CMLink is a telecommunications company that offers global data SIMs, with a mobile presence in Italy, Japan, Thailand, the United Kingdom and Singapore. The “CM” in CMLink is an abbreviation for “China Mobile”, which helps explain why CMLink SIM-only plans (which run on the Singtel network) have data allowances that are shareable across Singapore, Hong Kong and China, making them ideal for frequent flyers.
- Great roaming inclusions
- Affordable plans
- Singtel network access
- Average customer satisfaction
CMLink mobile SIM-only plans
CMLink offers a mix of 12-month contract and no-contract monthly SIM-only plans, however the inclusions are the same regardless of whether or not you opt for the contract version, so we recommend keeping flexible with the contract-free plans. All CMLink no-contract SIM-only plans have $0 registration fees, free local SIM delivery and free caller ID.
CMLink 4G plans
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#1
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CMLink
200GB 4G SIM Only
$7.70
Min. cost $7.70
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#2
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CMLink
300GB 4G SIM Only
$10.10
Min. cost $10.10
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CMLink offers two 4G plans, both of which can be upgraded to 5G access and an additional 10GB of local data for $5 extra each month. Both plans are competitive in their price ranges, particularly for roaming data inclusions.
The cheapest 4G CMLink plan in our database is the 200GB SIM Only. It costs $7.70 per month for 200GB of data for use in Singapore, mainland China, and Hong Kong, 5GB roaming data for use in Macau, Taiwan, Indonesia, Malaysia, Philippines and Thailand, a one-off 100GB additional Malaysia data (365-day expiry) after your first month, 300 local calls, and 100 local SMS.
Next up is the 300GB SIM Only, which costs $10.10 per month. For your money, you get 300GB of data for use in Singapore, mainland China, and Hong Kong, 12GB roaming data for all the destinations above plus Australia, Japan, South Korea, and Vietnam, a one-off 600GB of additional Malaysia and Indonesia data (365-day expiry) after your first month, 300 local calls, and 100 local SMS.
CM Link 5G plans
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#1
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CMLink
400GB 5G SIM Only
$15
Min. cost $15
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#2
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CMLink
450GB 5G SIM Only
$21
Min. cost $21
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#3
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CMLink
Unlimited 5G SIM Only
$31.10
Min. cost $31.10
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The cheapest 5G-enabled CMLink plan in our database is the 400GB SIM Only, which costs $15 per month for 400GB of 5G data for use in Singapore, mainland China, and Hong Kong, 20GB APAC roaming data, an additional 600GB Indonesia, Malaysia, and Thailand data (valid for 365 days) after your first month, 600 call minutes and 100 local SMS.
In the middle is the 450GB SIM Only plan. At $21 per month, it includes 450GB of 5G data for use in Singapore, mainland China, and Hong Kong, plus 15GB of APAC roaming data, an extra 600GB Malaysia data (valid for 365 days) after your first month, 800 local minutes, 300 international minutes from Singapore to mainland China, Hong Kong, Malaysia, Indonesia, Thailand, and USA, and 300 local SMS.
Finally, we have the Unlimited SIM Only plan, which costs $31.10 per month. It includes 500GB of max-speed 5G data before speeds are throttled to 512kbps for the duration of the billing cycle. You also get 40GB roaming data for use in mainland China and Hong Kong, 18GB APAC roaming data, an extra 600GB Malaysia data (valid for 365 days) after your first month, 1,000 local minutes, 400 international minutes to mainland China, Hong Kong, Malaysia, Indonesia, Thailand, and USA, and 500 local SMS.
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#1
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Zero1
Starter Prime 4G
$7.06
Min. cost $7.06
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#2
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Eight
Editor's Pick
Double Eight 4G SIM Only
$8
Min. cost $8
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#3
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SIMBA
Editor's Pick
SuperRoam 10 SIM Only
$10
Min. cost $10
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#4
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Maxx
290GB SIM Only
$7.90
Min. cost $7.90
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#5
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Singtel
$12 hi! 4G Monthly Plan
$12
Per 30 Day Renewal
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#6
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ZYM Mobile
Roam Saver 4G
$7.77
+ $3 Upfront
Min. cost $10.77
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How to sign up for a CMLink mobile plan
Follow these steps to sign up for a CMLink SIM-only plan:
- Click the ‘Go to Site’ button next to the corresponding CMLink plan that’s right for you.
- 200GB data
- on Singtel's 4G network
- 300 Minutes
- 100 Messages
- Deal: Free 100GB Malaysia roaming for 365 days for new sign-ups only
- 300GB data
- on Singtel's 4G network
- 300 Minutes
- 100 Messages
- Deal: Free 600GB Indonesia & Malaysia roaming for 365 days for new sign-ups only
- 400GB data
- on Singtel's 4G network
- 600 Minutes
- 100 Messages
- Deal: Free 600GB Thailand, Indonesia & Malaysia roaming for 365 days for new sign-ups only
- 450GB data
- on Singtel's 4G network
- 800 Minutes
- 300 Messages
- Deal: Free 600GB Malaysia roaming for 365 days for new sign-ups only and more
- Unlimited data
- on Singtel's 4G network
- 1000 Minutes
- 500 Messages
- Deal: Free 600GB Malaysia roaming for 365 days for limited time only
- On the CMLink website, use the ‘Sign Up Now’ button beneath your chosen plan to confirm selection.
- Optionally, select relevant add-ons, then choose whether you’d like to block overseas calls and/or SMS.
- Click the ‘Sign Up’ button to proceed and confirm any pop-up notifications.
- Select whether you’d like a new number or to keep your current one.
- Follow the next steps for email validation, personal information and payment details to complete sign-up.
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#1
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CMLink
200GB 4G SIM Only
$7.70
Min. cost $7.70
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#2
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CMLink
300GB 4G SIM Only
$10.10
Min. cost $10.10
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#3
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CMLink
400GB 5G SIM Only
$15
Min. cost $15
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#4
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CMLink
450GB 5G SIM Only
$21
Min. cost $21
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#5
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CMLink
Unlimited 5G SIM Only
$31.10
Min. cost $31.10
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CMLink mobile plan add-ons
Note that IDD call rates with CMLink vary based on the destination, and there aren’t any specific IDD add-ons. There is, however, a 1-Card-Multi-Number add-on for $5.10 per month that lets you link a Singaporean number to China and Hong Kong for receiving voice calls and SMS from those destinations.
CMLink also offers a selection of data and voice add-ons (all of which expire at 11:59pm on the last day of the month):
- 1GB local data for $2.
- 5GB local data for $4.
- 10GB local data for $7.10.
- 300 local call minutes for $6.10.
- 800 local call minutes for $10.10.
All CMLink SIM-only plans include data roaming for China and Hong Kong, plus separate roaming allowances for Indonesia, Japan, Macau, Malaysia, South Korea, Taiwan and Thailand. CMLink also offers a range of data roaming add-ons with 30-day expiries (all expire at 11:59pm on the 30th day):
- $3 for 1GB of data in China and Hong Kong.
- $10 for 4GB of data in China and Hong Kong.
- $15 for 6GB of data in China and Hong Kong.
- $3.50 for 1GB of data in Indonesia and Thailand.
- $6.50 for 8GB of data in Malaysia.
- $4 for 1GB of data in 10 destinations: Australia, Macau, Taiwan, Indonesia, Japan, Malaysia, Singapore, South Korea, Thailand and Vietnam.
- $16 for 4GB of data in 10 destinations: Australia, Macau, Taiwan, Indonesia, Japan, Malaysia, Singapore, South Korea, Thailand and Vietnam.
- $24 for 6GB of data in 10 destinations: Australia, Macau, Taiwan, Indonesia, Japan, Malaysia, Singapore, South Korea, Thailand and Vietnam.
- $12 for 5GB or $24 for 10GB of data in 18 destinations: Australia, Bangladesh, Cambodia, India, Indonesia, Israel, Japan, Macau, Malaysia, Nepal, New Zealand, Pakistan, Philippines, South Korea, Sri Lanka, Taiwan, Thailand and Vietnam.
- $24 for 10GB of data in 18 destinations (listed above).
- $24 for 6GB of data in 45 destinations: Armenia, Austria, Belgium, Bulgaria, Canada, Croatia, Czech Republic, Denmark, Estonia, Faroe Islands, Finland, France, Georgia, Germany, Greece, Guernsey, Hawaii, Hungary, Ireland, Isle of Man, Italy, Jersey, Kazakhstan, Kuwait, Kyrgyzstan, Latvia, Lithuania, Luxembourg, Mexico, Montenegro, Netherlands, Norway, Poland, Portugal, Romania, Russia, Saudi Arabia, Spain, Sweden, Switzerland, Turkey, United Arab Emirates, Ukraine, United Kingdom, and United States of America.
- $35 for 10GB of data in 45 destinations (listed above).
- $40 for 6GB of data in 78 destinations: Albania, Argentina, Armenia, Australia, Austria, Bangladesh, Belgium, Brunei, Bulgaria, Burkina Faso, Cambodia, Canada, Chile, Colombia, Costa Rica, Croatia, Czech Republic, Denmark, Ecuador, Egypt, Estonia, Fiji, Finland, France, Germany, Ghana, Greece, Hungary, Iceland, India, Indonesia, Ireland, Israel, Italy, Japan, Jordan, Kazakhstan, Kenya, Kuwait, Laos, Latvia, Lithuania, Luxembourg, Macau China, Malaysia, Mexico, Mongolia, Netherlands, New Zealand, Nigeria, Norway, Pakistan, Panama, Papua New Guinea, Peru, Philippines, Poland, Portugal, Qatar, Romania, Russia, Saudi Arabia, Slovakia, South Korea, Spain, Sri Lanka, Sweden, Switzerland, Taiwan China, Thailand, Timor-Leste, Turkey, United Arab Emirates, United Kingdom, Ukraine, United States of America, Uzbekistan, and Vietnam.
CMLink mobile customer service
CMLink has a middle-of-the-pack 3.7-star Seedly rating, with customers praising the network and porting process, but citing issues with the mobile app.
If you're experiencing issues and need assistance, there are a few options for you, including an online FAQ, online AI-only live chat, bilingual customer support hotline (dial 1602 from your CMLink number), email support ([email protected]), and in-person at one of their two service centres.
CMLink mobile FAQs
What network does CMLink use?
CMLink uses the Singtel network, with most plans defaulting to the 4G Singtel network, but some include 5G access (or you can pay extra for it on cheaper plans).
Where can I buy a CMLink SIM?
Use the WhistleOut comparison engine for a direct link to CMLink SIM plans.
How do I activate my CMLink SIM?
Visit the CMLink activation page to verify your personal information and email address, then activate your SIM.
