The eSIM (Embedded Subscriber Identity Module) is type of programmable SIM card that is installed straightforwardly into a gadget.
The eSIM supports the entire ordinary network like 4G/5G, similar as the customary physical SIM.
Embedded SIM discovers its applications in associated vehicle, wearables, tablet, cell phones, laptop M2M, and numerous others.
These kinds of SIM cards are inbuilt into devices and can't be eliminated.
It depends on secure wireless remote SIM provisioning, which permits supporters of register remotely with network suppliers without a current SIM card.
The eSIM helps make these associated devices work and supports new kinds of devices with less harm.
Wearables are a classification that derives huge advantages from eSIMs, as it makes up for occupying additional space and harming the wearable's battery size by joining physical simulations that are more imperative to the device.
Vehicle manufacturers are utilizing eSIM permit clients to rapidly associate their vehicles to cell phones.
Laptop exploits the expansion of eSIM while offering brands and affiliates the chance to up-sell or cross-cell through adaptable information packages.

For most trips to Vietnam, 3GB or 4GB of data will be enough to cover your common internet usage, including searching google maps, and browsing websites.

But if you have a high demand for internet, including watching Netflix, Youtube, or calling via Facetime, or if you are traveling in Vietnam for almost a month, a higher data volume is recommended. 

In addition, in order to save your data, you may opt to use free WI-FI as much as possible.

Yes, buying an iPhone on aninstallment plan or monthly contractfrom a carrier like T-Mobile, AT&T, or Verizon can result in a network-locked device, as carriers often lock phones until they are fully paid off to prevent fraud and promote customer loyalty.To check if your iPhone is locked, go to Settings > General > About and look for Carrier Lock; if it says "SIM locked," you'll need to request an unlock from your carrier.

Your plan starts when you activate your eSIM, not from the time you scan its QR code and add it to your phone.

Yes, you will keep it and all your conversations and contacts. You can use it just like normal.

Yes, you are required to do so to get the best coverage. This will not incur any additional charges, as long as you have already set up the Vietnam eSIM.

If your data has been used up or your eSim validity comes to an end, your eSIM card will no longer work and you will not be able to connect to the internet. If you want more data, buying a new plan is the best choice.

As you need Wi-FI to set up your eSIM, we recommend that you install your eSIM before departure for Vietnam. And then, activate your eSIM when you land in Vietnam.

Here's how to check mobile data usage for your ios/android phone:

+ For IOS : go to setting>> cellular/ mobile data and check data usage in "current period roaming "
+ For Android: go to Settings >> Connections and check data usage in "Data usage"

To delete the eSIM, you go to your phone settings, and then your eSIm, and select Remove the data plan. After confirming, your eSIM will be removed.