What is an eSIM?

eSIM is a physical yet digital SIM. It is embedded into certain mobile phones, tablets and smart watches as a small electronic chip. A QR provided by us enables you to activate the eSIM in a few easy steps, before connecting to 1O1O’s network.
You can swap the SIM card via settings, instead of inserting a new physical SIM card after removing the old one.
Existing customers using a physical SIM can change to an eSIM at one of our outlets.

Why an eSIM?

You can manage multiple eSIMs easily via “Settings”, which means you can separate SIM card usage – eg private or business.
You can keep a roaming SIM standing by, thereby removing the need to purchase a new one each time.
Unlike with regular SIM cards, no specific slot is required and there’s no way you can lose a card.


How do I activate?

Visit any 1O1O center to subscribe to a new number, port-in or replace an existing postpaid number on an eSIM. Scan the QR code following the device activation process. You can start enjoying service after the eSIM is activated.

eSIM Supporting models*

iPhone XS
iPhone SE (2nd generation)
iPhone 12 mini (HK version)
iPhone 13 mini (HK version)

Android mobile:
Samsung Z Flip
Huawei P40 Pro
Huawei P40
Huawei Mate 40 Pro 5G


iPad Pro 12.9-inch (3rd generation or later model)
iPad Pro 11-inch (1st generation or later model)
iPad Air (3rd generation or later model)
iPad (7th generation or later model)
iPad mini (5th generation or later model)

Android Wearable Device:
Galaxy Watch (LTE)
Galaxy Watch Active2 (LTE)
Huawei Watch 2(eSim)
Samsung Galaxy Watch3 45mm (LTE)
Huawei Watch 3 Pro
Huawei Watch 3
Samsung Galaxy Watch4 Classic 46mm (LTE)
Samsung Galaxy Watch4 44mm (LTE)


Apple Watch:
Apple Watch (GPS + Cellular) (Series 3 or later model)
Apple Watch SE

Windows Device:
Microsoft Surface Pro X
Microsoft Surface Go 2 LTE 


* As of Jan 2022 in Hong Kong


Samsung Galaxy Z Flip eSIM installation and activation flow by QR code

Tap “Settings”

Tap “Connections”

Tap “SIM card manager”

Tap “Add mobile plan”

Tap “Add using QR code” / ”Add using activation code”

Scan the QR code from eSIM Voucher to register

Tap “Add” for new mobile plan

“Adding plan…” is shown

Tap “OK” for activate new mobile plan

After activation, you will see the new eSIM loaded and used


Microsoft Surface Pro X eSIM installation and activation flow by QR code

Click the Internet access icon and then right click the mobile data

Select “Go to Setting”

Select eSIM for mobile data and then click “Manage eSIM profiles”

Click “Add a new profile”

1. Select “Let me enter an activation code that I have from my mobile operator” and then click Next
2. Click “Next”

Scan the QR code or enter the activation code manually

Ensure the eSIM profile and then click “Yes”

Wait the eSIM installation completed

Close the tab

Check and click “Use” enable the installed eSIM profile, eSIM installation is finish


iPhone SE (2nd generation) eSIM installation and activation flow by QR code

Select “Setting”

Select “Mobile Data”

Select “Add Data Plan”

Aim camera at network provider QR code

Select “Add Data Plan”

Change Label for Primary or Secondary number
(if need)

Choose which number for your Default Line

Choose which number associated with your Apple ID services

Choose which number for your default Mobile Data and enable fallback
(if need)

Your Data Plan are ready to use




What is an eSIM?

It is a virtual SIM that allows you to activate a service provider’s mobile plan without using a physical SIM card.


How many mobile phones can work with one eSim number?

One eSIM number can work with only one eSIM device.


If I have two mobile phones, can I use them with the same eSIM?

No. eSIM for Android smart devices will only work with one smartphone.


Is there a charge for changing the eSIM for the second or multiple times?

Replacement arrangements are the same as if using a physical SIM. For more information, please call our customer service hotline on 2888 1010.


How do I choose the number for data?

Make sure you are using an eSIM-enabled Samsung device
Go to “Settings”
Choose “Connections”
Choose “SIM card manager”
Choose “Mobile Data” and select the plan you want to use for data


I have an eSIM-compatible device but it is not on your list of compatible devices. Can I still use eSIM service?

Your phone may not be compatible with our particular eSIM. For more information, please call our customer service hotline on 2512 3123.


Can I reuse the eSIM QR code on the same or other devices?

No. Once an eSIM voucher’s QR code is downloaded and installed, it will be invalidated immediately, regardless of device concerned.


I am an eSIM user, why can't I use "King King"?

King King works only when occupying a mobile device’s primary SIM slot and does not be compatible to the secondary SIM slot. Please note King King does not support using eSIM, which is defined as a mobile device’s secondary SIM.

Terms & Conditions apply.