Vietnam eSIM | Native Viettel 5G/4G 5GB Daily | ChatGPT Supported
- The router is provided by Viettel, Vietnam's largest telecommunications company. Simply scan and install it before you depart, and you can enjoy high-speed local data once you arrive!
- Once you receive the voucher, you can scan it and install/use it without having to travel back and forth to pick up a physical card or wait for it to be mailed to you.
- The network router is provided by Viettel, a local Vietnamese telecom provider, and is more stable and reliable than roaming eSIM.
Package Options
What You Can Expect
SIM Card Specifications
| Data Usage Specifications | 5GB |
| Transmission Specifications | 5G/4G |
| Signal Coverage Area | Vietnam |
| Mobile Carrier | Viettel |
| Supported Sizes | eSIM |
| Hotspot Sharing | Available |
| Supported Frequencies(4G) | B3（1800 MHz） |
| Top-Up Availability | Top-up unavailable |
| Not Supported | SIM-locked device, Carrier-customized device, Pocket WiFi,flat |
| Network Type | Local |
Purchase Notice
- Telecommunications network quality varies from country to country, and base station coverage is not as dense as in Taiwan. Each country also has its own regional and telecommunications infrastructure differences. Therefore, refunds cannot be requested based on signal conditions in a few specific areas.
- In order to maintain network quality, telecommunications companies strictly adhere to the principle of fair use of network communications. Controlling large amounts of network traffic within a short period may result in internet access disruptions or slower speeds.
Includes/Excludes
- eSIM
Reminders
Before installing an eSIM, please ensure you are connected to Wi-Fi or mobile data to scan a QR code or manually enter it to join the mobile plan. (After updating your iPhone to iOS 17, you can directly select "Open Photos" to scan the QR code in the image on your phone to install.)
Please follow the instructions for installation. Do not exit the installation process during the process, otherwise your phone may mistakenly delete the eSIM plan.
A QR code can only be scanned once by one mobile phone, and cannot be changed after being bound.
If an error message is displayed after scanning, it does not mean the eSIM is invalid. Please restart your device and check on the mobile service page to see if the eSIM is already bound to your phone, or contact customer service for assistance. Do not scan other QR codes without authorization, as this may cause duplicate binding and lead to eSIM invalidation.
Once an eSIM is ordered, it must be activated within 30 days. Otherwise, it will automatically expire and cannot be refunded or extended.
Please delete the profile on your iPhone (check steps: Settings -> General -> Device Management, scroll to the bottom; if there is no profile, it's normal), to avoid any issues with its use.
eSIM plans that are not fully used or deleted without customer service verification cannot be reissued or refunded.
Days are calculated as follows: After successfully connecting to the internet in Vietnam, the day is calculated using the Vietnam local time calendar. Midnight (GMT+7) is counted as one day, not a 24-hour clock.
Telecommunication network quality varies from country to country, and base station coverage is not as dense as in Taiwan. Each country has its own regional and telecommunications infrastructure differences, so we cannot request a refund based on signal conditions in a few areas.
If you are unable to use the service upon arrival at your destination, please contact customer service. After-sales service cannot be provided after you return to your home country.
eSIM usage check: Send the text message "KTTK" to 191.
How to Use
Use period
- Once an eSIM is ordered, it must be activated within 30 days. Otherwise, it will automatically expire and cannot be refunded or extended.
Installation steps:
Method 1: Scan QR Code
Method 2: Manually add SM-DP_Address and ActivationCode
Activation steps:
1. After arriving at your destination, turn off all other SIM cards and only enable eSIM.
2. Configure the eSIM's APN (usually the APN is automatically recognized; if it cannot be automatically recognized, you need to set it manually).
APN: v-internet
Cancellation Policy
- Once the order has been completed, it cannot be canceled, modified, or refunded
- Due to time zone differences, the confirmed cancellation date is based on the supplier’s local time. Please allow 2–5 business days to process your cancellation request, after which the cancellation fee will be charged according to the product’s cancellation policy. Once your refund request is confirmed, KKday will initiate the refund to your original payment method within 15 days. The actual refund timing depends on your card-issuing bank’s policy.
