The Future is Here.
Effortless Connectivity with 1O1O eSIM.
Experience the freedom of a virtual SIM card. Activate your plan instantly and manage multiple lines with ease.
Learn How to ActivateWhat 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 code 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.
No way you can lose a card
No specific slot is required and there’s no way you can lose a card.
Manage multiple eSIMs easily
Via “Settings”, you can separate SIM card usage – eg private or business.
Keep a roaming SIM standing by
Removing the need to purchase a new one each time.
Simple Activation in 3 Steps
Activating your new eSIM plan is quick and easy. Follow these simple steps to get started.
1
Visit any 1O1O center
Subscribe to a new number, port-in or replace an existing postpaid number on an eSIM.
2
Scan a QR code
Follow the device activation process.
3
eSIM is activated
You can start enjoying service after the eSIM is activated.
eSIM Supporting models *
*List is updated as of August 2025 - Hong Kong.
iPhone & iPad
Our eSIM service is compatible with a wide range of iPhone and iPad models. Please note that certain Hong Kong versions of older models may have limited compatibility.
-
iPhone:
iPhone XS# - iPhone SE 2nd Generation#
- iPhone SE 3rd Generation or later model#
iPhone 12 mini (HK version)
iPhone 13 mini (HK version)
iPhone 16e -
-
iPad:
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) - #Some handset models only support 4G LTE networks and are not compatible with 5G or 5G SA networks.To use the eSIM service, please visit your nearest 1O1O Center to apply for a 5G NSA eSIM Activation Kit.
Tutorial on eSIM quick transfer feature
Windows Devices
Stay productive with eSIM support for your Windows tablet or laptop:
- Microsoft Surface Pro X
- Microsoft Surface Go 2 LTE
- Microsoft Surface Go 3 Intel® Core i3 128 LTE
- Microsoft Surface Pro 9 5G
Android Phones & Tablets
Our service supports the latest Android devices from top manufacturers. Check the list below for specific models:
- Samsung Z Flip
- Samsung Galaxy Tab S9|Tab S9+|Tab S9 Ultra
- Samsung Galaxy Tab S9 FE+|Tab S9 FE
- Samsung Galaxy Tab S10 Ultra| Tab S10+
- Samsung Galaxy Tab S10 FE+ |Tab S10 FE
- Asus ZenFone 12 Ultra
- Huawei P40#
- Huawei P40 Pro#
- Huawei Mate 40 Pro 5G
- Motorola Razr 5G
- Motorola Edge 40
- Motorola Razr 50 Ultra
- Motorola Razr 50
- HONOR Magic 4 Pro
- HONOR Magic 5 Pro
- HONOR Vs 5G
- HONOR 90 5G
- HONOR Magic V2
- HONOR Magic V2 RSR (PORSCHE DESIGN)
- HONOR Magic 6 Pro
- HONOR 200 Pro
- HONOR 200
- HONOR Magic V3
- HONOR Magic 7 Pro
- HONOR 400 Pro
- HONOR 400
- HONOR Magic V5
- HONOR Magic 8 Pro
- HMD Skyline 5G
- VIVO X100 Pro
- VIVO X90 Pro 5G
- VIVO X200 Pro
- VIVO X200
- VIVO X200 FE
- VIVO X Fold5
- VIVO X300 Pro
- VIVO X300
- Xiaomi 13 Pro
- Xiaomi 13
- Xiaomi 13T Pro
- Xiaomi 13T
- Xiaomi 14
- Xiaomi 14T Pro
- Xiaomi 14T
- Xiaomi 15 Ultra
- Xiaomi 15
- Xiaomi 15T Pro
- Xiaomi 15T
- Redmi Note 13 Pro+ 5G
- Redmi Note 13 Pro 5G
- Redmi Note 14 Pro+ 5G
- Redmi Note 14 Pro 5G
- Redmi Pad 2 Pro 5G
- Nothing Phone (3a) Pro
- Nothing Phone (3)
- OPPO Find N3 Flip
- OPPO Find N3
- OPPO Find N2 Flip 5G
- OPPO Find X8 Pro
- OPPO Reno13 Pro 5G
- OPPO Find N5
- OPPO Reno14 Pro 5G
- OPPO Reno14 F 5G
- OPPO Find X9 Pro
- OnePlus 11 5G
- OnePlus 12 5G
#Some handset models only support 4G LTE networks and are not compatible with 5G or 5G SA networks.To use the eSIM service, please visit your nearest 1O1O Center to apply for a 5G NSA eSIM Activation Kit.
Smartwatches
Stay connected on the go with our eSIM service for your smartwatch. Supported models include:
- Apple Watch:
- Apple Watch (GPS + Cellular) (Series 3 or later model)
- Apple Watch SE (GPS + Cellular) (1st generation or later model)
- Apple Watch Ultra (GPS + Cellular) (1st generation or later model)
-
Compatible 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
- Huawei Watch 4 Pro
- Huawei Watch 4
- Xiaomi Watch 2 Pro
- Samsung Galaxy Watch4 Classic 46mm (LTE)
- Samsung Galaxy Watch4 44mm (LTE)
- Samsung Galaxy Watch5 40mm/44mm (LTE)
- Samsung Galaxy Watch5 Pro 45mm (LTE)
- Samsung Galaxy Watch6 Classic 43mm/47mm (LTE)
- Samsung Galaxy Watch6 40mm/44mm (LTE)
- Samsung Galaxy Watch7 40mm/44mm (LTE)
- Samsung Galaxy Watch Ultra
- Samsung Galaxy Watch8 40mm/44mm (LTE)
- Samsung Galaxy Watch8 Classic 46mm (LTE)
- Samsung Galaxy Watch Ultra (2025)
-
- Other Wearables One Number Service eSIM Subscription Steps for Android Watch
- Demo shows how to activate an eSIM into an Android watch: Galaxy Watch (LTE)
Frequently Asked Questions
It is a virtual SIM that allows you to activate a service provider’s mobile plan without using a physical SIM card.
One eSIM number can work with only one eSIM device.
No. eSIM for Android smart devices will only work with one smartphone.
Replacement arrangements are the same as if using a physical SIM. For more information, please call our customer service hotline on 2888 1010.
For Samsung devices, follow these steps:
- Go to "Settings".
- Select "Connections".
- Select "SIM card manager".
- Choose "Mobile Data" and select the plan you want to use for data.
Your phone may not be compatible with our particular eSIM. For more information, please call our customer service hotline on 2888 1010.
No. Once an eSIM voucher’s QR code is downloaded and installed, it will be invalidated immediately, regardless of device concerned.
eSIM Terms & Conditions
1. eSIM is a digital and embedded SIM offered by CSL Mobile Limited (“CSL” or “we”) that enables activation of a mobile service plan (“Service Plan”) without a physical SIM card.
2. To use the eSIM, you must be a 1O1O, csl or Club Sim monthly service plan customers (“Customers”) and use a device that supports eSIM functionality. Customers subscribed the JustOne Card value-added service are not eligible to this eSIM service.
3. eSIM is available through the following channels:
a. Walk-in to any csl AI Store or 1O1O Center to apply for eSIM. Upon successful application, you will be provided with an eSIM Activation Kit. The eSIM Activation Kit contains a unique QR Code which is only valid for one time scan.
b. Self-initiated request through your eSIM supported iPhone or iPad (“Apple Device”) running iOS/iPadOS 18.6.2 or newer by Apple eSIM Quick Transfer service (“the Service”) enables you to convert a physical SIM card to an eSIM on same Apple Device or transfer an existing physical SIM card or eSIM from one Apple Device to another. For details, please https://1010.com.hk/esim_transfer or https://www.hkcsl.com/en/esim/quick-transfer.
4. Subject to clause 3a, you must have an eSIM-compatible device to activate the eSIM installation through the eSIM Activation Kit. CSL reserves the right to only support a list of designated eSIM-compatible devices, subject to change at any time. For the latest update, please visit https://www.1010.com.hk/esim or https://www.hkcsl.com/en/esim/.
5. For the purpose of clause 3b, you must have compatible Apple Devices as listed below in order to enjoy the Service. CSL reserves the right to revise the below list of compatible Apple Devices at any time without prior notice. For the latest update, please visit please visit https://1010.com.hk/esim_transfer or https://www.hkcsl.com/en/esim/quick-transfer.
iPhone
- iPhone SE (3rd generation or later model)
- iPhone 12 mini or iPhone 13 mini
- iPhone 16e
- iPhone Air
- iPhone 17 Series
iPad
- iPad Pro 12.9-inch (4rd generation or later model)
- iPad Pro 11-inch (2nd generation or later model)
- iPad Air (4th generation or later model)
- iPad (10th generation)
- iPad mini (6th generation or later model)
6. The use of eSIM may require transfer of your data (including personal data), which may include without limitation, your mobile phone number, integrated circuit card identifier/SIM card number (“ICCID”), embedded identity document number (“EID”) to the provider of your eSIM compatible device (including but not limited to Apple). The use and retention of your data by the provider of your eSIM compatible device is subject to third party privacy policies.
7. Customers must ensure that their compatible eSIM devices are connected to a network (either Wi-Fi or mobile data) in order to download and use the eSIM service.
8. We may charge you HK$40 per eSIM replacement as prescribed by us, if it is damaged due to misuse, negligence or willful damage on your part. You must contact us to arrange for your mobile service to be suspended if your eSIM, device or mobile equipment has been lost or stolen.
9. You are responsible for all charges connected with the lost or stolen mobile equipment, equipment and/or eSIM until we disconnect all mobile services to the lost or stolen mobile equipment, equipment and/or eSIM, following your report of the loss or theft in accordance with clause 8, but you are still required to pay all monthly charges.
10. You agree that an acceptable use policy applies to some mobile services and you must use the mobile service in a fair manner. We will consider use of the mobile service as unfair if you or a third party uses the mobile service in any way which:
a. is designed to exploit, or results in the exploitation of, an acceptable usage limit of the relevant mobile service (as determined by us from time to time) or
b. causes or results in loss to us, problems to the network or affects the storage capacity of another customer.
In such an event, we may reduce your usage to a level determined by us and/or charge you in accordance with the prevailing thereafter rate of the relevant mobile service or suspend or terminate the relevant mobile service immediately.
11. eSIM is subject to the Mobile Service Agreement of CSL Mobile Limited, please visit https://www.1010.com.hk/terms_and_conditions or https://www.hkcsl.com/en/mobile-service-agreement-consumer-customers/.
12. CSL may change these Terms & Conditions at any time without notice. All matters and disputes will be subject to CSL’s final determination.
13. If there is any inconsistency between the Chinese and English versions of these terms and conditions, the English version shall prevail.
Other Wearables One Number Service (the Service) Terms & Conditions
• To use the Service you must have an eligible csl / 1O1O mobile service plan (“Service Plan”), a compatible “Device”, and a compatible Android 5.0 or newer mobile phone with 1.5GB RAM or above and iPhone which is iPhone 5 with iOS 9.0 or newer.
• Data usage of the Service will be deducted from the Service Plan of your Service Plan.
• You can make or receive calls from the Device using the mobile number of your Service Plan.
• You can only use the Service with one Device at a time. If you want to connect to another Device, you can connect your Device to the Service via “1O1O” / “csl” app on your mobile phone. Alternatively, you can purchase an additional Service to use with the new Device on your mobile phone.
• You can purchase up to a maximum of one Service under the same mobile number.
• The Service does not support international roaming.
• If you terminate the Service Plan of your mobile phone, you are required to terminate the Service of your Device by calling our customer service.
• The Service is subject to the Mobile Service Agreement of CSL Mobile Limited, please visit www.hkcsl.com/en/mobile-service-agreement-consumer-customers/.
• If there is any inconsistency between the Chinese and English versions of these terms and conditions, the English version shall prevail.