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O2 SIM Only Deals

Our O2 SIM Only Deals start from just £10.00 per month. Save your SIM Only data when you're out and about, with the free O2 Wifi. O2 now have around 8000 wi-fi hotspots, so no need to worry about using all your data in one go. You can also call and text over wifi, when you don't have signal. With O2's free TU Go app.

Showing 1 to 12 of 19 mobile phone deals

Multi SIM
Multi SIM image
12 months contract
Unlimited data
Unlimited minutes
Unlimited texts
£35.00 per month
£420.00 total cost
order from: See this deal

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O2 SIM Only Plan

  • Keep your number – even if you're joining from another network
  • Download the Priority app for exclusive offers
  • Daily offers with priority
  • Free O2 Wifi
Multi SIM
Multi SIM image
18 months contract
Unlimited data
Unlimited minutes
Unlimited texts
£33.00 per month
£594.00 total cost
order from: See this deal

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O2 SIM Only Plan

  • Keep your number – even if you're joining from another network
  • Download the Priority app for exclusive offers
  • Daily offers with priority
  • Free O2 Wifi
Multi SIM
Multi SIM image
12 months contract
2Gb data
Unlimited minutes
Unlimited texts
£12.00 per month
£144.00 total cost
order from: See this deal

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O2 SIM Only Plan

  • Keep your number – even if you're joining from another network
  • Download the Priority app for exclusive offers
  • Daily offers with priority
  • Free O2 Wifi
Multi SIM
Multi SIM image
18 months contract
5Gb data
Unlimited minutes
Unlimited texts
£10.00 per month
£180.00 total cost
order from: See this deal

Show more

O2 SIM Only Plan

  • Keep your number – even if you're joining from another network
  • Download the Priority app for exclusive offers
  • Daily offers with priority
  • Free O2 Wifi
Multi SIM
Multi SIM image
12 months contract
5Gb data
Unlimited minutes
Unlimited texts
£15.00 per month
£180.00 total cost
order from: See this deal

Show more

O2 SIM Only Plan

  • Keep your number – even if you're joining from another network
  • Download the Priority app for exclusive offers
  • Daily offers with priority
  • Free O2 Wifi
Multi SIM
Multi SIM image
18 months contract
20Gb data
Unlimited minutes
Unlimited texts
£15.00 per month
£270.00 total cost
order from: See this deal

Show more

O2 SIM Only Plan

  • Keep your number – even if you're joining from another network
  • Download the Priority app for exclusive offers
  • Daily offers with priority
  • Free O2 Wifi
Multi SIM
Multi SIM image
12 months contract
10Gb data
Unlimited minutes
Unlimited texts
£17.00 per month
£204.00 total cost
order from: See this deal

Show more

O2 SIM Only Plan

  • Keep your number – even if you're joining from another network
  • Download the Priority app for exclusive offers
  • Daily offers with priority
  • Free O2 Wifi
Multi SIM
Multi SIM image
18 months contract
100Gb data
Unlimited minutes
Unlimited texts
£20.00 per month
£360.00 total cost
order from: See this deal

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O2 SIM Only Plan

  • Keep your number – even if you're joining from another network
  • Download the Priority app for exclusive offers
  • Daily offers with priority
  • Free O2 Wifi
Multi SIM
Multi SIM image
18 months contract
10Gb data
Unlimited minutes
Unlimited texts
£12.00 per month
£216.00 total cost
order from: See this deal

Show more

O2 SIM Only Plan

  • Keep your number – even if you're joining from another network
  • Download the Priority app for exclusive offers
  • Daily offers with priority
  • Free O2 Wifi
Multi SIM
Multi SIM image
18 months contract
40Gb data
Unlimited minutes
Unlimited texts
£19.00 per month
£342.00 total cost
order from: See this deal

Show more

O2 SIM Only Plan

  • Keep your number – even if you're joining from another network
  • Download the Priority app for exclusive offers
  • Daily offers with priority
  • Free O2 Wifi
Multi SIM
Multi SIM image
18 months contract
150Gb data
Unlimited minutes
Unlimited texts
£23.00 per month
£414.00 total cost
order from: See this deal

Show more

O2 SIM Only Plan

  • Keep your number – even if you're joining from another network
  • Download the Priority app for exclusive offers
  • Daily offers with priority
  • Free O2 Wifi
Multi SIM
Multi SIM image
12 months contract
150Gb data
Unlimited minutes
Unlimited texts
£25.00 per month
£300.00 total cost
order from: See this deal

Show more

O2 SIM Only Plan

  • Keep your number – even if you're joining from another network
  • Download the Priority app for exclusive offers
  • Daily offers with priority
  • Free O2 Wifi

Guaranteed/Automatic Cashback

Your guaranteed/automatic cashback will be paid by BACS directly into your bank account within a certain number of days after connection. Please check the exact number of days when you purchase your product.

Cashback by Redemption

Cashback by redemption usually means you have to claim the money from the company. They will supply instructions when you purchase your product. You have to be an organised person for this type of offer. But if your are, then there are some GREAT deals to be had.

You usually have to send them a voucher or your mobile phone bill several times over the length of your new contract, to prove your are still connected to the network and paying your bill. An example from MobilePhonesDirect is shown below:

The cashback is claimable by instalments in months 6, 9, 12, 15 and 18 and instructions on how to claim will be provided with your order.

Cashback will become void for customers who disconnect from the network prior to their payment being made.

What are the benefits of an O2 SIM 0nly deal?

O2 are the network of choice for Mobile Virtual Network Operators (MVNO). MVNOs are companies that use another company's network. O2 has MVNO partnerships with giffgaff, Sky Mobile and Lyca Mobile. They also manage a 50:50 joint venture with Tesco for Tesco Mobile. So all of those companies use the O2 network. It's an awful lot cheaper than trying to buld your own.

Is O2 the Best Network?

O2 were awarded Best Network Coverage in 2019 by uSwitch. They run 2G, 3G, 4G and 5G services in the UK, they also we operate O2 Wifi service which has access points all across the country.

5G with O2

O2 5G is live in areas of the following 21 towns and cities: Belfast, Birmingham, Bradford, Bristol, Cardiff, Coventry, Derby, Edinburgh, Glasgow, Leeds, Leicester, Lisburn, Liverpool, London, Manchester, Newcastle, Norwich, Nottingham, Sheffield, Slough and Stoke-on-Trent.

O2’s 5G rollout will continue to reach customers, with a plan to reach a total of 50 locations by summer 2020. they're currently busy planning our 5G rollout in the following: Aberdeen, Birkenhead, Blackpool, Brighton, Bournemouth, Cambridge, Eton, Guildford, Hove, Kingston upon Hull, Luton, Milton Keynes, Newbury, Northampton, Plymouth, Portsmouth, Reading, Southampton, Sunderland, Warrington, Windsor and Wolverhampton.

O2's Get a little extra, on us

To be eligible for an O2 'extra' you must purchase your sim only deal from O2. So, if you choose to purchase an O2 sim only via the simtastic.co.uk website. You must order it from O2 and not e2save or mobiles.co.uk

  • Amazon Prime Video - Watch thousands of movies and TV shows on demand with Amazon Prime Video. Look out greaat Amazon Originals like Tom Clancy's Jack Ryan as well as live Premier League action.
  • Amazon Music - Get unlimited access to over 50 million songs on your favourite devices with Amazon Music Unlimited. You'll be able to play track after track of the latest and greatest song you love.
  • Amazon Audible - Audible is the world's largest collection of audiobooks and podcasts. Perfect for the car, before bed, on the go or at home. Download and listen to the world's best storytelling. Enjoy audiobooks, original series and more on the free app.
  • Cafeyn - O2 has become the first UK mobile operator to sign an agreement with Cafeyn. Get to enjoy a wide and diverse range of digital magazines across all devices with anytime access.
  • Call international numbers from 1p a minute - If you've got family and friends abroad or just make a lot of calls abroad then O2's International Bolt On is ideal. You can make low cost calls to international numbers from the UK for just 1p a minute.
  • MelodyVR - MelodyVR lets you experience sold-out shows, intimate performances and far-flung festivals in incredible virtual reality. Get closer to the music you love, wherever you are, with concerts from Jess Glynne at Marlay Park, Emeli Sandé at Rivoli Ballroom, London or London Symphony Orchestra at the Barbican
  • Find a little bit of Calm in your day - Calm is the #1 app for sleep, meditation and relaxation. Calm includes hundreds of Sleep Stories, music, meditations, nature soundscapes and more, to help lower stress, relax and sleep better.

O2's Get a little extra benefits FAQs

  • What is an extra? - When you take out selected O2 Refresh phone, tablet and sim only contracts, you'll get to handpick an extra, on O2. Whether you're into movies, music, reading, or you want to keep in touch with loved ones overseas, you can find an extra that's perfect for you.
  • Are extras free? - You'll get one extra included on selected tariffs. Your included extra will be free of charge or discounted for an introductory period. At the end of that period, you'll need to pay a monthly subscription fee for your extra, which O2 will add to your monthly bill. You can opt out of the subscription at any time in My O2.
  • How many extras can I have? - You can add as many as you want to your account, but you'll need to pay for any that aren't included with your tariff.
  • What countries are include in the International Bolt On? - O2 have 240 countries that you can call cheaply with this. However, if you are buying an O2 sim deal with this particular extra in mind, then please visit the O2 page that show all the countries and how much the landline, mobile calls and texts are, becasue there ain't that many for 1p.
  • How many extras can I have? - You can add as many as you want to your account, but you'll need to pay for any that aren't included with your tariff.
  • Who can have an extra? - O2 Pay Monthly customers can have an extra. If you take out an O2 Refresh plan, you'll have an extra included on selected tariffs when you shop with us directly. But if you want to add any extras to your monthly bill, you can do this in My O2 whenever you like. You'll just need to have joined or upgraded since 2017.
  • Can I have more than 1 extra? - On selected tariffs you'll get one extra included. But if you've joined or upgraded since 2017, you can add extras to your monthly bill whenever you like, in My O2. These will be fully chargeable subscriptions.
  • How long does an extra last? - Most extras last for three or six months, depending on the tariff you've chosen. Take a look at the table to learn more.
      Three month extra, on us Six month extra, on us
    Pay Monthly phone 5GB - 29GB tariff 30GB+ tariff
    Pay Monthly sim 12GB - 49GB tariff 50GB+ tariff
    Pay Monthly tablet 10GB - 49GB tariff 50GB+ tariff
  • I'm already subscribed to one of O2's extras. Can I still choose it? - No, you can only get an extra if you don't already have an existing subscription with that partner.

O2 Roaming in the EU

Your data, minutes and text allowances will work in the EU just like they do at home. The following countries are included in O2's euro zone:

Austria, Azores, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Canary Islands, Denmark, Estonia, Finland, France, French Guiana, Germany, Gibraltar, Greece, Guadeloupe, Guernsey, Hungary, Iceland, Ireland, Isle of Man, Italy, Jersey, Latvia, Liechtenstein, Lithuania, Luxembourg, Madeira, Malta, Martinique, Mayotte, Monaco, Netherlands, Norway, Poland, Portugal, Réunion Island, Romania, San Marino, Saint Martin (French), Saint Barthélemy, Slovakia, Slovenia, Spain, Sweden, Switzerland and Vatican City (Italy). * Not including Northern Cyprus

Roaming outside the EU

Going outside of O2's EU Zones? O2 Travel Inclusive Zone Bolt On is now included with selected O2 Refresh and sim only tariffs. If you buy a 10GB 12 month sim only tariff, you'll be eligible for the O2 Travel Inclusive Zone. You get a daily allowance of 120 texts, 120 minutes and data roaming in 27 additional destinations, which are:

Argentina,Honduras, Australia, Madagascar, Botswana, Mexico, Canada, Myanmar, Chile, New Zealand, Colombia, Nicaragua, Costa Rica, Panama, Ecuador, Paraguay, El Salvador, Peru, Greenland, Rwanda, Guatemala, United States, Guinea, Uruguay, Guyana, Venezuela, Yemen.

My O2

With the My O2 app, you can keep tabs on your account from your mobile. And it's free to download for iPhone and Android. If you're on Pay Monthly, you'll be able to check how much data you've used, see your fully itemised bill and change your tariff.

O2 Priority

Priority is O2's way of saying thank you. It's exclusive to O2 customers and brings you great offers from high street brands, tickets and experiences, as well as access to the best in entertainment.

What type of contract SIM only deals do O2 have?

O2 currently offer 30 day, 12 and 18 month contract SIM only plans:

  • SIM Only Plan - All O2 SIM Only plans come with Daily offers from Priority and Free O2 Wifi.
  • SIM Only Plan between 12GB - 49GB of data - Any 'extras' you choose are free for 3 months.
  • SIM Only Plan between 50GB+of data - Any 'extras' you choose are free for 6 months.

More Generic SIM Only FAQS

For more generic SIM only FAQs, such as, can I keep my number? Please visit our SIM only faqs

Which SIM card does my phone use

  1. Choose the manufacturer of your phone
  2. Choose your mobile phone

Mobile phone outline
Standard Sim Card
Nano Sim Card