--- product_id: 15944625 title: "The Greatest China 30-Day Data SIM" brand: "china unicom中国联通" price: "£0.09" currency: GBP in_stock: false reviews_count: 13 url: https://www.desertcart.co.uk/products/15944625-the-greatest-china-30-day-data-sim store_origin: GB region: United Kingdom --- # Greater China coverage 30-day validity 4G network The Greatest China 30-Day Data SIM **Brand:** china unicom中国联通 **Price:** £0.09 **Availability:** ❌ Out of Stock ## Summary > 📱 Stay connected, stay trendy! ## Quick Answers - **What is this?** The Greatest China 30-Day Data SIM by china unicom中国联通 - **How much does it cost?** £0.09 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/15944625-the-greatest-china-30-day-data-sim) ## Best For - china unicom中国联通 enthusiasts ## Why This Product - Trusted china unicom中国联通 brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Travel Smart:** Perfect for globetrotters seeking reliable mobile data in Mainland China, Hong Kong, Macau, and Taiwan. - • **Fair Usage Policy:** Enjoy high-speed data up to 6GB, then maintain a steady connection at 128kbps. - • **Social Media Ready:** Access your favorite apps like Facebook, Twitter, and WhatsApp without restrictions. - • **Versatile SIM Design:** 3-in-1 SIM card fits any unlocked device - Nano, Micro, or Standard. - • **Stay Connected Anywhere:** Experience seamless connectivity across Greater China with unlimited data for 30 days. ## Overview The Greatest China 30-Day Data SIM offers unlimited 4G mobile data across Greater China for 30 days, compatible with any unlocked phone. It features a versatile 3-in-1 SIM design and allows access to popular social media platforms, ensuring you stay connected while traveling. ## Description Facebook, Twitter, Google is available in china via using this SIM card. This SIM card is valid for 30 days (3GB data) from the date of activation. Top up :HKD $180/30 days/3GB "English Version Setup guide" in package Review: Great data SIM for China! (tested mainland, Shanghai, Hong Kong) - Went to China for two weeks of travel, including rural southern mainland areas, Shanghai, and Hong Kong. I bought two SIM cards, one with calling minutes and this one was a backup. Lucky I did! This backup saved me, it worked immediately when put in (Android phone, unlocked). Other SIM did not work out of the box, you needed to have data already (!) to do a registration process with it that took about a day. I used this SIM to register the other one, and then found out the other SIM was so heavily sensored... even VPN connections were blocked. That other SIM was worthless, had to rely full time on this one (and no calling). This SIM wasn't blocked at all that I could tell, was able to access my VPN and use the internet fully. Had good connection everywhere I went and it really saved the trip (Google translate needs data for image translation!) Barely used half the data but it was well worth it. Excellent instructions for installation and setup also. I read in another review the customer support is nonexistent and I never had to use them, so I can't comment, but the instructions are well thought out and clearly done by someone really fluent in English rather than translated like my other SIM. Review: Worked Perfectly with Pixel 3A - Worked great for a 10 day trip. No VPN required to access Google, Facebook or Instagram. Easy to install, just follow the instruction on the paper that comes with the sim card, just need to change the access point. To check your data balance dial *115*50# and you will receive a text with data used and remaining data. Even though it states is 6GB, when I receive the text message it state it is actually 8GB total, so that is even better. I only used about 3GB total, so did not check if it was actually 8GB total (mainly used it for Facebook, Instagram and a couple of YouTube videos). Speed was fast. It was really helpful because even if you use WIFI with VPN, the connections are not that good, and VPN did not always work. Therefore I just preferred using the SIM over the WIFI. Only remember: unlocked phone required, no Voice or Text with this Sim, only data. ## Features - Facebook, Twitter, Google is available in china via using this SIM card. - This SIM card is valid for 30 days (3GB data) from the date of activation. - Top up :HKD $180/30 days/3GB - "English Version Setup guide" in package ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00Z2IMAD0 | | Brand | China unicom中国联通 | | Cellular Technology | LTE | | Customer Reviews | 4.0 out of 5 stars 208 Reviews | | Item Weight | 0.02 Pounds | | Manufacturer | China Unicom | | Mfr Part Number | CU-GC | | Model Number | CU-GC | | Service Provider | China Unicom | ## Product Details - **Brand:** China unicom中国联通 - **Service Provider:** China Unicom - **Cellular Technology:** LTE ## Images ![The Greatest China 30-Day Data SIM - Image 1](https://m.media-amazon.com/images/I/61lW7U2SeHL.jpg) ![The Greatest China 30-Day Data SIM - Image 2](https://m.media-amazon.com/images/I/717lgdvKRGL.jpg) ![The Greatest China 30-Day Data SIM - Image 3](https://m.media-amazon.com/images/I/41vlXIZ7WFL.jpg) ![The Greatest China 30-Day Data SIM - Image 4](https://m.media-amazon.com/images/I/71udUfVH+LL.jpg) ## Questions & Answers **Q: What's the latest "activate by" date if i order it today (oct/nov 2020)?** A: It should be 30 June 2021 **Q: I see the description has changed saying it is 6bg instead of 3gb. i purchased on july 7. so is mine 6gb or 3gb? if purchased now is it 6gb?** A: China Unicom totally upgraded cards from 3gb to 6gb.Even if you receive a 3gb packaged card, you will receive a 6gb sms activation message when you active the card. **Q: Can I use this card in iPad?** A: Yes,you can. **Q: can you add data to this card? And how much would it be?** A: Yes, the SIM card can be re-charge/top-up with HK$180 for renewing 30 days Greater China data package subscription. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great data SIM for China! (tested mainland, Shanghai, Hong Kong) *by B***L on September 1, 2019* Went to China for two weeks of travel, including rural southern mainland areas, Shanghai, and Hong Kong. I bought two SIM cards, one with calling minutes and this one was a backup. Lucky I did! This backup saved me, it worked immediately when put in (Android phone, unlocked). Other SIM did not work out of the box, you needed to have data already (!) to do a registration process with it that took about a day. I used this SIM to register the other one, and then found out the other SIM was so heavily sensored... even VPN connections were blocked. That other SIM was worthless, had to rely full time on this one (and no calling). This SIM wasn't blocked at all that I could tell, was able to access my VPN and use the internet fully. Had good connection everywhere I went and it really saved the trip (Google translate needs data for image translation!) Barely used half the data but it was well worth it. Excellent instructions for installation and setup also. I read in another review the customer support is nonexistent and I never had to use them, so I can't comment, but the instructions are well thought out and clearly done by someone really fluent in English rather than translated like my other SIM. ### ⭐⭐⭐⭐⭐ Worked Perfectly with Pixel 3A *by M***L on December 6, 2019* Worked great for a 10 day trip. No VPN required to access Google, Facebook or Instagram. Easy to install, just follow the instruction on the paper that comes with the sim card, just need to change the access point. To check your data balance dial *115*50# and you will receive a text with data used and remaining data. Even though it states is 6GB, when I receive the text message it state it is actually 8GB total, so that is even better. I only used about 3GB total, so did not check if it was actually 8GB total (mainly used it for Facebook, Instagram and a couple of YouTube videos). Speed was fast. It was really helpful because even if you use WIFI with VPN, the connections are not that good, and VPN did not always work. Therefore I just preferred using the SIM over the WIFI. Only remember: unlocked phone required, no Voice or Text with this Sim, only data. ### ⭐⭐⭐⭐ Worked in at least 1 of the 2 provinces.. *by F***. on September 17, 2019* Install: 5 star This card worked on my Samsung Galaxy S10e once I inserted the SIM in. I did have to turn on DATA ROAMING. Speed/Usability: 5 star The speeds (LTE) were quicker than any WiFi I connected to in China. Facebook, WhatsApp, Gmail, Google all worked. Reception/availability: 4 star I traveled in Guangdong Province, and there weren't any dead spots. I had reception at pretty much every location. It was a different story when I got to Liaoning Province. The phone worked at the airport, but as soon as I travelled a couple km/miles away from the airport, the connection went dead. There are only very small sweet spots that I'll get reception again, and when I say very small, I'm talking about in single digit feets. (Within 2 feet radius) it's very strange. Had to switch to wifi which limited my "searches" on Bing.com or Yahoo. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/15944625-the-greatest-china-30-day-data-sim](https://www.desertcart.co.uk/products/15944625-the-greatest-china-30-day-data-sim) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-03*