Why Asda Mobile?

No contracts

You’re not tied down with us! All of our SIM deals last for one calendar month.

5G speeds

Lightning fast data speeds are here. Grab a 5G data SIM from £10 a month.

UK-wide coverage

Our network is powered by Vodafone with up to 99% UK population coverage.

pink shard pink gradient shard

Picking the perfect unlimited SIM only deal


£10.00 Unlimited

Speed capped at 2 Mbps

Great for casual users

Using social media

Sending and receiving messages

Browsing the internet


£12.50 Unlimited

Speed capped at 10 Mbps

Great for media consumers

Everything our £20 bundle can do, plus...

Streaming videos

Listening to music, podcasts and radio

Downloading and updating apps


£15.00 Unlimited

No speed cap (up to 150 Mbps)

Great for online gamers & film lovers

Everything our £25 bundle can do, plus...

Streaming live HD video

Playing games online

Downloading large files

Tethering to your phone

How it works

SIM card icon

Order your SIM

We'll dispatch your SIM first class the next working day

Checklist icon

Activate it online

You can register your online account whilst your SIM arrives

Transfer number icon

Transfer your number

Login to your online account and follow the step by step instructions

Check icon

You're done!

And that's it! You can now enjoy all the benefits of our network

5G SIM only deals

Say hello to superfast data!

We cover 100 UK towns and cities with 5G data, giving you speeds 10 to 100 times faster than 4G. Take advantage of 5G abroad in multiple destinations around the world!

Wi-Fi calling

Take your connection to the next level.

Send texts and make calls in even more locations than before - all you need is a compatible phone and you’re good to go! Wi-Fi calling is a free feature for all Asda mobile customers.

Frequently asked questions

A SIM only deal is a type of mobile network plan where you only pay for your usage, rather than your usage and your phone. SIM only deals come in all shapes and sizes. At Asda mobile we offer monthly bundles where you’re not tied down by any contracts. All of our SIM only bundles last for one calendar month and come with unlimited minutes and texts.

SIM cards come in three different sizes.

Standard SIM

This is the largest SIM (25mm x 15mm) and is used in phones from the 90s and early 00s.

Micro SIM

This medium-sized SIM (15mm x 12mm) was introduced in 2010 and is used in older smartphones such as the iPhone 4.

Nano SIM

Introduced in late 2012, this is the smallest SIM (12.3mm x 8.8mm) and is usually used in all modern smartphones.

All of these card sizes are provided when you order your SIM from Asda mobile. When you receive your SIM pack simply see which size fits into your phone. Discover more in our essential guide to SIM cards.

To change your SIM card, you will need a SIM tool (small metal pin).

Find the small hole on the side of your device and use this pin to pop your SIM card tray out. Place your SIM card chip-side down onto the tray and slide the tray back into your mobile phone. When you turn your phone on, your phone will recognise that this is a new SIM and prompt you to set it up.

Find out more about inserting and activating your SIM.

You can set your SIM only bundle to automatically renew each month through your online account.

To keep your old number, you need to obtain your PAC code from your old UK network provider. Once you’ve got this, you can simply transfer your old number to your new SIM through My Account.

Yes you can! You can use your SIM only data, bundles, and minutes in 36 European destinations at no extra cost. If you're visiting somewhere outside these destinations, you’ll be charged using our standard mobile data roaming rates.

Find out more about roaming.

All of our SIM only bundles last for one calendar month.

If you happen to run out of data before your month is up, don't worry! You can either buy a data add-on online or use data at our standard pay as you go rate.