More and more iPhone users are switching to eSIM for its convenience and stronger security, and it is especially handy for international travel. However, not every iPhone version can use an eSIM – including the Hong Kong version, one of the most common iPhone variants in Vietnam. This article answers the question of whether the Hong Kong iPhone supports eSIM and explains what to do if you want to use an eSIM when traveling abroad.
What is the Hong Kong iPhone?
The Hong Kong iPhone is the version that Apple officially distributes specifically for the Hong Kong market.
The most noticeable feature of this version – as well as the models sold in mainland China and Macau – is support for two physical SIM cards (Dual Physical SIM). This lets you use two different phone numbers at the same time without needing eSIM technology.
How to identify a Hong Kong iPhone
You can identify a Hong Kong iPhone by its model number, which usually ends in ZP/A. Some Vietnamese users prefer this version for the convenience of two physical SIM slots, even though it comes with certain limitations when it comes to eSIM.
Does the Hong Kong iPhone support eSIM?
The answer is no. Dual-physical-SIM iPhone models made for and officially sold in Hong Kong (as well as mainland China and Macau) do not support eSIM.
Apple designed this version to support two physical SIMs only, rather than combining a physical SIM with an eSIM as other international versions do.
This is not a software restriction but entirely a matter of hardware design. Hong Kong iPhones simply don't include the chip or components needed to recognize and activate an eSIM.
As a result, on a Hong Kong iPhone you won't find the “Add eSIM” option under Cellular Settings. This means you cannot use any kind of eSIM on the device, including international travel eSIMs.
Hong Kong iPhone models that don't support eSIM
Whichever iPhone you own from the XS/XR onward, if it is the dual-physical-SIM version made for the Hong Kong market, you won't be able to use an eSIM on it. The rare exceptions are some compact single-tray models such as the iPhone 12 mini, iPhone 13 mini and iPhone SE (2nd and 3rd generation) sold in Hong Kong/Macau – these still have eSIM, so check your own device carefully.
The same applies to newer models such as the Hong Kong iPhone 14 and iPhone 15. All of them are designed to support two physical SIMs only.
► See also: Check whether your phone supports eSIM
Hong Kong iPhone vs. international versions
Unlike the Hong Kong iPhone, almost all other international iPhone versions – such as the US (LL/A), Singapore (ZA/A) and Japanese (J/A) models – support eSIM.
Some versions even let you use two eSIMs at once, or one eSIM alongside a physical SIM. This makes it easy for owners of international iPhones to use a travel eSIM without removing their main SIM – a real advantage abroad, especially for anyone who often travels across several countries.
To make things clearer, here is a comparison of eSIM support across popular iPhone versions:
| iPhone model | International version (excl. HK/China/Macau) | Hong Kong/China/Macau version |
|---|---|---|
| iPhone XS/XR and later | Supports eSIM | Does NOT support eSIM (except some mini/SE models) |
| iPhone 14/15 (US version) | eSIM ONLY | Does NOT support eSIM |
What should Hong Kong iPhone users do when traveling?
Since the Hong Kong iPhone doesn't support eSIM, you won't be able to use a travel eSIM. However, you still have effective options for staying connected abroad.
1. Buy a local physical SIM
This is the best and most popular option for Hong Kong iPhone users.
You can buy a physical SIM before your trip in Vietnam through shops, travel agencies or e-commerce platforms.
Alternatively, you can buy one directly at the airport, at convenience stores or supermarkets at your destination. Keep in mind that SIM cards sold at airports are usually more expensive than those bought elsewhere or purchased in advance in Vietnam.
- Pros: Easy to find and compatible with almost all devices. Usually affordable, with a wide range of plans to choose from.
- Cons: You may need to remove your Vietnamese SIM (if your phone has only one SIM tray) or give up one SIM slot for the travel SIM (if you use two SIMs). Registering your personal details can be complicated, or you may face a language barrier when buying a SIM abroad.
2. Use international roaming
You can contact your mobile carrier in Vietnam to activate international roaming. With roaming, you keep your main phone number to receive important calls and messages, and use mobile data directly on your main SIM while abroad.
- Pros: Extremely convenient – no SIM swapping or extra setup needed.
- Cons: Usually very expensive, so it isn't suitable for long trips or heavy data users.
Try a TouriESIM travel eSIM on iPhones that support eSIM
While the Hong Kong iPhone doesn't support eSIM, if you use an international iPhone that does, take advantage of a TouriESIM travel eSIM – a quick, convenient and effective way to stay connected.
- Easy online purchase: buy your eSIM online anytime, before or after departure, with no shops to find and no queues.
- QR code by email: once you've chosen a suitable plan and paid, you'll receive an email with a QR code and installation instructions. Just scan the QR code to install the eSIM on your device (see our eSIM installation guide).
- Online as soon as you land: you can install the eSIM before your flight; when you land, simply turn on the eSIM line and data roaming to find your way, contact family or book a ride. The plan's validity usually starts when the eSIM connects to a network (depending on the plan).
- Flexible plans: TouriESIM offers travel eSIMs for many countries and regions, including single-country, regional and Global plans, with a variety of data allowances and validity periods to suit every traveler.
- Keep your main SIM: your physical SIM stays active for important calls and texts, while the eSIM provides mobile data for your trip.
In short, the Hong Kong iPhone doesn't support eSIM because its hardware is designed only for two physical SIMs. This is inconvenient for anyone who wants to use a travel eSIM – an increasingly popular choice. If you use a Hong Kong iPhone, plan an alternative. And if you have an international iPhone, don't miss the chance to try a TouriESIM travel eSIM – fast, convenient and cost-effective.
