Greater China Unicom (8 or 15 Days) Prepaid SIM

Name: Greater China Unicom (8 or 15 Days) Prepaid SIM
Rating: 4.72 (1618 reviews)

8 Days, 12GB | 15 Days, 15GB | Usable in China and Macau | Hotspot | Use before 30/06/2027

RM56.00

~~RM62.00~~

RM56.00 Save RM6.00 (10%)

Shipping calculated at checkout.

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8 Days 12GB

15 Days 15GB

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MUST READ BEFORE BUYING
You must activate this SIM in Malaysia before you fly.

1. Where to activate. Insert and activate the SIM while you are still in Malaysia, before you leave. If you only insert it after you land in China, activation fails and the SIM cannot be used at all.

2. Where it works. China and Macau only. It does not work in Hong Kong or Taiwan.

3. Use it within 30 days. Once activated in Malaysia you must land and start using it in China or Macau within 30 days.

Activating in Malaysia does not start your plan. Your 8 or 15 days of data begin only when you land in China or Macau.

How to activate, in Malaysia, before you fly

Insert the SIM into slot one. On a dual SIM phone it must be slot one.
Turn on Mobile Data and Data Roaming, then open any website.
Leave the SIM in for 5 to 20 minutes until an activation SMS arrives. That SMS is your confirmation that it worked.
Use the SIM in China or Macau within 30 days of activation.

No registration required. Access popular apps in China without a separate VPN. Gemini AI is unavailable. TikTok works on iPhone only and is not available on Android. Networks are China Unicom in China and CTM in Macau. Data only, so no calls or SMS. Hotspot is supported.

Total 12GB or 15GB Data

Cut off once data is used up
8 days or 15 Days

Validity starts when you land in China or Macau, not when you activate. Each day ends at 12am GMT +8.
No Registration Needed

No registration required. You must still activate the SIM in Malaysia before you fly.

No phone number, Cannot call and SMS
Usable in China and Macau only. Does not work in Hong Kong or Taiwan. Hotspot is supported.
Activate the SIM in Malaysia before you fly, then use it in China or Macau within 30 days. If you only insert it after you land, it will not work.
Access popular apps in China without a separate VPN. Gemini AI is unavailable. TikTok is supported on iPhone only and is unavailable on Android.

Country List

China (China Unicom)

Macau (CTM)

Product FAQ

How do I activate this SIM?

In Malaysia, before you fly. Insert the SIM into slot one, turn on Mobile Data and Data Roaming, then open any website. Leave it in for 5 to 20 minutes until an activation SMS arrives. That SMS confirms activation is complete.

Can I activate it after I land in China?

No. Activation only works while you are outside China. If you wait until you have landed, activation fails and the SIM cannot be used at all. Activate it in Malaysia before you fly.

How long do I have after activating the 8 day plan?

30 days. You must use the SIM in China or Macau within 30 days of activating it in Malaysia, so activate close to your departure rather than weeks ahead.

Does this SIM work in Hong Kong or Taiwan?

No. This SIM covers China and Macau only. For Hong Kong or Taiwan please use our Hong Kong or Taiwan plans instead.

How good is the network coverage of this SIM card?

In China you are on the China Unicom network, one of the country's largest operators. In Macau you are on the CTM network.

I am travelling to both China and Macau. Do I need to change any settings?

No. Just keep Data Roaming on and it switches over automatically. If it does not pick up a network when you arrive, search manually and connect to China Unicom in China or CTM in Macau.

If I finish my data, can I still surf at a slower speed?

No. Data stops once the 12GB or 15GB allowance has been used. There is no reduced speed afterwards.

Can I top up data?

Only on the 15 day plan. Instructions to top up are in the packaging. The 8 day plan cannot be topped up.

How do I check my remaining data?

dial *118*55#.

Facebook is blocked in China. Can I still access it with this card?

Yes. Popular apps work without a separate VPN. Gemini AI is unavailable, and TikTok is supported on iPhone only.

Can I use WhatsApp to chat and make calls with this card?

Yes, and calling over WhatsApp saves you money. Note that this SIM is data only, so it has no phone number and cannot make normal calls or send SMS.

Is the data inside this card enough for my usage?

An average person uses about 4GB (4000MB) of data over a 15 day period. Usage is likely to be lower when travelling overseas for leisure, as most of the time will be spent sightseeing or participating in outdoor activities.

What are the shipping rates and how long will it take for my purchase to arrive?

Find out more information on our shipping and delivery here.

Can I use this SIM card in a new phone?

Make sure you make at least 10 to 15 minutes calls and receive calls to unlock the phone so it can be used with overseas SIM cards.

Speed Test Results


Chunxi Road, Chengdu, Sichuan, China (2023)	Dujiangyan City, Chengdu, Sichuan, China (2023)

Shanghai, China (2023)	Beijing, China (2023)

Speed-test results are for reference only and may vary by location, device, network conditions and time of use.

View Installation Guide

5 stars: 1345 (83%)
4 stars: 179 (11%)
3 stars: 46 (3%)
2 stars: 17 (1%)
1 star: 31 (2%)

Greater China prepaid sim

Easy to use. Good and stable connections at allocation. Highly recommend.

Greater China Unicom (8 or 15 Days) Prepaid SIM

Very Convenience and the coverage is good.
Will purchase for my next trip.

Greater china unicom

Easy to activate smooth usage not connection problem

Greater China unicorn

Very smooth in accessing internet using hello1010. Being using hello1010 for the past 5 years, very satisfied. Being travelling to Europe, UK, Vietnam, Thailand, China, NZ, middle east… very awesome with hello1010

Great China Unicom

Excellent coverage and high speed

Greater China Unicom prepaid sim

Overall the coverage is good.

Greater China Unicom 8 Days

Worked great throughout the trip to Chengdu Jiuzhaighou

China sim card

Seamless. Easy to use. Great.

4th purchased

This is the 4th time i bought from them. And this sim works well. Enough for me to use 2 weeks in China. Able to use insta, facebook, netflix youtube etc.. will continue to use their service

Ease of Use

After i change the sim while i otw to china (inside the aircraft) , when i reach just turn off the airplane mode and instantly get connected with correct setting. Very easy.

Greater China Unicom travel sim card

Generally, the coverage is good. And very convenient.

Stop from service

I bought for 15days but why suddenly stop service and suppose end of on 17/3/25. But data I bought is 10gb and only use up 2.56gb, feel disappointed which everytime travel oversea sure support Hello.

10gb china SIM card

Always good, no interruption at high land. No problem at jiuzhaigoa, huanglong and emei golden peak

Greater China Unicorn (8 or 15 Days)

Excellent coverage everywhere in Xiamen, Shantou and Guangzhou. Easy activation and able to access google, WhatsApp, Facebook without any problems. Highly recommended. Will definitely purchase again.

Greater China Unicom Prepaid SIM - reliable

Reliable and good coverage.

Greater China Unicom 15 days

Excellent internet commection even when at the height 4K++ meter above sea level.

Easy and no problem to use

Very fast delivery. Friday bought and Saturday received. sure will buy again for this china sim card.

Greater China

Used in Yunan, perfect coverage in Lijiang, Dali, Shangrila, Ancient town, unlike some of my friends who struggled with frequent line drop using Malaysia roaming plan.