Make calls

Accept voice calls and dial out on the go.

Receive notifications

Read updates on your wrist so you never miss a thing.

Reply to messages

Respond to urgent messages while you’re on the run.

Same number

OneNumber is Vodacom’s eSIM service that allows users to connect their eSIM-enabled devices away from their phones. By pairing the eSIM-enabled watch device with a smartphone and signing up for the OneNumber service, you can conveniently make calls, receive notifications,  reply to messages, and link a second device to your cellphone number.
The Vodacom OneNumber eSIM solution simplifies connectivity and communication for users with eSIM technology, ensuring that you stay connected wherever you go.

More on OneNumber



No Connection fee (normally R98)


FREE for the first three months


R25 per month thereafter

How OneNumber works

On-device activation

Please note: The on-device activation process only applies to Apple Watch with cellular functionality.

Pair Devices

Pair your eSIM-enabled watch device and smartphone

Launch webpage

Launch the My Watch App from your phone. Choose “Mobile/Cellular data” option. Choose “Set up Mobile Data” option.

Log in & Sign up

Log in to the Vodacom webpage.

Sign up

Sign up for the OneNumber service.

QR-Code activation

Please note: The QR-code activation process only applies to Samsung Galaxy Watch with eSIM/Lte.


Buy an eSIM-enabled watch.
Add your watch to a new or existing contract.
Download the Samsung Galaxy Watch app from your app store.
Enable WiFi on your watch device.
Find and select ‘Mobile networks’ on the Samsung Galaxy Watch app.


Create customer profile.
Retrieve customer profile.
Activate OneNumber.
Generate QR code.
Link customer profile to generate QR code.
Send service and QR code confirmation email.


Receive QR code email from Vodacom.
Scan QR code with the Samsung Galaxy Watch app.
Check phone for SMS with OTP.
Enter received OTP on Samsung Galaxy Watch.


Start using the OneNumber service.


Bluetooth switched ON


If both your phone and watch are on, both your phone and watch will ring.


Bluetooth switched OFF


If both your phone and watch are on, only your phone will ring.


Need help with Vodacom OneNumber?

Our most frequently asked questions

With Vodacom OneNumber you have the capability to connect your devices to a master number by linking different SIM cards through embedded SIMs or eSIM. eSIM is a new technology being used by device manufacturers on both handsets as well as watches to allow the devices to connect to cellular networks without having to insert a traditional SIM card. The eSIM is a chip that is added to the existing electronic control unit [ECU] of the device, which contains an embedded Identification [eID], similar to existing SIM card integrated circuit card ID [ICCIDs] that identifies each unique eSIM and allows a cellular network to link it to the specific profile of a customer.

Yes, this service is available to all postpaid contract [including business/enterprise] customers. A business/enterprise customer will need to contact their company administrator to get permission to have the service added.

In order to sign up for the serv ice, you will need

compatabile devices (i.e. phone and watch);
VoLTE service needs to be active;
ensure your Twincall service is switched off.

Voice over LTE (VoLTE) enables your phone to receive voice calls and data at the same time, providing you with better quality voice calls as these are delivered over the 4G LTE network, normally reserved for data.

Please visit one of our Vodacom Shops or dial Vodacom Customer Care 082 135, to have VoLTE activated and Twincall deactivated.

You will need to

Download the Samsung Galaxy Watch app from the relevant app store;
Have an active wifi hot spot to enable you to update your watch firmware;
Have your Samsung Galaxy Watch with eSIM/LTE; and
a smartphone with the capacity to download and run the “Samsung Galaxy Watch” app.

You can use any device provided the manufacturer has authorised the use of that watch in South Africa. For example a device bought in North America will not work in South Africa.

You may activate the service any time that is convenient for you. We advise activating the service at the beginning of a new month as the activation fee or service fee are not prorated based on when you activate.

Once you have paired your phone and watch [through the “Samsung Galaxy Watch (Gear S)” app]

You will need to visit one of our Vodacom Shops to have one of our consultants activate the service on your account;
When the service has been activated, you will need to scan the bar code found in an email sent to your preferred email account [using the “Samsung Galaxy Watch (Gear S)” app]
Enter the One Time Pin ( that would have been sent by Vodacom) on the Galaxy watch App
Follow the on-screen prompts to complete the setup process.

Once you have paired your phone and watch through the “Watch” app:

Launch the “My Watch App” & select and “Mobile/Cellular data”;
Select “Set up Mobile Data”; and
Login to Vodacom webpage & sign up to the OneNumber service.

Yes, you are able to sign up for the Vodacom OneNumber service during your initial pairing process.

When you get to the “Mobile Data Setup” stage (during setup), you will need to select “Set Up Mobile Data”
Login to Vodacom webpage & sign up to the OneNumber service.
Follow the on-screen prompts to complete the setup process.

You will continue to receive notification for native apps on the watch, other non watch native app notification will only come through when your phone a connected via bluetooth.

For security reasons (i.e. bank/financial notification), this feature is not enabled on watches.

The deactivation will take place immediately with the removal of the OneNumber service from your device. It may take up to 30 minutes to complete.

Place a call from your watch once you:

Separate your device to a point where bluetooth paring is no possible or
Place your phone on airplane mode which will separate the bluetooth connection between the two devices or
Switch your phone off.

You will be billed up to the point of deactivation.

We would recommend deactivation after the first week of the month so as to ensure that you are not billed for the following month.

Visit your nearest Vodacom Shop or contact 082 135.

You may pair as many devices allowed by the watch manufacturer. However, Vodacom OneNumber may only be attached to one watch.

Billing of the service will continue up to the point of deactivation only.

The service will be removed from your device and will not be deactivated on your account.

Visit your nearest Vodacom Shop or contact 082 135, free from your cellphone.

Chatz Connect