You must pair your smartwatch with your smartphone and follow the manufacturer's instructions (mobile data must be connected).
You should always update your watch's app to the latest version before you start activation. 

Samsung cellular enabled smartwatches are eligible for OneNumber.

• Galaxy Watch 5 Pro 45MM LTE
• Galaxy Watch 5 44MM LTE
• Galaxy Watch 5 40MM LTE
• Galaxy Watch 4 40MM LTE

 

You must be a Vodafone mobile Bill Pay customer to use OneNumber.

The eligible plans are listed below: 

• Red Lite
• Red Unlimited
• Red Unlimited Max
• Red Unlimited Sim Only
• Red Unlimited Max Sim Only  
  
• RED Business Unlimited Lite
• RED Business Unlimited
• RED Business Unlimited Max
• RED Business Unlimited SIM Only

The Samsung watch can be used with Samsung & Android phones as per below:  

• Samsung & Android device must be running 8.0 (M OS Mobile operating System) or higher Samsung & Android device with RAM 1.5GB above.
• Samsung & Android device with Google Mobile Services (GMS).
• The Smartwatch you want to pair must be a model sold in Europe.

Samsung watch cannot be used with Samsung & Android phones as per below:

• Go edition and phones without Google Play Store.  
• Android devices that do not have Google Mobile Services. Note some Huawei devices do not have access to the GMS. Please refer to the mobile user guides to confirm if GMS is available. 
• The Android device you wish to pair must be a model sold in Europe – ER.
• RAM lower than 1.5GB.
• Any iOS.

You can cancel OneNumber at any time by going to a Vodafone Retail store or online through www.onenumber.vodafone.com/ie.
Your watch will no longer have mobile connectivity at the time the cancellation occurs, and you will receive an SMS indicating that you no longer have Vodafone OneNumber active. You'll pay on your invoice, only the days you had active service that month. Vodafone OneNumber can be active again at any time.