Can a dual sim iphone support E Sin?

Hi Poh444,

Please see the following guidance for using a Dual SIM with an eSIM:

"How can you use Dual SIM?

• Use one number for business and another number for personal calls.
• Add a local data plan when you travel outside of the country or region.
• Have separate voice and data plans.

Both your phone numbers can make and receive voice and FaceTime calls and send and receive messages using iMessage, SMS, and MMS.2 Your iPhone can use one cellular data network at a time.

If you want to use 5G with Dual SIM on iPhone 12, iPhone 12 mini, iPhone 12 Pro, or iPhone 12 Pro Max, make sure that you have iOS 14.5 or later.

What you need

• An iPhone XS, iPhone XS Max, iPhone XR, or later with iOS 12.1 or later
• A wireless carrier that supports eSIM

To use two different carriers, your iPhone must be unlocked. Otherwise, both plans must be from the same carrier. If a CDMA carrier provides your first SIM, your second SIM won't support CDMA. Contact your carrier for more information. 

If you have an enterprise or corporate cellular service plan, check with your company administrator to see if they support this feature.

• Set up another cellular plan on your iPhone
• Use two phone numbers
• Learn about Dual SIM status icons
• Change your cellular data number
• Manage cellular settings
• Erase your eSIM

Set up another cellular plan on your iPhone

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. iPhone models without a physical SIM tray support two active eSIMs.

Learn how to activate a cellular plan on an eSIM.

"

Using Dual SIM with an eSIM - Apple Support

Cheers.

If you have a iphone sold in China with 2 physical SIM cards, it does not have Esim.