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The best SIM-only mobile phone plans
Category Provider DataPrice From
Best SIM-only mobile plan: Value eight 388GB $8/mth
Best SIM-only mobile plan: Everyday use SIMBA 400GB$10/mth
Best SIM-only mobile plan: Heavy use M1 1,000GB$14.95/mth
Best prepaid mobile plan M1 750GB $25/mth
Best SIM-only plan for international calls SIMBA 500GB $20/mth

Pricing refers to the minimum total cost for the first month.

Gone are the days when the mobile market was dominated by the three major telcos (Singtel, StarHub, and M1). Over the years, the market has seen a number of mobile virtual network operators (MVNOs) who’ve managed to offer similar—or even better—inclusions at a very comparable price range.

SIM-only plans are a great choice for the person who’s happy with their current handset or equally willing to buy their next smartphone outright. Compared to big providers, there tend to be more SIM-only plans on offer from MVNOs. And that greater range of plans leads to a great mix of competitive pricing, deals and discounts, and tight competition on the all-important data and roaming fronts.

Moreover, there are providers that offer capped speeds if you go over your monthly data allocation, so no bill shock. Scroll on to check our top picks of the best SIM-only plans in Singapore this month.

Best SIM-only mobile plan Singapore: Value


Eight
Eight
Editor's Pick

Double Eight 4G SIM Only

  • 388GB data
  • 588 Minutes
  • 88 Messages
  • International Roaming
$8.00
Min. cost $8

This month, eight stands out as our pick for the best affordable SIM-only plan, offering an incredibly generous $8 package that’s perfect for both local use and frequent travel.

  • 388GB data for use in Singapore and Malaysia
  • 588 local minutes (with free incoming calls and caller ID)
  • 88 local SMS (with free incoming SMS)
  • 10GB APAC roaming data and 2GB international roaming data
  • 288 IDD minutes (plus 88 Myanmar minutes)
  • VoLTE call roaming (288 incoming minutes, 288 outgoing minutes)

Also consider:

Not sold on eight's plan? MyRepublic and Maxx also offer great value plans with generous data and roaming inclusions.

#1
Zero1
Zero1

Starter Prime 4G

  • 200GB data
  • 300 Minutes
  • 100 Messages
  • International Roaming
  • Deal: Roam Malaysia 100GB for 365 days
$7.06
Min. cost $7.06
#2
CMLink
CMLink

200GB 4G SIM Only

  • 200GB data
  • 300 Minutes
  • 100 Messages
  • International Roaming
  • Deal: Free 100GB Malaysia roaming for 365 days for new sign-ups only
$7.70
Min. cost $7.70
#3
VIVIFI
VIVIFI

Roam Value 4G

  • 200GB data
  • 300 Minutes
  • 100 Messages
  • International Roaming
$7.70
Min. cost $7.70
#4
ZYM Mobile
ZYM Mobile

Roam Saver 4G

  • 200GB data
  • 300 Minutes
  • 100 Messages
  • International Roaming
  • Deal: Free eVoucher worth $190 + Use promo code 'WHISTLEOUT' to get 3x chances to win Galaxy Buds 3, worth $258
$7.77
+ $3 Upfront
Min. cost $10.77
#5
Maxx
Maxx

290GB SIM Only

  • 290GB data
  • 500 Minutes
  • 99 Messages
  • International Roaming
  • Deal: Online Exclusive: $7.90 promotional price for the first 12 cycles for new sign-ups and number port-ins
$7.90
Min. cost $7.90
#6
Eight
Eight
Editor's Pick

Double Eight 4G SIM Only

  • 388GB data
  • 588 Minutes
  • 88 Messages
  • International Roaming
$8.00
Min. cost $8

Best SIM-only plan Singapore: Everyday use


SIMBA
SIMBA
Editor's Pick

SuperRoam 10 SIM Only

  • 400GB data
  • Unlimited National Calls
  • 100 Messages
  • International Roaming
$10.00
Min. cost $10

SIMBA takes the crown this month with an excellent value offer, boasting the only 5G network access in its category, along with unlimited local calls and some generous roaming and international call inclusions for $10 per month.

  • 400GB data for use in Singapore, Malaysia, and Hong Kong
  • Unlimited local calls to Singapore mobile
  • 100 local SMS (with free incoming SMS)
  • 12GB APAC roaming data and 3GB international roaming data
  • 500 IDD/fixed line minutes (plus 100 Myanmar minutes)
  • VoLTE roaming (using IDD allowance)

Also consider:

Maxx and eight also have competitive plans around the same price, albeit without 5G access.

#1
Maxx
Maxx

400GB SIM Only

  • 400GB data
  • 500 Minutes
  • 50 Messages
  • International Roaming
$10.00
Min. cost $10
#2
SIMBA
SIMBA
Editor's Pick

SuperRoam 10 SIM Only

  • 400GB data
  • Unlimited National Calls
  • 100 Messages
  • International Roaming
$10.00
Min. cost $10
#3
VIVIFI
VIVIFI

Vibe 4G

  • 300GB data
  • 588 Minutes
  • 100 Messages
  • International Roaming
  • Deal: Free 5G Trial for 6 months (non-Singtel port in)
$10.00
Min. cost $10
#4
ZYM Mobile
ZYM Mobile

Roam Plus 4G

  • 300GB data
  • 1000 Minutes
  • 100 Messages
  • International Roaming
  • Deal: Free eVoucher worth $190 + Use promo code 'WHISTLEOUT' to get 3x chances to win Galaxy Buds 3, worth $258
$10.10
+ $3 Upfront
Min. cost $13.10
#5
Eight
Eight

Fortune Eight 4G SIM Only

  • 488GB data
  • 688 Minutes
  • 128 Messages
  • International Roaming
$11.80
Min. cost $11.80
#6
Zero1
Zero1

Jumbo Joy

  • 401GB data
  • 701 Minutes
  • 201 Messages
  • Deal: Free 5G trial for 6 months
$12.70
Min. cost $12.70
#7
CMLink
CMLink

400GB 5G SIM Only

  • 400GB data
  • 600 Minutes
  • 100 Messages
  • International Roaming
  • Deal: Free 600GB Thailand, Indonesia & Malaysia roaming for 365 days for new sign-ups only
$15.00
Min. cost $15

Best SIM-only mobile plan Singapore: Heavy use


M1
M1
Editor's Pick

5G SIM Only 300GB

  • 1024GB data
  • 1000 Minutes
  • 1000 Messages
  • Deal: Bonus 724GB is for local data usage + $3 off first 3 months for new sign-ups and port-ins only
$17.95
Min. cost $14.95

M1 retains the win this month with an unbeatable bonus data promotion that blows the competition out of the water, along with plenty of local calls, SMS and 5G network access. It normally costs $17.95 per month, but the first three months are reduced to $14.95 per month.

  • 1,000GB data
  • 1,000 local minutes
  • 1,000 local SMS (with free incoming SMS)
  • 5G network access
  • Unlimited data on weekends for 12 months free

Also consider:

SIMBA and VIVIFI offer less data, but plenty of roaming inclusions that M1's plan lacks.

#1
SIMBA
SIMBA
Editor's Pick

SuperRoam 12 SIM Only

  • 500GB data
  • Unlimited National Calls
  • 100 Messages
  • International Roaming
$12.00
Min. cost $12
#2
MyRepublic
MyRepublic

5G Basic $16.95

  • 650GB data
  • 1200 Minutes
  • 1200 Messages
  • International Roaming
  • Deal: For new number & Non-M1port-in sign-ups
$16.95/mth
Min. cost $16.95
#3
ZYM Mobile
ZYM Mobile

Roam Eco 5G+

  • 550GB data
  • 1000 Minutes
  • 100 Messages
  • International Roaming
  • Deal: Free eVoucher worth $190 + Use promo code 'WHISTLEOUT' to get 3x chances to win Galaxy Buds 3, worth $258
$17.10
+ $3 Upfront
Min. cost $20.10
#4
M1
M1
Editor's Pick

5G SIM Only 300GB

  • 1024GB data
  • 1000 Minutes
  • 1000 Messages
  • Deal: Bonus 724GB is for local data usage + $3 off first 3 months for new sign-ups and port-ins only
$17.95
Min. cost $14.95
#5
Zero1
Zero1

Jumbo Pro 5G

  • 701GB data
  • 1001 Minutes
  • 201 Messages
$20.40
Min. cost $20.40
#6
redONE
redONE

Best 20

  • 650GB data
  • 1000 Minutes
  • 500 Messages
  • International Roaming
$20.90
Min. cost $20.90
#7
Giga
Giga

500GB 5G SIM Only

  • 500GB data
  • 1000 Minutes
  • 1000 Messages
  • International Roaming
  • Deal: Refer & Earn $6 gigaBucks (3X More!): enjoy $6 off your 1st month using your friend's referral code
$20.90
+ $2.04 Upfront
Min. cost $22.94

Best prepaid SIM plan in Singapore


M1
M1

750GB Tourist eSIM

  • 750GB data
  • 5000 Minutes
  • 400 Messages
  • International Roaming
$25.00
Per 28 Day Renewal

Only in Singapore for a short while? M1 is our pick this month for the best prepaid eSIM plan, with 750GB 5G data, calls and SMS, as well as roaming data for $25 per month.

  • 750GB 5G data for use in Singapore, Malaysia, Indonesia, Hong Kong, Macau, and Taiwan
  • 5,000 local minutes
  • 400 local SMS
  • 5GB roaming data for use in Bangladesh, China, India and Thailand
  • 400 IDD minutes to call Bangladesh, China, India, Indonesia, Malaysia, and Thailand

Also consider:

Singtel and eight's prepaid plans are also solid picks.

#1
Singtel
Singtel
Editor's Pick

$30 5G+ Enhanced Tourist SIM

  • Unlimited data
  • Unlimited National Calls & SMS
  • International Roaming
$30.00
Starter Pack
28 Day Expiry
#2
StarHub
StarHub

$30 Traveler+ Data eSIM

  • Unlimited data
  • No Calls Included
  • International Roaming
$30.00
Starter Pack
28 Day Expiry

Best SIM plan with international calls in Singapore


SIMBA
SIMBA
Editor's Pick

SuperRoam 12 SIM Only

  • 500GB data
  • Unlimited National Calls
  • 100 Messages
  • International Roaming
$12.00
Min. cost $12

SIMBA is our pick this month for the best SIM-only plan with international calls in Singapore. Got family and friends scattered around the world? No worries—this $12 per month plan includes IDD minutes to 21 countries, including Australia, China, Indonesia, Malaysia, New Zealand, Thailand, USA and more.

  • 500GB data for use in Singapore, Malaysia, Indonesia, Thailand, and Hong Kong
  • Unlimited minutes to Singapore mobile
  • 600 IDD/fixed line minutes to 20+ countries (plus 100 Myanmar minutes)
  • 100 local SMS
  • 18GB APAC roaming data and 8GB international roaming data
  • VoLTE roaming (using IDD allowance)

Also consider:

Don't need quite that many countries on your call list? Check out StarHub or eight instead.

#1
Maxx
Maxx

500GB SIM Only

  • 500GB data
  • 500 Minutes
  • 50 Messages
  • International Roaming
$12.00
Min. cost $12
#2
SIMBA
SIMBA
Editor's Pick

SuperRoam 12 SIM Only

  • 500GB data
  • Unlimited National Calls
  • 100 Messages
  • International Roaming
$12.00
Min. cost $12
#3
Eight
Eight

Lucky Eight 5G SIM Only

  • 588GB data
  • 688 Minutes
  • 128 Messages
  • International Roaming
$14.80
Min. cost $14.80
#4
VIVIFI
VIVIFI

Roam Max 5G+

  • 600GB data
  • 1000 Minutes
  • 300 Messages
  • International Roaming
$19.95
Min. cost $19.95
#5
Zero1
Zero1

Jumbo Pro 5G

  • 701GB data
  • 1001 Minutes
  • 201 Messages
$20.40
Min. cost $20.40
#6
redONE
redONE

Best 20

  • 650GB data
  • 1000 Minutes
  • 500 Messages
  • International Roaming
$20.90
Min. cost $20.90
#7
M1
M1

750GB Tourist eSIM

  • 750GB data
  • 5000 Minutes
  • 400 Messages
  • International Roaming
$25.00
Per 28 Day Renewal
#8
CMLink
CMLink

Unlimited 5G SIM Only

  • Unlimited data
  • 1000 Minutes
  • 500 Messages
  • International Roaming
  • Deal: Free 600GB Malaysia roaming for 365 days for limited time only
$31.10
Min. cost $31.10
#9
StarHub
StarHub

5G Unlimited+ Core

  • Unlimited data
  • Unlimited National Calls & SMS
  • International Roaming
$38.00
Min. cost $38

How we chose the best SIM plans each month


At WhistleOut, we take the job of recommending our monthly winners and runners-up very seriously. That’s why we have a dedicated team that reads dozens of plan documents each week to spot hundreds of plan changes in our database every month.

We tend to lean towards SIM-only plans with no contracts because it’s easier to switch mobile providers when a better option comes along, but there's a wide array of factors we take into consideration:


Price

We consider overall price not just promotional pricing. 

We evaluate price in terms of first-year value, which helps separate great pricing from a limited-time promotion that may not offer better value in the long run. 



Data

To choose the best SIM-only deals we use included monthly local data.

This helps determine the overall dollar-to-data value. 

We also take into account if that data is 4G or 5G.



Roaming

Singapore is a land of frequent flyers and travellers, so we prioritise plans with roaming inclusions

While the focus is on roaming data, extra points are given to plans with voice and SMS roaming

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