OneNumber Connectivity Plans

What is OneNumber?

OneNumber Connectivity Plans let you share your Vodafone airtime and data allowances across your smartwatch, eSIM-enabled tablet or Alexa device - no WiFi or phone necessary.

Plans are either £7.50 or £10 a month, and if you've got a smartwatch and tablet to connect, you can save £3.50 a month with our OneNumber bundle

Simply choose from our range of smartwatches and tablets, then add your OneNumber Connectivity Plan to go alongside it.

*Connectivity monthly price increases each April by the Consumer Price Index rate of inflation published in January of that year + 3.9%.

Why get OneNumber?

Share allowances

Use your phone's allowances on multiple devices from just £7.50 a month.

Flexibility of location

Left your phone at home? No worries - you'll stay connected even without it.

Simple connectivity

You'll always have a secure, private connection using your phone's data allowance.

Improved device battery

Sharing data via OneNumber uses less of your phone's battery life compared to hotspotting.

How do I get OneNumber?

To use a OneNumber Connectivity Plan, you'll need an existing Vodafone Pay monthly Airtime Plan, plus a cellular smartwatch and/or tablet - WiFi-only devices will not work with OneNumber.

Choose your device

Browse our range of smartwatches and tablets to find the right device for you.

Add your plan

Once you've chosen your device, you'll be asked to add your OneNumber Connectivity Plan - choose from a 12-month or 24-month plan.

Activate your plan

Activate OneNumber on your device so you can stay connected wherever you are.

How much does a OneNumber Connectivity Plan cost?

The cost of our OneNumber Connectivity Plans depends on the device you want to connect.

Plans for smartwatches are £7.50 a month, while plans for tablets are £10 a month.

OneNumber Bundle - connect more, save more

Got a smartwatch and a tablet? Connect both and save £3.50 a month on your tablet's OneNumber Connectivity Plan with our OneNumber Bundle.

Once connected, your smartwatch and tablet will both share your phone's allowances and contacts - and you'll save money at the same time.

Activate OneNumber

Got your OneNumber Connectivity Plan? Now all you need to do is activate it on your device. Choose your device below to find out how.

If you've got an Alexa-enabled smart speaker, you can use also OneNumber to make and receive calls on your device - for free.

Frequently asked questions

If you're sharing your data and airtime across your devices, like a tablet or smartwatch, it means that your devices can use the data and minutes from your phone's airtime plan.

The moment you get out of range of your phone, your device automatically switches from Bluetooth to a direct connection to our data network.

This means you can continue to connect to the internet, and receive calls and messages.

The cellular function of your smartwatch won't work abroad, but you can use your smartwatch abroad as normal if it's in range of the paired phone and your phone is set up for international roaming. 

Yes you can - a OneNumber Connectivity Plan lets you share your phone's allowances, number and contacts with your Alexa, so you can make and receive calls on your Alexa - including calls to emergency services and premium rate calls.

Head to our OneNumber Alexa page to find out more.

 OneNumber works with: 


  • Apple Watch Ultra cellular

  • Apple Watch Series 9 cellular

  • Apple Watch Series 8 cellular

  • Apple Watch Series 7 cellular

  • Apple Watch SE cellular  

  • Apple Watch Series 6 cellular  

  • Apple Watch Series 5 cellular  

  • Apple Watch Series 4 cellular  

  • Apple Watch Series 3 cellular


  • Samsung Galaxy Watch5

  • Samsung Galaxy Watch4

  • Samsung Galaxy Watch 3 4G  

  • Samsung Galaxy Watch Active2 4G  

  • Samsung Galaxy Watch 4G


  • Google Pixel Watch


  • OPPO Watch

Other smartwatches

  • Montblanc Summit 2+ (LTE version)  

  • Mobvoi TicWatch Pro 3 LTE

Your watch must be a cellular model (in other words, not a WiFi-only model) to share your plan.

Unfortunately, some tablets, like iPads, are unable to receive calls and texts - but don't worry, you can still use your phone's data allowance on these devices. 

You need to make sure your tablet is also eSIM-enabled.

You can check in your device settings or with your manufacturer.

OneNumber works with any tablet that includes eSIM technology, and this is currently limited to Apple iPads

The following iPad models work with OneNumber: 

  • iPad Pro 11-inch (1st generation or later)

  • iPad Pro 12.9-inch (3rd generation or later)

  • iPad Air (3rd generation or later)

  • iPad (7th generation or later)

  • iPad Air (5th and 6th generation)

 eSIM technology is currently only available on the following Apple iPad models:  

  • iPad Pro 11-inch (1st generation or later)

  • iPad Pro 12.9-inch (3rd generation or later)

  • iPad Air (3rd generation or later)

  • iPad (7th generation or later)

  • iPad Air (5th and 6th generation)

If you're unsure whether your iPad is eSIM-enabled, please check your device settings or contact the manufacturer.

Legal terms

¹Tablet OneNumber Connectivity Plans are currently only available for tablets with eSIM capability.

Vodafone OneNumber Connectivity Plan uses your minutes, texts and data allowance from your Airtime Plan using Vodafone OneNumber.

You must have an Airtime Plan with us in order to purchase a OneNumber Connectivity Plan.

Smartwatch Connectivity plans can be bought for a smartwatch you already own, or for a new smartwatch you purchase through us.

Tablet Connectivity plans can only be bought for a tablet you already own.

See full terms and conditions

¹Blood Oxygen app measurements are not intended for medical use, including self-diagnosis or consultation with a doctor, and are only designed for general fitness and wellness purposes.

²The ECG app is available on Apple Watch Series 4 and later (not including Apple Watch SE) with the latest versions of iOS and watchOS. See for compatibility details. ECG is not intended for use by people under 22 years old. With the ECG app, Apple Watch is capable of generating an ECG similar to a single-lead electrocardiogram.

¹ECG and BP feature only to be used by 22 years+. For accurate BP readings, monthly calibration required by GP or BP monitor and arm cuff. Requires a Galaxy smartphone running Android 7.0 or above.

²Available to all Vodafone Pay Monthly Mobile customers on a Red Plan. You will use the allowance from your current Pay Monthly or SIM only plan to call from your Samsung Watch. For initial set-up, wireless network and pairing with an Android smartphone with OS Android 5.0 or newer and at least 1.5GB RAM required.

³Water resistance rating of 50m under the ISO standard 22810:2010. It is not suitable for diving or high-pressure water activities.