--- product_id: 623298628 title: "Happy - China, Macau, Hong Kong 30 Days Unlimited Data Travel Sim (4G 15GB)" brand: "happy telecom" price: "€ 36.36" currency: EUR in_stock: true reviews_count: 8 category: "Happy Telecom" url: https://www.desertcart.hr/products/623298628-happy-china-macau-hong-kong-30-days-unlimited-data-travel store_origin: HR region: Croatia --- # 3-in-1 Multi-Region Coverage 150MB Free 1-Day USA Test 15GB 5G High-Speed Data Happy - China, Macau, Hong Kong 30 Days Unlimited Data Travel Sim (4G 15GB) **Brand:** happy telecom **Price:** € 36.36 **Availability:** ✅ In Stock ## Summary > 🌐 Stay Connected, Stay Ahead — Travel Smart with Happy Telecom! ## Quick Answers - **What is this?** Happy - China, Macau, Hong Kong 30 Days Unlimited Data Travel Sim (4G 15GB) by happy telecom - **How much does it cost?** € 36.36 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/623298628-happy-china-macau-hong-kong-30-days-unlimited-data-travel) ## Best For - happy telecom enthusiasts ## Why This Product - Trusted happy telecom brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Risk-Free Trial:** Test your SIM with a complimentary 150MB data pass valid for 1 day in the USA on T-Mobile’s reliable network before you travel. - • **Social Media Freedom:** Access Google, WhatsApp, Facebook, Instagram, YouTube, Twitter, and more without VPN—stay socially connected wherever you roam. - • **Lightning-Fast 5G Data:** Enjoy up to 15GB of blazing 5G LTE data for 30 days, perfect for streaming, uploading, and staying connected without limits. - • **Plug & Play Convenience:** No registration needed—just insert the SIM upon arrival, turn off WiFi, and you’re instantly online with automatic network selection. - • **Seamless Global Connectivity:** One SIM, three powerhouse networks—China Unicom, 3Macau, and Happy/CSL Hong Kong—covering your entire Greater China trip effortlessly. ## Overview Happy Telecom’s 3-in-1 SIM card offers 30 days of unlimited data with 15GB at full 5G speed across China, Hong Kong, and Macau. It supports major social apps without VPN, requires no registration, and includes a free 1-day 150MB test in the USA on T-Mobile. Designed for hassle-free travel connectivity, it’s the perfect companion for millennial professionals seeking seamless global internet access. ## Description Product description Happy Sim Happy Telecom Our Journey Together We understand that staying connected is an indispensable part of life, whether you're at home or travelling. For over 10 years, we've been helping our Hong Kong community communicate with loved ones easily and affordably. Now, we would like to bring your our committed values and be your travel partner in enabling your every trip to have a hassle-free experience. We are Here to Help! High-speed Data We ensure smooth internet access during travel. Stay Happy in Travel Record all the delicious food during the trip and post it on all social media platforms. You can upload your itinerary at any time and any place. Customer Hotline If you encounter any problems during your travels, we have a professional team that can assist you. Handset Setting Turn on the roaming data in order to use the data services Operator locked, sim locked, regional locked devices NOT supported Insert the SIM into the mobile phone upon arrival at the destination For 4G Sim Card: Ensure wifi is OFF at this moment; flight mode is OFF; network mode DON'T select 5G & set to LTE/3G/2G For dual SIM phone, SIM slot 1 is highly recommended for our SIM Review: Great Sim card. Everything is as advertised! - Easy to setup & use. Worked very well for my trip to Central China end of 2025. No issue connecting to Google etc, and hotspot worked great (a feature that sim cards from many other provider don't have). Plus, price is very reasonable. Review: Easy to use and works great - Once I arrived in China, I swapped this SIM card with the US SIM card in my phone, and the phone easily found the carrier signal once turned on. I went to three cities on the trip, Beijing, Haikou and Hong Kong, and I encountered no connection issues. In the SIM card instruction or maybe on the product page on desertcart, it mentioned somewhere that real name registration is required in Hong Kong prior to arrival. I tried to do that, but the website asked for a phone number or a data storage card number. Since this is a data only SIM, the number format did not match anything on my phone, so I did not complete the registration process. Nonetheless, the SIM card worked just fine in Hong Kong without registration. All the data rate came at 4G. I could access all my US social media app and news sites, and I could do Facetime with people in US. The only time I ran into a problem was at a local restaurant, where I needed to scan a QR code to access the menu and make the order. I just could not open their site using the QR code. I think the reason was due the default search engine setting in my phone web browser. I am guessing the restaurant was not listed under Google or Bing. If had changed the search engine to a local Chinese one, it may have worked. I did not get to test it because my local friends made the order using their phone. One other word of caution is that this is a data only SIM without a local phone number. Establishing a Chinese mobile payment account (Alipay or We Chat) and making mobile payment will be difficult because real time verification with a local phone number is necessary. ## Features - 🎁FREE Test: 150MB 1Day in USA. You can make sure your sim works well before your trip & use T-Mobile network operator. Please test it before 1 day you're leave. Please contact us if have any problem. - ▶ China Unicom (China) I CTM/3Macau (Macau) I Happy/CSL (Hong Kong) 3 in 1 SIM- plug and use, no registration is required- unlimited data service, after the usage reaches 15GB, service continues at a throttled speed of 128kbps- the service 30 days starts from the date of activation - ▶ Our product can be used without any registration and covers all national number under country code 86 in China, including Tibet and Xinjiang. The product must be activated before its expiration date of December 31, 2026. - ▶ Wait for 1-2 minutes, it should be automatically connected to the network; in case if it is not, please turn OFF the AUTO search network and manually choose the assigned network – China Unicom (China) / CTM/3Macau (Macau) / Happy/CSL (Hong Kong) - ▶ Insert the SIM into the mobile phone upon arrival at the destination, Ensure wifi is OFF at this moment; flight mode is OFF; network mode is set to 5G/LTE/3G/2G. Operator locked, sim locked, regional locked devices NOT supported. - ▶ Our SIM card provides mobile data service only and does not include a phone number. You can make or receive calls solely through data-based mobile applications such as WhatsApp, Line, WeChat, and similar platforms. - ▶ Access Google, Facebook, Instagram, Youtube, Twitter & More: Stay connected with full access to your favorite apps and websites, including Google, Instagram, Twitter, and WhatsApp while traveling. - ▶ Popular apps and social media are supported (except TK-TK); vpn is not required, Hotspot is supported but do not guarantee all devices work, Turn ON your mobile phone with roaming and data are both ON ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CYSGV4B6 | | Best Sellers Rank | #43,936 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #95 in Cell Phone SIM Cards | | Brand | HAPPY TELECOM | | Cellular Technology | 5G/4G LTE | | Customer Reviews | 4.1 out of 5 stars 50 Reviews | | Item Dimensions L x W | 4"L x 2"W | | Manufacturer | Happy Telecom | | Number of Items | 100 | | Product Dimensions | 4"L x 2"W | | Service Provider | China Unicom; 3Macau; CLS | | UPC | 799793601609 | | Warranty Description | 1 yeear | ## Product Details - **Brand:** HAPPY TELECOM - **Cellular Technology:** 5G - **Product Dimensions:** 4"L x 2"W - **Service Provider:** Happy Telecom - **UPC:** 799793601609 ## Images ![Happy - China, Macau, Hong Kong 30 Days Unlimited Data Travel Sim (4G 15GB) - Image 1](https://m.media-amazon.com/images/I/81OyKiWnPfL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Sim card. Everything is as advertised! *by B***E on May 16, 2026* Easy to setup & use. Worked very well for my trip to Central China end of 2025. No issue connecting to Google etc, and hotspot worked great (a feature that sim cards from many other provider don't have). Plus, price is very reasonable. ### ⭐⭐⭐⭐⭐ Easy to use and works great *by R***D on November 14, 2024* Once I arrived in China, I swapped this SIM card with the US SIM card in my phone, and the phone easily found the carrier signal once turned on. I went to three cities on the trip, Beijing, Haikou and Hong Kong, and I encountered no connection issues. In the SIM card instruction or maybe on the product page on Amazon, it mentioned somewhere that real name registration is required in Hong Kong prior to arrival. I tried to do that, but the website asked for a phone number or a data storage card number. Since this is a data only SIM, the number format did not match anything on my phone, so I did not complete the registration process. Nonetheless, the SIM card worked just fine in Hong Kong without registration. All the data rate came at 4G. I could access all my US social media app and news sites, and I could do Facetime with people in US. The only time I ran into a problem was at a local restaurant, where I needed to scan a QR code to access the menu and make the order. I just could not open their site using the QR code. I think the reason was due the default search engine setting in my phone web browser. I am guessing the restaurant was not listed under Google or Bing. If had changed the search engine to a local Chinese one, it may have worked. I did not get to test it because my local friends made the order using their phone. One other word of caution is that this is a data only SIM without a local phone number. Establishing a Chinese mobile payment account (Alipay or We Chat) and making mobile payment will be difficult because real time verification with a local phone number is necessary. ### ⭐⭐⭐⭐ It works great if they set it right. *by L***O on April 20, 2025* I am back USA now. Before I left for China Guangzhou through Hongkong, I tested it in USA, it didn't work. So I emailed the seller, he told me it will work in Hongkong airport. So when I arrived at Hongkong airport, it didn't work. So I emailed to the seller again, he told me he will reset it. Several hours later when I was in Guanzhou, it worked seamlessly. And when I backed to Hongkong airport several days ago, it still worked great. It means you need ask them make a good setting if you don't want have a problem. By the way, the seller told me that I shouldn't provide any personal information for sim registration. Weird! Online or product guide asked use to scan a code to fill in personal information for registration. So in this case, don't register it.!!!!! ## Frequently Bought Together - Happy China Sim Card | Mainland China, Hong Kong, Macau 30Days Unlimited Data Travel Sim Card | 15GB of 4G LTE High-Speed Data Then 128kbps | Support Google, Whatsapp, Facebook, Instagram and More - Greater China Data Sim Card 30 Days 12Gb Then Unlimited for China, Macau can f/b --- ## 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.hr/products/623298628-happy-china-macau-hong-kong-30-days-unlimited-data-travel](https://www.desertcart.hr/products/623298628-happy-china-macau-hong-kong-30-days-unlimited-data-travel) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-11*