| Data Usage Specifications | Unlimited data, 1GB, 2GB, 3GB, 5GB, 10GB, 15GB, 20GB |
| Transmission Specifications | 4G |
| Signal Coverage Area | Hong Kong, China |
| Mobile Carrier | ChinaMobile/ChinaUnicom/3/CTM |
| Supported Sizes | eSIM |
| Hotspot Sharing | Available |
| Supported Frequencies(4G) | B1(2100 MHz) |
| Top-Up Availability | Top-up unavailable |
| Excludes | Voice calls, Texts |
| Not Supported | SIM-locked device, Carrier-customized device, Mobile hotspot |
Please make sure to check whether the model of the mobile phone you want to use eSIM supports eSIM service before purchasing. [Refer to the detailed page]
If you are a customer who has a mobile phone protection service set up, you must cancel the SIM lock and mobile phone protection service at the customer service center or homepage of the telecommunication company you are using to use it.
After purchase, product information (QR code) will be sent via e-mail or AlimTalk, and exchanges and refunds are not possible after the QR code is sent or scanned.
In order to register the purchased eSIM product to the device, data must be available. (Cellular network or wifi connection mode)
If you delete the registered cellular plan after QR scanning, eSIM cannot be used, so please keep the plan until the end of use.
It can be installed in advance at the departure point, and the usage date starts from the point of connecting to the destination network.
If possible, change the data roaming of the domestic carrier you are using to OFF before departure. (Incorrect operation may result in roaming charges abroad.)
Depending on the communication environment of the local carrier, data usage may not be smooth in some areas, and depending on the model used, you may be connected to 3G or 2G if it does not match the frequency band of the local carrier.
Product options (data amount, days of use, promotions, etc.) may change without prior notice in accordance with the terms and conditions of the provider.
Once deleted, eSIM cannot be rescanned or restored. As above, refunds are not possible if you are unable to use the service due to your negligence or lack of familiarity with the user guide.
Exchanges and refunds are not possible after the QR code is sent or scanned.
No refunds will be made if service is unavailable due to network maintenance by the local carrier, natural disasters, or other reasons.
STEP 1. ▶Buy ◀
- Please select the desired eSIM data capacity and usage period.
- When your order is confirmed, a QR code will be sent to your email and mobile phone. (* If you do not receive it, please request again through the customer center and we will send it immediately)
*Orders placed between 09:00 and 18:00 will be shipped the same day every 4 hours. (If you order after 18:00, it will be shipped the next day. Depending on the amount of orders, the delivery time may be slightly delayed.)
STEP 2. ▶Setting◀
1. Settings > Open the Cerulean menu
- Select 'Add Cellular Plan'.
(A rate plan can be added only in a network environment)
2. Add Cellular Plan > Scan QR Code
- Scan the QR code image received by text and email.
- If you cannot scan the QR code, you can set it manually.
3. Designation of rate plan label and line used
[Plan Label]
- Existing SIM → Main
- eSIM (Local SIM) → Secondary (freely set for travel, work, etc.)
[default line]
- Existing SIM → Call/Message, iMassage/FaceTime
- eSIM (Local SIM) → Cellular Data (Switching Allowed OFF)
4. Settings > Cellular > Turn off Cellular Data Toggle
- When using overseas, use after blocking cellular data conversion so that the existing SIM (main) cannot be used as data
* If data roaming is turned on while the cellular rate plan is selected as 'main', roaming charges may be charged from the domestic carrier (main line).
5. APN manual setting (when data is unavailable)
- Settings > Cellular > Cellular plan > Select eSIM plan > Cellular data network
- In most cases, it is set automatically, but in some cases, you may need to change the APN information.
* For APN information, check the purchased product detail page
The China/Hong Kong/Macau eSIM provides immediate internet access upon arrival without the need for physical SIM card replacement. Travelers can activate it easily by scanning a QR code, eliminating the hassle of searching for local SIM cards. Since it's digital, there's no risk of losing a physical card, ensuring a smooth and connected travel experience across China, Hong Kong, and Macau.
Yes, the China/Hong Kong/Macau eSIM is specifically designed for use across all three regions: mainland China, Hong Kong, and Macau. This allows for continuous internet connectivity as you travel between these destinations without needing to switch eSIMs or purchase separate data plans, simplifying your trip planning and keeping you connected.
Activating your China/Hong Kong/Macau eSIM is straightforward. After your reservation is confirmed, you will receive a voucher with a QR code. Simply scan this QR code with your compatible device to install the eSIM profile. Ensure you have a stable internet connection during installation. Once installed, your device will connect to the local network, allowing you to use internet data immediately after arriving in the designated regions.
Yes, the China/Hong Kong/Macau eSIM offers data-only services. It is designed to provide seamless internet connectivity for activities such as browsing, using navigation apps, social media, and communication via data-based messaging apps. It does not include a local phone number for traditional calls or SMS, focusing purely on your data needs for travel.
The China/Hong Kong/Macau eSIM comes with an unlimited data plan, ensuring you stay connected throughout your trip without worrying about data caps. While the data is unlimited, please note that network providers typically implement a Fair Usage Policy. After exceeding a certain high-speed data threshold (e.g., daily 500MB or 1GB), speeds might be reduced to ensure fair access for all users, but you will still have continuous data access.
You can conveniently purchase the China/Hong Kong/Macau eSIM through KKday. The process is simple: select your desired plan, complete the booking, and then you'll receive a confirmation voucher with an eSIM QR code. KKday ensures a smooth and reliable booking experience, allowing you to quickly secure your eSIM without complications. Simply scan the QR code to install the eSIM.
To use the China/Hong Kong/Macau eSIM, your device must be eSIM-compatible and unlocked. Most newer smartphone models (e.g., iPhone XS/XR and later, Samsung Galaxy S20 and later, Google Pixel 3 and later) support eSIM technology. It is recommended to verify your specific device model's eSIM compatibility before purchasing to ensure a smooth setup and usage experience.
The China/Hong Kong/Macau eSIM is designed for rapid activation and use. It can typically be activated within 24 hours of purchase. Once purchased and the QR code is scanned for installation, you can connect to the internet immediately upon your arrival in China, Hong Kong, or Macau, ensuring you have instant connectivity without any waiting period.