 /30days)

• 400GB Local Data for use in Singapore, Malaysia, Indonesia, and Hong Kong
• 12GB APAC roaming, 3GB Int'l roaming in 60+ countries
• Unlimited outgoing calls to SG mobiles, 500 IDD mins + SG mins, 100 Myanmar mins
• Unlimited SMS between SIMBA mobiles, 100 local SMS, Free Caller ID

500GB ($12 /30days)

• 500GB Local Data, 18GB APAC roaming + China + South Korea, 8GB Int'l roaming
• Unlimited outgoing calls to SG mobiles, 600 IDD mins + SG mins, 100 Myanmar mins
• Unlimited SMS between SIMBA mobiles, 100 local SMS, Free Caller ID

500GB ($18 /30days)

• 500GB Local Data, 30GB APAC roaming + China + South Korea, 10GB Int'l roaming
• Unlimited outgoing calls to SG mobiles, 800 Local Fixed Line mins, 400 IDD mins, 100 Myanmar mins
• Unlimited SMS between SIMBA mobiles, 100 local SMS, Free Caller ID

600GB ($20 /30days)

• 600GB Local Data, 50GB APAC roaming + China + South Korea, 12GB Int'l roaming
• Unlimited outgoing calls to SG mobiles, 800 Local Fixed Line mins, 400 IDD mins, 100 Myanmar mins
• Unlimited SMS between SIMBA mobiles, 100 local SMS, Free Caller ID

SIMBA's primary appeal lies in its extremely high data volume for the price and the unique focus on IDD minutes to countries like Myanmar. Starting at just $10 a month, getting a high-data, affordable SIM card with guaranteed roaming and unlimited mobile-to-mobile calls is a compelling offer for locals with family in neighbouring countries.

13. Singtel’s SIM-only plans

Singtel's own-brand SIM-only plans target users who value network reliability and bundled digital services, rather than focusing purely on the lowest price tag. They are a good option for those seeking a premium experience.

Enhanced Lite ($30/month U.P. $35)

• 150GB local data for use in Singapore
• 400 mins outgoing calls, 400 SMS
• 12 months caller ID
• 3 months McAfee Mobile Security
• 3 months Disney+ Premium

Enhanced Core ($40/month)

• 300GB local data for use in Singapore
• 1GB roaming data in Asia
• 700 mins outgoing calls, 700 SMS
• Free caller ID
• 6 months McAfee Mobile Security
• 6 months Disney+ Premium

Singtel's strength lies in bundling lifestyle perks like Disney+ Memberships and security software. However, the starting price of $30 a month for the Enhanced Lite plan shows their data allowances are lower compared to MVNOs. You get less data, but more premium perks.

14. Starhub SIM-only plans

StarHub’s core SIM-only offerings are straightforward, aiming to give customers exactly what they need for a modern, connected lifestyle without unnecessary complexity. These plans focus on core essentials.

Star Plan M ($22/month)

• 150GB local data for use in Singapore
• 1GB roaming data to 5 locations
• 1,000 mins outgoing calls, 500 Local and international SMS
• 12 months ScamSafe subscription

Star Plan L ($32/month)

• 200GB local data for use in Singapore
• 5GB roaming data to 5 locations
• 1,500 mins outgoing calls, 750 Local and international SMS
• 12 months ScamSafe subscription

StarHub’s SIM-only plans give you just the essentials, clearly defining your usage limits so you always know what you’re paying for. Starting at $22 a month for the Star Plan M, the value here is in the simplicity and the included security features like the ScamSafe subscription.

15. VIVIFI SIM-only plans

VIVIFI, an MVNO on the Singtel network, is competitive by offering large data bundles with targeted and extended roaming perks, often aimed at users who need long-term regional connectivity.

Roam Value-5G ($15.20/month)

• 250GB local data for use in Singapore
• Data Roaming in Malaysia for 365 days, Free 3GB to Malaysia, Indonesia, Thailand, Philippines, Taiwan, and India
• 300 mins local mins talktime, 100 local SMS

VIBE-5G ($17.50/month)

• 310GB local data for use in Singapore
• Data Roaming in Malaysia and Indonesia for 365 days, Free 5GB to 13 APAC countries
• 588 mins local mins talktime, 100 local SMS

Roam My Super-5G ($22.50/month)

• 310GB local data for use in Singapore for first 12 months
• 600GB Data Roaming in Malaysia and Indonesia for 365 days
• Additional 10GB Data Roaming to Malaysia for first 12 months, 1GB Data Roaming to Indonesia and Thailand
• 5GB Data Roaming to Australia, China, Hong Kong, Japan, Macau, and 4 more countries
• 588 mins local mins talktime, 100 local SMS

VIVIFI offers decently priced SIM-only plans with targeted data roaming perks that extend to 365 days, which is great for frequent travellers. Starting at $15.20 a month for a 5G option, these plans offer peace of mind by giving you a rolling data pool for a year.

16. Zero1 SIM-only plans

Zero1 is famous for pioneering the concept of "unlimited data" in Singapore, albeit with managed speeds after hitting the initial high-speed cap. They offer a strong, affordable SIM-only plan option backed by the Singtel network.

Streamo Freedom ($15/month)

• 400GB local data for use in Singapore
• 15GB RoamAP roaming data (13 countries)
• 600GB Data Roaming in Malaysia, Indonesia, and Thailand for 365 days
• 600 mins local outgoing calls, 100 local SMS, Free Caller ID

Movemo Dash (5G) ($20/month)

• 500GB local data for use in Singapore
• 15GB RoamAP roaming data (13 countries)
• 600GB Data Roaming in Malaysia, Indonesia, and Thailand for 365 days
• 600 mins local outgoing calls, 100 local SMS, Free Caller ID

Zero1 offers an affordable SIM-only plan with decent coverage and data allowance for heavy users who don't mind slower speeds once the primary high-speed quota is used up. Their entry-level plan starts at a very low price, but the featured Streamo Freedom plan is priced at $15 a month, making it a competitive choice for the budget-conscious power user.

17. Zym Mobile SIM-only plans

Zym Mobile leverages the Singtel network to provide highly competitive and often promotional SIM-only plans, frequently bundling bonus roaming data and offering introductory 5G trials.

ROAM SAVER ($7.77/month)

• 5G Connectivity for 90 days (Promo)
• 200GB Local Data for use in Singapore
• 100GB Data Roaming for use in Malaysia
• 3GB Data Roaming in 6 Regions
• Unlimited incoming talktime, 300 mins local outgoing talktime, 100 local SMS, Free Caller ID

ROAM PLUS ($10.10/month)

• 5G Connectivity for 180 days (Promo)
• 300GB Local Data for use in Singapore
• 600GB Data Roaming for use in Malaysia and Indonesia
• 5GB Data Roaming in 13 Regions
• Unlimited incoming talktime, 1,000 mins local outgoing talktime, 100 local SMS, Free Caller ID

ROAM SMART ($15.10/month)

• 400GB Local Data for use in Singapore
• 600GB Data Roaming for use in Malaysia, Indonesia, and Thailand
• 15GB Data Roaming in 13 Regions
• Unlimited incoming talktime, 2,000 mins local outgoing talktime, 100 local SMS, Free Caller ID

ROAM ECO ($17.10/month)

• 500GB Local Data for use in Singapore
• 600GB Data Roaming for use in Malaysia, Indonesia, and Thailand
• 18GB Data Roaming in 13 Regions
• Unlimited incoming talktime, 1,000 mins local outgoing talktime, 100 local SMS, Free Caller ID

Zym's ROAM SAVER, starting at $7.77 a month, is easily one of the most cost-efficient SIM-only plans for everyday use in Singapore that falls under $10. However, be aware that the 5G connection for their entry-level plans is often only a trial, meaning you'll revert to 4G speeds after the promotional period.

How to Choose the Most Affordable Plan for Your Needs

After reviewing the competitive affordable SIM-only mobile plans in Singapore, it’s clear that Maxx and several MVNOs offer fantastic value. The key now is to look past the price tag and make an informed comparison of the plans by examining the features and fine print that matter most to your lifestyle. Knowing what to prioritise ensures you get the best SIM-only plan for you:

• True Data vs Throttled Data: Does the advertised high data volume come with guaranteed fast speeds, or will it throttle to a slow, unusable speed after the first few gigabytes?
• Talktime and SMS Limits: Check if the plan includes enough minutes for local calls and if the minutes are for fixed lines, mobile, or both.
• 4G vs 5G Speeds: If you stream 4K video or game heavily, 5G is the better choice for bandwidth and low latency.
• eSIM Compatibility: For dual-SIM users or newer phone models, ensure the plan is available as an eSIM for easy activation.
• IDD: Do you call family overseas? Check the included IDD minutes and the list of covered countries.
• Roaming Zones: Verify that the included roaming data covers the specific countries you visit most frequently, especially Malaysia, Indonesia, or Thailand.

To make this practical, think about your daily habits. Are you a student who mostly uses Wi-Fi, but relies on data for school projects? Do you have family overseas, making IDD non-negotiable? Or do you work in a job that may require frequent travel across the Causeway? Your profile defines the true value of a plan.

Most Affordable SIM-Only Plan for Light Data Users

Light users need plans that are strictly economical and require less than 50GB of data. These plans are perfect for young children, seniors, or as a secondary work phone line.

The verdict is that CMLink offers the lowest price entry at $7.70, but Maxx's $7.90 Online Exclusive is the most cost-efficient SIM-only plan by far, giving you over 290GB of combined SG-MY data for an extra 20 cents. This is ideal for a spare work phone or for young users, providing a huge safety net of data while keeping the monthly bill low.

Most Affordable SIM-Only Plan for Moderate Data Users

Moderate users spend a fair amount of time online, streaming music, and browsing social media, typically requiring 100GB to 300GB. This suits young adults doomscrolling or employees taking business calls on the go.

The verdict here is a three-way tie at $10.00 for the most affordable SIM-only plan. Maxx's 400GB 5G plan stands out by including guaranteed True 5G access and IDD minutes, making it the best SIM-only plan for users who value speed and international connectivity at a fixed, low price.

Most Affordable SIM-Only Plan for Heavy Data Users

Heavy users, such as mobile gamers, content creators, or streamers, need 400GB+ and robust roaming. The Maxx $12.00 True 5G plan provides 500GB of combined data across three countries (SG/MY/ID) and is tied with SIMBA for the lowest entry point in the 500GB+ market. This makes it an exceptionally price-competitive choice for heavy users, streamers, or gamers seeking high speed and maximum roaming coverage without a major financial commitment.

Conclusion

The selection process for your perfect plan requires more than just checking the price; it demands a clear understanding of the features hidden within. After exploring all the top MVNOs, it's clear that while many plans are cheap, Maxx remains a strong contender, offering superior data and roaming inclusions across the board. Our $7.90 Online Exclusive gives you nearly 300GB of SG-MY data, and our $10 and $12 5G plans are among the SIM-only plans with low cost monthly subscriptions in Singapore that guarantee True 5G access.

Remember to consider these factors when selecting your plan: ensure the data cap is not a throttled one, check that your preferred travel destinations are covered by the roaming allowance, and always verify if you need to pay extra for essential services like Caller ID (Maxx includes it for free!).

Ready to get maximum data for minimum cost? Visit Maxx today to secure our limited-time promotional pricing and port-in easily!

Frequently Asked Questions About Affordable SIM-Only Mobile Plans in Singapore