The Apple Watch is meant to be used along with an iPhone. If your relative already use an iPhone in Vietnam the Watch should work just fine right out of the box.
The countries that offer eSIM support include Austria, Canada, Croatia, the Czech Republic, Germany, Hungary, India, Spain, the UK, and the U.S. Smaller carriers like Sprint and others in the US don't offer eSIM support yet. What is this
All iPhone models that support eSIM can have multiple eSIMs and use Dual SIM with two active SIMs at the same time. You can use Dual SIM by using a physical SIM and an eSIM. iPhone 13 models and later also support two active eSIMs.
Android (Galaxy Z Fold 4, Android 13): Open the Settings app and hit Connections. Scroll down a bit until you find SIM manager. Tap it, and you'll find a section called eSIMs. Hit Add eSIM and your device will automatically search for any eSIMs from your carrier.
They have been optimized for use in the country of purchase, and not all models work in all countries or regions. There is no single model that supports cellular service worldwide.
With watchOS 9.1 and later, international roaming is available on cellular models of Apple Watch Series 5 and later, Apple Watch SE and later, and Apple Watch Ultra. To get international roaming on your Apple Watch, contact your iPhone carrier to add your watch to your iPhone cellular roaming plan.
While you're abroad, you can use a data-only eSIM as your secondary line and have two active eSIM plans on supported iPhone models. The capabilities on your primary line will continue to work when you add a data-only eSIM and use it for cellular data.
With eSIM cards, it's easier than ever to continue using your own device while out of the country. If your device has an eSIM card, all you have to do is buy a data plan in the country where you're traveling. You can then use a QR code to activate that plan via the eSIM card on your cellular device.
With eSIM, you can quickly switch from your work SIM to your social SIM on the same phone. Another benefit is that you can switch networks much easier.
Set up Dual SIM
To add a line, see Set up cellular service on iPhone. Turn on two lines—tap a line, then tap Turn On this Line. You can also change settings such as Cellular Plan Label, Wi-Fi Calling (if available from your carrier), Calls on Other Devices, or SIM PIN.
What is eSIM on iPhone An eSIM is an industry-standard digital SIM that allows you to activate a cellular plan from your carrier without having to use a physical SIM. You can install eight or more eSIMs on an iPhone and use two phone numbers at the same time.
Android: You can set up your eSIM at Settings > Network & internet > Add. Follow the onscreen instructions and choose Use 2 Numbers when prompted. This may, of course, differ depending on which Android version and phone you own.
There is NO carrier lock. Any carrier in those countries who support Apple Watch can be used on a watch purchased in the US. Then there's the rest of the world.
Services. However if you only have wi-fi. Available you will still be able to use some apps.
Shop roaming plans with eSIM
Before you go: If you have an iPad with an eSIM, you can browse cellular data plans from select carriers in more than 90 countries, regions, and territories. After arrival: Go to Settings > Cellular Data and buy a roaming plan that fits your needs.
If your device has an eSIM card, all you have to do is buy a data plan in the country where you're traveling. You can then use a QR code to activate that plan via the eSIM card on your cellular device. Just like that, you're able to use your own phone like anyone else in a foreign country.
How to use iPhone when traveling internationallyUse Airplane Mode and Wi-Fi simultaneously.Use Wi-Fi-based services and apps for international travel.Turn off Data Roaming or buy a roaming plan.Benefits of using eSIM on iPhone.Make sure your iPhone is unlocked.Reset your data usage statistics.
International SIM cards work in iPhones exactly as a traditional SIM card, but with an international SIM, you can connect to the internet abroad and, in some cases, make and receive calls. You can buy an international SIM card in online stores or when you land at your destination.
You can also convert your current physical SIM card to an eSIM. If you don't have access to your current iPhone, contact your network provider to transfer your eSIM. While you're setting up your iPhone, if you're asked to transfer your SIM, follow the onscreen instructions to transfer your physical SIM or eSIM.
Yes, you can still use your SIM card after installing the eSIM, in fact you can even use both cards simultaneously, your primary card for calls and message, and the eSIM for Internet.
Yes, you can have two numbers on one SIM card and one cellular device. Some devices, however, do not support two numbers on one SIM because they lack the capability. So, instead of getting a compatible handset, you can contact Community Phone's customer service to link two numbers together on one phone/SIM.
Now we'll show you how to use dual SIM. Your signal strength will be displayed in the upper right corner of your screen. The top bars represent your cellular data line and the bottom represents your
You can activate an unlocked iPhone 14 model that you purchased in the United States with over 400 carriers in 100 markets all over the world that support eSIM on iPhone. Contact your carrier to confirm that they support eSIM on your cellular plan. Also, check iPhone cellular band support for country compatibility.
How to Activate/Setup eSIM on Android and iOSFor Android. Open Settings, and tap on Connections. Now open Sim Card Manager and tap on Add Mobile Plan. After this select, the Add Using QR Code option.For iOS. Open Settings and tap on Mobile Data. Select Add Data Plan. Now scan the QR code you got on your mail.
An eSIM is a digital SIM that allows you to use a cellular plan from your carrier without having to use a physical nano-SIM.