Samsung Galaxy S24 eSIM China: How to Activate

To activate an eSIM on your Samsung Galaxy S24 for a trip to China, you simply need to purchase a compatible plan, scan the provided QR code in your phone's 'SIM Manager' settings, and enable data roaming. This process grants you immediate access to 5G networks and, crucially, allows you to bypass the Great Firewall to use apps like Google, Instagram, and WhatsApp without a VPN. By using a specialized travel eSIM, you avoid the exorbitant daily roaming charges typically imposed by UK carriers like EE, Vodafone, and O2.

Why the Samsung Galaxy S24 is the Perfect Travel Companion for China

The Samsung Galaxy S24 series, including the S24+ and S24 Ultra, is arguably the best hardware for a trip to mainland China. Unlike older devices that might struggle with specific local frequency bands, the S24 is a global powerhouse. It supports the essential 5G bands used by China’s major carriers, including N41, N78, and the high-frequency N79.

When you land in a tech-forward city like Shanghai or Shenzhen, your S24 will automatically seek out the strongest signal. China has the world's most extensive 5G infrastructure, and the S24’s modem is designed to take full advantage of it. However, hardware is only half the battle. To actually use the internet as you do at home, you need a data solution that routes your traffic outside of China’s domestic censorship system. This is where a ChinaRoam eSIM becomes essential.

Bypassing the Great Firewall Natively

If you buy a local physical SIM card at an airport in Beijing or Guangzhou, you will be subject to the 'Great Firewall.' This means no Gmail, no YouTube, no Instagram, and no Facebook. While some travelers try to use VPNs, these are frequently blocked or suffer from extreme latency during political events or holidays.

ChinaRoam provides a more elegant solution. Because the data is technically 'roaming' through international servers, your Samsung S24 treats the connection as an international gateway. This allows you to access the open internet natively. You can post photos of the best specialty coffee shops in Shanghai directly to your Instagram stories without toggling a VPN on and off, which also saves significant battery life on your device.

Choosing Your ChinaRoam Plan

Before you fly, you should see plans to determine which data package fits your itinerary. Travelers have different needs based on the length of their stay and their reliance on data-heavy apps like maps and video streaming.

Fixed Data Plans

For those who want a set amount of data for the duration of their trip, fixed plans are available in various sizes:

• Short trips: 1GB (7 days) or 2GB/3GB (15 days).
• Standard vacations: 5GB, 10GB, or 20GB (30 days).
• Long-term stays: 50GB available for 30 or 180 days.

Daily Pass Options

If you are a power user who spends all day on TikTok or navigating via high-resolution maps, daily passes might be more suitable. These provide a fresh bucket of high-speed data every 24 hours (ranging from 0.5GB to 10GB per day), after which the speed is capped at 384 Kbps or 512 Kbps until the next day starts.

It is important to note that these are data-only plans. They do not come with a local Chinese (+86) phone number. However, since they support high-speed data, you can make WhatsApp calls, use FaceTime, or use the calling features within WeChat and Alipay without any issues.

Step-by-Step Activation on Samsung Galaxy S24

Activating your eSIM is best done while you still have a stable Wi-Fi connection, ideally just before you leave for the airport or while waiting at your departure gate. You can check if your device is compatible before purchasing, though all international S24 models support eSIM technology.

1. Purchase your plan: Once you see plans and complete your purchase, you will receive a QR code via email.
2. Open Settings: On your S24, go to Settings > Connections.
3. SIM Manager: Tap on SIM Manager.
4. Add eSIM: Select Add eSIM and then tap Scan QR code from service provider.
5. Scan the Code: Point your camera at the QR code provided by ChinaRoam. If you are viewing the code on the same device, you can select 'Open from Gallery' to upload a screenshot of the QR code.
6. Confirm Add: When prompted, tap Add to register the eSIM profile to your device.
7. Label your SIM: It is helpful to rename the new eSIM to 'ChinaRoam' or 'Travel' to distinguish it from your primary UK SIM.

Crucial Step upon Arrival: Once you land in China, go back to Settings > Connections > Mobile networks and ensure that Data Roaming is turned ON for the ChinaRoam eSIM. Without this, the eSIM will not be able to connect to the local Chinese towers.

Local Carriers and Coverage Realities

ChinaRoam plans utilize the top three networks in the country: China Mobile, China Unicom, and China Telecom. Your S24 will typically switch between these automatically to provide the best possible coverage.

• China Mobile: This is the world's largest carrier. They have the most extensive coverage in rural areas and mountainous regions. If you are visiting the Zhangjiajie National Forest or remote parts of Yunnan, China Mobile is your best bet.
• China Unicom: Historically the most compatible with international phone hardware. In major cities like Beijing, Shanghai, and Shenzhen, Unicom provides exceptional 5G speeds.
• China Telecom: Often provides excellent indoor coverage in massive shopping malls and underground metro systems.

In Tier 1 and Tier 2 cities, you can expect 5G coverage almost everywhere, including inside elevators and deep within the subway system. If you find your speed is lagging, you can manually select a different network in your S24's 'Mobile Networks' settings.

UK Roaming vs. ChinaRoam eSIM

For British travelers, the temptation to simply use an EE, Vodafone, or O2 roaming 'add-on' is high. However, the costs are usually prohibitive. Most UK networks charge between £6 and £8 per day for a measly 500MB or 1GB of data. Over a two-week trip, this can add over £100 to your phone bill.

Feature	UK Carrier Roaming (EE/O2/Vodafone)	ChinaRoam eSIM
Daily Cost	High (£6 - £8+)	Very Low (Prepaid)
Data Allowance	Often capped at 500MB/day	Up to 50GB or 10GB/day
Network Speed	Often throttled to 4G/3G	Full 5G access
Censorship	Usually uncensored	Uncensored (Outside GFW)
Flexibility	Contract-bound	No contract, easy top-ups

For a more detailed breakdown of these differences, you can read our guide on UK Data Roaming vs China eSIM: Cost Comparison.

Navigating China with Your S24

Once your eSIM is active, your Samsung Galaxy S24 becomes a powerful tool for navigating the complexities of Chinese travel. Since you have uncensored data, you can continue to use Google Maps, though be aware that Google Maps' data in China is often outdated or slightly offset due to the GCJ-02 coordinate system.

We recommend using your data to download and sign up for Alipay and WeChat. These apps are essential for payments, as China is virtually a cashless society. With your ChinaRoam eSIM, you can link your UK credit card to Alipay and verify your identity via SMS (using your primary UK SIM) while using the eSIM for the data connection.

If you ever run out of data while exploring, you can simply log back into the website and purchase a top-up. The how to set up guide explains how to manage your data usage so you are never left stranded without a connection in the middle of a busy Chinese metropolis.

The bottom line

The Samsung Galaxy S24 is a 5G beast that is perfectly suited for the advanced telecommunications landscape of mainland China. By choosing a ChinaRoam eSIM, you unlock the ability to use your phone exactly as you do at home—with access to all your favorite apps and lightning-fast 5G speeds—without the 'bill shock' of UK carrier roaming. Activate your plan before you fly, and you'll be connected the moment your wheels touch the tarmac in China.