FREE O2 Big Bundle Pay As You Go Sim Cards with DOUBLE DATA offer

1stMobile.UKSKU: 1M.S-5010

Choose your tariff (top up not included): O2 £10 Big Bundle (7GB) + DOUBLE DATA for 3 months


Order your free sim card at

MAXIMUM 1 FREE SIM per person/household within 6 months


Get 2x data for 3 consecutive months - offer ends 22 June 2022 - See below

NEW Pay As You Go Tariffs from just £5 a month. Your top up lasts for 30 days and O2 give you a choice of 4 tariffs.

Tariffs now include UNLIMITED calls and texts to other UK phones and more data than ever before


  • 14GB Data promo 

  • 14GB data for 3 months, then 7GB
  • UNLIMITED UK Calls & Texts
  • UNUSED data rollover


  • 30GB Data promo

  • 30GB data for 3 months, then 15GB
  • UNLIMITED UK Calls & Texts
  • UNUSED data rollover


  • 60GB Data promo

  • 60GB data for 3 months, then 30GB
  • UNLIMITED UK Calls & Texts
  • UNUSED data rollover


  • 200GB Data promo

  • 200GB Data for 3 months, then 100GB
  • UNLIMITED UK Calls & Texts
  • FREE 500 INTERNATIONAL minutes to 29 countries

Double Data promotion details:

For 3 consecutive months until 22 June 2022 you’ll get DOUBLE DATA whenever you top up your Big Bundle sim.

  • £10 Big Bundle gets 14GB (normally 7GB)
  • £15 Big Bundle gets 30GB (normally 15GB)
  • £20 Big Bundle gets 60GB (normally 30GB)
  • £30 Big Bundle gets 200GB (normally 100GB)

Existing Big Bundle customers can opt in by texting DOUBLE to 2424 within the promotion period.

In addition, opt in to O2 Rewards and get DOUBLE REWARDS for the promotion period:

  • 10% O2 Rewards for new customers who signed up less than 6 months ago
  • 20% O2 Rewards for existing customers who signed up over 6 months ago

You need to opt in to O2 Rewards by texting REWARDS to 50202 or by calling 313 from their O2 mobile before 22 June 2022.

Why not choose your own number? Click the yellow banner below to choose from a range of thousands of numbers, now with hundreds of prices reduced

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  • UNLIMITED UK Calls & Texts

Perfect for basic phones or for those who don't need mobile data. For £5 a month you'll get UNLIMITED calls and texts, but there is no data allowance.

LAST FEW REMAINING - O2 no longer issue sims on this £5 tariff so when they're gone they're gone!

Once you have joined this tariff you will be able to remain on it indefinitely if you wish to do so, but no further sims will be available once our current stock has gone.

Minimum top up is £10, which lasts for 60 days. You can access data at the price of £1 per day per 50MB. This will be automatically taken from the available credit on your sim card, so we recommend that you turn off Mobile Data if you're using a smartphone. You will be able to access your own home or work WiFi as well as free O2 WiFi from hotspots around the UK.


  • UNLIMITED calls and texts to any UK network.
  • FREE roaming in the EU - note that this may change after Brexit. Check with O2 if this is important to you. 
  • O2 REWARDS (see below)
  • O2 PRIORITY MOMENTS - Free gifs and offers via app
  • FREE O2 WiFi hotspots at thousands of UK locations
  • Unused data rollover to the following month (^ £5 Big Bundle sims do not include any data)
  • All sims are supplied in new and sealed official O2 retail packs
  • For the purposes of top up, a "month" means 30 days.

These new tariffs are available now. Packs may show the older tariffs but you will be automatically transferred to the new improved tariff.


O2 are one of the largest and most popular UK networks, and for good reason.

UK based customer service, together with free extras including O2 Rewards, which gives you up to 10% of your top-up back every 3 months.

Example: The £10 Big Bundle 30-day pack offers a generous allowance of 7GB data, with unlimited calls and texts to any UK network for just £10 monthly top up, with other options also available including a £30 package that gives you a massive 100GB of data

Pay As You Go means you're in control. There's no contract to worry about and these 4G sims can be used in any mobile phone - even 2G and 3G, with O2 promising a free upgrade to 5G when available in your area.

Your phone needs to be unlocked or on the O2 network, and these sims should work on networks carried by O2 such as GiffGaff, Tesco Mobile and Sky Mobile. 


All sim cards are triple cut to fit ANY mobile phone - sim size Standard (Mini), Micro or Nano

Don't pay up to £9.99 for these sims elsewhere - our sims are now available completely free to UK customers. We even pay the postage!

Do please note that all sim cards are issued strictly for personal use only and are not for resale. Sim cards must be used as the network intended and are subject to the network's terms and conditions (details on pack).

While we take every effort to ensure accuracy please be aware that all networks are constantly striving to keep their tariffs competitive. Therefore tariffs are subject to change without notice.

Also available with £10 top up pre-installed:


We can only supply 1 free sim per person/household in any 6 month period. To get your free sim, enter the discount code FREESIM at checkout.

Up to 5 additional sims can be ordered at 99p each. 

Note that we can not accept repeat sim card orders, or orders for more than one free sim card in any 6 month period.

If you wish to purchase further sim cards you must continue shopping and complete the order in one transaction before checking out, i.e. select the quantity required and "Add to cart". Do not purchase in separate transactions.

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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information. No payment details are taken if you are ordering a free sim card.

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