Cheapest SIM-Only Plans in Singapore 2025—Circles Life, MyRepublic, Zero1, SIMBA, Changi Mobile & More

Tired of being locked into a long-term phone contract? SIM-only plans offer a breath of fresh air for those who crave more flexibility and control over their mobile spending. 

Unlike the usual contracts that bundle new phones and lock you in for a minimum of two years, SIM-only plans are all about giving what you want – data, talk time, and the freedom to ditch the contract whenever you see fit. The virtual telco scene (e.g. Circles.Life, RedONE) is further amping up the competition, with even lower prices and an even wider range of data plans! 

With so many options at your disposal, you may face decision paralysis. We will explore the advantages of SIM-only plans currently available in Singapore, compare the key features, and guide you towards the plan that best aligns with your needs and financial requirements. 

 

First, what’s a SIM-only plan?

Essentially, a SIM-only plan offers you data, talk time, and SMS without the need to commit to buying a new phone, making it a cost-friendly option for those happy with their current devices. These plans come in all sizes, from small data packages for users who prioritise calls and texts to massive data allowances for streaming enthusiasts and avid gamers. More plans have incorporated international roaming as a handy perk for local  travel enthusiasts. 

Ultimately, the most appropriate plan will depend on your own needs, taking into consideration your data usage, call habits, and roaming requirements. Which plan will offer the most bang for your buck? We’ve compiled a list to help you find THE ONE. 

 

Here are 16 most affordable SIM-only plans $20 or less a month 

Plan	Monthly Subscription	Data	Outgoing Talktime (mins)	SMS
Zero1 Starter	$7.06	100GB	300	100
Zym Mobile Roam Saver 4G	$7.77	100GB	300	100
RedONE Amazing 8	$8.40	9GB	500	100
VIVIFI Lite	$9.00	3GB	500	20
Changi Mobile Value+	$10.00	180GB	200	50
SIMBA SuperRoam10	$10.00/30 days	200GB	Unlimited (local mobile only)	30
Heya by Singtel	$10.00	200GB	1100	1100
Geenet	$10.00	60GB	1000	100
M1 Maxx	$10.00	120GB	1000	100
GOMO (Singtel)	$10.18	10GB	100	100
Giga! (Starhub)	$10.19	20GB	300	300
CMLink (China Mobile)	$10.90	10GB	100	100
MyRepublic 4G Lite Basic Plan	$11.90	250GB	300	100
Circles Life 4G $15 Plan	$12.30	100GB	300	–
M1 200GB	$16.15	200GB	1100	1100
Starhub	$20.02	80GB	1000	1000

1. Zero1 SIM-only plans (from $7.06/month)

Zero1’s plans might not always be the fastest, but they’re definitely budget-friendly. You get ‘unlimited’ data, but speeds slow down after the first gigabyte. No worries though – you can still do all the essentials without worrying about being charged extra for data. 

Basic packs

• Zero1 Starter 4G Plus (S$7.06/month): 100GB to unlimited data, 300 minutes of talk time and 100 SMS.
• Z-One 4G Plus FE (S$10.10/month): 228GB, 300 minutes of talk time, 100 SMS, with additional roaming AP 3GB to territories outside SEA (i.e. Japan, South Korea, Australia, Hong Kong, Macau). 

Standard packs

• Z-One 4G Prime (S$12/month): 328GB data, 300 minutes of talk time, 100 SMS.
• Z-One 5G Prime (S$20/month): 378GB unlimited data, 300 minutes of talk time, 100 SMS with 5G enabled immediately.

Jumbo packs

• Zero1 Jumbo Go Prime (S$12.70/month added at checkout): 200GB data, 500 minutes of talk time, 50 SMS, 150 minutes IDD.
• Zero1 Jumbo IDD Plus (S$20.70 added at checkout): 400GB data, 800 minutes of talk time, 100 SMS, 500 minutes IDD. 

Note: When registering, you’ll need to pay a one-time fee of $10.80 for all of Zero1’s plans. 

 

2. Zym Mobile SIM-only plans (from $7.77/month)

Along with Zero1, Zym Mobile currently offers some of the most affordable SIM-only plans for both 4G and 5G networks. All their plans enable you to roll over your data from month to month, and all plans offer additional roaming data of up to 8GB if you’re in popular countries in Southeast Asia or East Asia. 

To further sweeten the deal, Zym Mobile draws you with attractive gifts when you subscribe to their plans, such as a $283 e-voucher and a 1x chance to win a Samsung A9+ Wifi worth $413 with all of its Roam 4G and Roam 5G plans. 

Roam 4G plans 

• Roam Saver 4G ($7.77/month): 100GB data + data rollover, 300 mins talktime, and 500 SMS. 
• Roam Plus 4G ($10.10/month): 200GB data + data rollover, 1000 mins talktime, and 100 SMS.
• Roam Smart 4G ($15.10/month): 200GB data + data rollover, 2000 mins talktime, and 100 SMS, with extra 10GB of roaming in Malaysia for 12 months then another 8GB forever.  

Roam 5G plans 

• Roam Eco 5G ($17.10): 200GB data + 1000 mins talktime, and 100 SMS. 
• Roam Power 5G ($22.10): 200GB data + 2000 mins talktime, and 100 SMS.

 

3. RedONE SIM-only plans (from $8.40/month)

RedONE is a Malaysian telco which offers yet another attractive SIM-only plans. You can choose from their 5 plans:

• redONE Super8 plan (S$8.40/month): 9GB data (8GB + 1GB bonus), 500 minutes of talk time, and 100 SMS.
• redONE Perfect10 plan (S$10.90/month): 100GB data, 500 minutes of talk time, and 200 SMS.
• redONE Super18 plan (S$18.90/month): 102GB data (100GB + 2GB bonus), 1,000 minutes of talk time, and 300 SMS.
• redONE Super28 plan (S$28.90/month): 153GB data (150GB + 3GB bonus), 1,500 minutes of talk time, and 500 SMS.
• redONE Super38 plan (S$38.90/month): 204GB data (200GB + 4GB bonus), 2,000 minutes of talk time, and 800 SMS.

RedONE’s biggest strength is that each plan comes with mobile data that can be used in Malaysia, ranging from 1GB Malaysia data in the Super8 plan and 4GB in the Super38 plan. Clearly, the plans are aimed at Malaysians or Singaporeans currently residing here. Besides that, their Perfect10 plan offers very good value-for-money. 

 

4. VIVIFI SIM-only plans (from $9/month)

VIVIFI is yet another virtual telco with 5 SIM-only plans to choose from:

• VIVIFI Lite 4G ($9.00/month): 3GB data, 500 minutes of talk time, and 20 SMS.
• VIVIFI Plus 4G ($11.50/month): 50GB data for 12 months, 400 minutes of talk time, and 200 SMS.
• VIVIFI Binge 4G ($18.00/month): 150GB data, 400 minutes of talk time, and 200 SMS.
• VIVIFI Plus 4G/5G ($19.00/month): 60GB data for 12 months, 400 minutes of talk time, and 200 SMS.
• VIVIFI Binge 5G ($25.50/month): 160GB data, 400 minutes of talk time, and 200 SMS.

While the first four SIM-only plans are pretty self-explanatory, we actually like the more expensive VIVIFI Share Plan the most. You can share this plan with up to 9 other users, with each additional user paying only $6.50/month. This arrangement can be especially suitable for couples with young children or elderly parents. 

Here’s an example of how the shared plan will be for a family of three: You pay the base price of $40.37 and an additional $12.12 to add 2 users. The total price comes up to $52.49, and all 3 users share a total of 180GB data. That comes up to an affordable $17.50/month per user. Not too shabby, especially if someone in your family doesn’t use much of their data quota.

 

5. Changi Mobile SIM-only plans (from $10/month)

These no-contract mobile plans are released by the folks behind Changi Travel Services, which is based at the airport. Here’s how the plans are fared: 

• FlexiLite ($10/month): 180GB, 200 mins talktime, 50 SMS with free 100 mins IDD call to Bangladesh, China, India & Malaysia. 
• FlexiGo ($15/month): 280GB, 500 mins talktime, 100 SMS with extra 3GB roaming data/ month offered 
• FlexiPlus ($15/month): 380GB, 800 mins talktime, 150 SMS, with extra 30GB roaming data/ month offered 
• FlexiMax ($15/month): 480GB, 1,000 mins talktime, 200 SMS, free 200 mins IDD call to Bangladesh, China, India & Malaysia​, with extra 63GB roaming data/ month offered

One perk is that they let you roll over your unused data for just a dollar. You don’t have to worry whether you have used up your month’s data allowance or still make your money’s worth. Additionally, there is a limited time offer that shaves off $5 for the FlexiGo plan, which you can find out more here. 

 

6. SIMBA SIM-only plans (from $10/month)

SIMBA (formerly TPG Singapore) aims to make a strong impression to locals by offering highly-competitive “spoil market” SIM-only plans. These plans provide exceptional value-for-money, and start from just $10/30 days for 200GB of data. Here’s a comparison of the 3 most affordable plans:

	SIMBA SuperRoam10	SIMBA SuperRoam12	SIMBA SuperRoam18
Price (per 30 days)	$10	$12	$18
Local data (SG-MY)	200GB	250GB	500GB
Data roaming (60+ countries)	3GB	7GB	10GB
Local fixed line minutes	400 minutes	500 minutes	800 minutes
IDD minutes (20+ countries)	200 IDD minutes	400 IDD minutes	400 IDD minutes
Local SMS	30 local SMS	100 local SMS	100 local SMS

All of the plans above also come with unlimited calls to local mobile numbers and free SMS to other SIMBA mobile lines.

SIMBA also has an online exclusive promotion: For $39/90 days, you get 300GB SG-MY data, 7GB data roaming and 600 local fixed line minutes. Find out more about their plans on the SIMBA website.

Note: Ensure your device is compatible with their VoLTE (Voice over LTE) technology. This typically means your device is a 4G/LTE phone that supports specific network bands (bands 8 and 40) or 5G (NR: n1). 

When in doubt, check out the list of compatible handsets published on SIMBA’s website.

 

7. heya by Singtel SIM-only plans (from $10/month)

Heya is a spinoff brand by Singtel, which is reassuring if you’re venturing away from the big three telcos for the first time in your life and want the guarantee of a decent network. They offer contract-free SIM-only plans that are quite affordable.

They have just one 30-day plan ($10/month) which comes with 100GB of data, 300 minutes of talktime and 50 SMS. All heya SIM cards are valid for 60 days and get auto-renewed whenever you purchase a 30-day heya Plan or heya IDD Add-on plan.

 

8. Geenet SIM-only plans (from $10/month)

Despite being relatively new, Geenet is well supported by one of Singapore’s major telecommunications networks, M1. You can put your trust in their reliable coverage and service. 

Moreover, your Geenet plan can be enhanced for just $5 with international call bundles (250 extra minutes add-on) and data roaming packages, making it ideal for expats to stay connected with loved ones overseas – particularly from Bangladesh, China, India, Indonesia, or Malaysia. Here are their basic plans:

• $10/month: 60GB local data (50GB + 10GB promo), 1,000 local minutes, 100 local SMS, unlimited local incoming calls, free Caller ID.
• $15/month: 3GB roaming data, 150GB local data (80GB + 70GB promo), 3,000 local minutes, 100 local SMS, unlimited local incoming calls, free Caller ID.
• $18/month: 3GB roaming data (can be used in Indonesia, Malaysia, Thailand), 150GB local data (80GB + 70GB promo), 3,000 local minutes, 100 local SMS, unlimited local incoming calls, free Caller ID.

Plans with IDD:

• $12/month: 120GB local data (60GB + 60GB promo), 120 IDD minutes, 1,000 local minutes, 100 local SMS, unlimited local incoming calls, free Caller ID, free data rollover.
• $18/month: 180GB local data (90GB + 90GB promo), 150 IDD minutes, 3,000 local minutes, 100 local SMS, unlimited local incoming calls, free Caller ID.
• $36/3 months: 360GB local data (180GB + 180GB promo), 360 IDD minutes, 3,000 local minutes, 300 local SMS, unlimited local incoming calls, free Caller ID.

 

9. M1 Maxx SIM-only plans (from $10/month)

M1 Maxx stands out for its free 30-days subscription to popular streaming platform Eazie TV along with a generous load of data, voice minutes and SMS for a low price. This is appealing for those in need of a flexible plan with robust, high-data usage: 

• 20GB Local Data FOREVER plan ($10/month): 290GB local data, 500 mins local outgoing calls, unlimited incoming calls, free SIM card & delivery.
• 250GB Local & 2GB Roaming FOREVER plan ($14/month): 300GB local data, 2GB roaming data (Malaysia, Indonesia, Thailand, Bangladesh), 500 mins local outgoing calls, unlimited incoming calls, 50 local SMS, free SIM card & delivery.
• 300GB Local & 4GB Roaming FOREVER plan ($18/month): 400GB local data, 4GB roaming data (Malaysia, Indonesia, Thailand, Bangladesh), unlimited local outgoing calls, unlimited incoming calls, 50 local SMS, free SIM card & delivery.

 

10. Giga! SIM-only plans (from $10.19/month)

Giga! is Starhub’s entrant on the virtual telco scene, and it offers several plans to choose from:

• $10.19/month for 20GB of data: 300 minutes of talk time and 300 SMS. Current promotion includes free 1GB gigaRoam APAC (One-time).
• $18.33/month for 200GB of data: (200GB for first 6 months), 800 minutes of talk time and 800 SMS which includes free 2GB gigaRoam APAC (One-time).
• $20.37/month for 200GB of data: (300GB for first 6 months), 1,000 minutes of talk time and 1,000 SMS. Current promotion includes free 2GB gigaRoam APAC (One-time).

The $20.37/month plan offers a ton of data at a relatively affordable price, so this should be your go-to plan if you need lots of data on a daily basis (eg. you’re frequently streaming YouTube/Netflix, gaming online, or working remotely). 

Giga! plans all roll over unused data for 2 months, which means you can theoretically get more data than you paid for. However, there is a cap of 10GB / 150GB / 200GB rollover data at any point in time for each of the 3 plans respectively.

 

11. Singtel’s GOMO SIM-only plans (from $10.18/month)

GOMO piggybacks on Singtel’s 4G and 5G networks. With Singtel being one of the three main telcos in Singapore, the GOMO sub-brand is trying to get a slice of the budget market share. The brand now offers three main plans:

• 4G Lite Plan—10GB ($10.18/month): 100 minutes of talk time and 100 SMS
• 4G Value Plan—250GB ($18.17/month): 500 minutes of talk time and 500 SMS (current promotion offers 2GB roaming data throughout Asia)
• 5G Plan with Rollover – 300 GB ($25.46/month): 1,000 minutes of talk time and 1,000 SMS (current promotion offers 300 GB for first 6 months and 200GB thereafter)
• (Additional) Neighbours Plan – 100GB ($30.56/month): 500 minutes of talk time, 500 SMS and 5 GB roaming data (current promotion offers 300 GB for first 6 months and 200GB thereafter, plus 5GB monthly roaming to Malaysia, Indonesia and Thailand).

These are no-contract plans. If you don’t mind staying on the 4G network, their 4G plans offer decent value if you absolutely need the security blanket of a Singtel product.

 

12. MyRepublic SIM-only plans (from $11.90/month)

MyRepublic continues to offer excellent value with its latest plans, featuring competitive pricing and frequent promotions despite some minor adjustments compared to previous periods’ offerings. Here are the current list of its comprehensive offerings: 

4G Plans

• 4G Starter Plan ($11.90/month): 250GB data + Unlimited Data, 300 minutes of talk time and 100 SMS.
• 4G Classic Plan ($14.90/month): 400GB data with Unlimited Data, 400 minutes of talk time and 400 SMS.
• Unlimited Plan ($25.90/ month): 10GB/day at full 4G speed, 2000 minutes of talk time and 2000 SMS. 

There’s a limited time offer of 188GB in the first 6 months, with 200 minutes of talk time and 100 SMS for the first 15,000 customers. You can see the full plan details here.

5G Plans

• 5G Standard Plan ($17.95/month): 250GB data with Unlimited Data, 1000 minutes, 1000 SMS and 5GB free roaming data.
• 5G Plus Plan ($19.95/month): 350GB data with Unlimited Data, 1200 minutes of talk time and 1200 SMS.
• 5G Ultimate Plan ($24.95/month for first 6 months, $29.95/month thereafter): Unlimited Data, 15GB/day on 5G speeds, 1,500 minutes, 1,500 SMS with additional free 5GB/ month exclusively in Malaysia, Indonesia, Thailand for 6 months.  

 

13. CMLink China Mobile SIM-only plans (from $10.90/month)

For newcomers, China Mobile has these SIM-only plans to offer:

• 20GB (S$10.90/month): 10GB roaming in China/Hong Kong, 100 local minutes, 100 local SMS, free incoming calls.
• 150GB (S$21.00/month): 30GB roaming in China/Hong Kong, extra 1GB roaming in select countries, 300 local minutes, 300 local SMS, 5G option available.
• 150GB with Free 5G (S$31.10/month): 40GB roaming in China/Hong Kong, 400 local minutes, 400 local SMS, free incoming calls.
• 200GB with Free 5G (S$41.20/month): 50GB roaming in China/Hong Kong, 500 local minutes, 500 local SMS, free incoming calls.

China Mobile is very much aimed at mainland Chinese living in Singapore or Singaporeans travelling abroad. All of its data can be shared across Singapore, mainland China and Hong Kong. Furthermore, they include local calls and separate overseas calls to China, Hong Kong, Malaysia, Indonesia, Thailand, and the USA.

 

14. Circles Life SIM-only plans (from $12/month)

If you rely heavily on social media for daily interactions, or are frequent travelers within Asia, Circles Life’s data-only plans for 4G and 5G may be right up your alley. Here are the various options to choose from:

Circles Life 4G plans

• Circles Life 4G Lite S$12 Plan (currently S$9.84 for 11 days): 20GB data, 300 minutes of talktime and unlimited incoming calls. 
• Circles Life 4G Standard S$15 Plan (currently S$12.30 for 11 days): 100GB data, 300 minutes of talktime, unlimited free incoming calls, and free 1GB roaming in select countries. 
• Circles Life 4G Borderless S$30/month: 100GB of data (across Singapore and 8 key Asian countries), 300 minutes local talktime, unlimited free incoming calls, free incoming local and roaming SMS, and free Caller ID.

Circles Life 5G plans

• Circles Life 5G Unrestricted S$18/month (currently S$14.76 for 11 days): 250GB of data, 300 minutes talktime, unlimited free incoming calls, and free 2GB roaming in select countries, with exclusive access to $10 movie tickers forever. 
• Circles Life 5G 500GB S$22/month: 500GB, free unlimited income and outgoing calls, free 2GB roaming forever in 8 countries, with exclusive access to $10 movie tickets. 
• Circles Life 5G Borderless (Multi-country plan) S$30/month: 100GB 5G access in 8 Asian countries, 300 minutes local talktime, unlimited incoming calls, and free local and roaming SMS. Price reverts to $37 after 3 months.
• Circles Life 1TB Special S$30/month (price revert to S$40/month after 3 months): 1TB on 5G speeds, unlimited incoming and outgoing calls, with exclusive access to $10 movie tickers forever. 

 

15. M1 SIM-only plans (From $16.15/month)

Shortly after Singtel’s GOMO and Starhub’s Giga!, M1 jumped on the SIM-only bandwagon. Instead of trying to ingratiate itself with millennials, M1 has simply split their original SIM-only offering into two separate plans:

• $16.15/month for 200GB 5G data (now $15 for a limited time): 1100 mins of talk time and 1100 SMS, unlimited weekend data.
• $19.18/month for 1TB 5G data (now $17.95 for a limited time): 1100 mins of talk time and 1100 SMS, unlimited weekend data, free 12 months subscription of FoneCare+ Lite (worth $8/month).

M1 only offers SIM-only plans under Maxx, which starts with a base of 200 MB data, 10 mins outgoing and incoming call time, and 50 outgoing SMS. The usual price for this recurring base plan is $5, but it’s waived to $0 until further notice. Add on 50GB Local Data, 500min outgoing calls, unlimited incoming calls and 50 SMS for an extra $12 per month.

 

16. Starhub SIM-only plans (from $20.02/month)

Starhub offers SIM-only plans with no contractual obligations. If you’re those who only trust and believe in the 3 main telcos because you think they are as legit as it gets, Starhub has several options. On their “Online SIM Only no contract plans” page, we see this offer:

• 4G – $20.02/month for 80GB data: 1,000 mins of talk time and 1,000 SMS (80GB for 1st 24 months, 30GB thereafter​). Currently, this plan offers 1-month cloud gaming on GeForce NOW for free through StarHub app subscription.

Then, if you navigate to their Star Plan page, we see further no-contract SIM only plans:

• [4G] Star Senior—$15/month for 20GB data: 1,000 mins of local talk time and 500 local and international SMS. This plan is designed for customers 60 years old and above.
• [4G] Star 22—$22/month for 100GB data: 1,000 mins of local talk time and 500 local and international SMS.
• [5G] Star 30—$30/month for 150GB data: 1,500 mins of local talk time and 750 local and international SMS.

 

Best SIM-only plans comparison 

Wondering which plan is best for you? Here’s a quick guide to help you decide the most-suited plan: 

Cheapest SIM-only plans for users with low data requirements 

Zero1 and Zym Mobile Roam Saver stand out as the most budget-friendly choices, particularly for those with low data consumption and seeking the most cost-effective subscription.  

Plan	Monthly Subscription	Data	Outgoing Talktime (mins)
Zero1 Starter	$7.06	100GB	300
Zym Mobile Roam Saver 4G	$7.77	100GB	300

While the fundamental offerings are identical, Zym Mobile leads with a slight advantage with its valuable user-friendly features such as monthly data rollover, 8GB bonus, and now complemented with a range of attractive gifts and vouchers. 

 

For those seeking around 100GB of data/ month or more in a budget

When choosing a SIM-only plan with 100GB of data or more per month for $10, consider your specific needs and priorities to determine the best option for you. Here are several situations that may fit your lifestyle: 

Choose SIMBA if…	Choose Changi Mobile if…	Choose heya by Singtel if…	Choose Geenet if…
– You frequently call local mobile lines (it’s unlimited with SIMBA!); – Your device is VoLTE compatible	– You want a balanced plan with data, minutes, and SMS; – You don’t mind that only 50GB of data is at full 4G speed	– You rarely use SMS and mainly use messaging apps; – You need 100GB of data and a moderate amount of talk time	– You require more data and talk time than average; – You’re willing to spend slightly more ($12/month) for higher allowances

Best credit cards for telco bills payment 

Did you know, charging your recurring telco bills to the right credit card can yield attractive rewards, with potential cashback ranging from 1.5% to 8%? Currently, there are two credit card types in Singapore that cater specifically to telco bill payments:

• Cards specific to major telcos: These cards offer rewards for payments to Starhub, Singtel, and M1.
• Cards covering a wider range: These cards include SIM Only Data Plans in their rewards programs. Typically, higher cashback rates are associated with increased minimum spending.

For instance, the Maybank Friends & Family Card offers up to 8% cashback on recurring bills from Starhub, Singtel, M1, Circles Life, and MyRepublic with a minimum spend of $800, and 5% cashback with a $500 minimum spend. 

Meanwhile, the OCBC 365 card provides 3% cashback on telco, utility, and electricity bills with an $800 minimum spend. For those already using a versatile primary card that excludes bill payments, the HSBC Advance card offers 1.5% cashback on telco bills with no minimum spend. 

Still not sure which card is right for you? Check out our comprehensive list of the best credit cards for telco bills here.

In conclusion 

Choosing the perfect SIM-only plan in Singapore can be an uphill battle with the torrent of options. As long as you are mindful of your data usage, call habits, and budget, you should easily narrow down and find the ideal plan. 

Remember, there’s no one-size-fits-all solution. We encourage you to take advantage of the free trials or introductory promos that some providers offer before committing. With these checked, you should be well on your way to finding the best SIM-only plan in Singapore that meets your needs.