Free UK SIM Cards
Save Up to 50% on Your Phone Bill

Get your free GiffGaff or Lebara SIM card delivered to your door. No contract, no hidden fees. Choose from premium O2 or Vodafone networks with 5G coverage and free EU roaming included.

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5G Coverage

Next-gen speeds on premium networks

Free EU Roaming

Use your phone across Europe at no extra cost

No Contract

Complete flexibility, no commitment required

Why Choose a Free UK SIM Card?

Experience the freedom of no-contract mobile plans with premium network coverage and unbeatable value

Stay in Control of Your Spending

With pay-as-you-go SIM cards from GiffGaff and Lebara, you're always in control. No surprise bills, no long-term contracts. Top up when you want, use what you need. Join over 50,000 satisfied customers who've switched to smarter mobile plans and save up to 50% on their monthly phone bill.

Stay Connected on Premium Networks

Choose GiffGaff and you're on the O2 network - one of the UK's most reliable networks with excellent 4G and 5G coverage. Select Lebara and you're on the Vodafone network. Both options give you access to premium UK infrastructure without the premium price tag. Enjoy crystal-clear calls and blazing-fast data speeds wherever you go.

Move Into the Future with 5G

Experience next-generation mobile connectivity with superfast 5G networks available on both GiffGaff and Lebara SIM cards. Stream, game, and browse at incredible speeds. Plus, enjoy inclusive EU roaming when you're on holiday - use your phone across Europe just like you do at home, with no extra charges or surprises.

GiffGaff vs Lebara: Compare the Best UK SIM Only Deals

Both providers offer excellent value and premium network coverage. Choose the one that fits your needs best.

Feature GiffGaff Lebara
Network Coverage
O2 Network
Vodafone
5G Access
EU Roaming
No Contract
Pay As You Go
Free SIM Delivery
Best For Data-heavy users International calls
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Why Choose a Mobile Virtual Network Operator (MVNO)?

We all want to save money, and the great thing about going with a mobile virtual network operator – or MVNO, for short – like GiffGaff or Lebara is that you can do just that. An MVNO is a mobile phone network operator who leases network access from an existing mobile network operator and repackages this access to offer it to customers at a lower price.

MVNOs are smaller companies that purchase network access in bulk from major network operators like O2 and Vodafone, allowing them to offer you the same great coverage and speeds at a fraction of the cost. It's the same premium network infrastructure, just without the premium price tag. You get all the benefits of O2 or Vodafone networks, with savings of up to 50% on your monthly bill.

Frequently Asked Questions About UK SIM Cards

Everything you need to know about getting your free GiffGaff or Lebara SIM card

Yes! Both GiffGaff and Lebara offer completely free SIM cards with free delivery to your door. You only pay for the credit or bundles you choose to use. There are no hidden fees, no activation charges, and no contract obligations.
GiffGaff uses the O2 network, which is one of the UK's most reliable mobile networks with excellent coverage across the country. Lebara operates on the Vodafone network, another premium UK network with extensive coverage. Both networks offer 4G and 5G connectivity where available.
Yes! As long as your phone is unlocked, you can use it with either GiffGaff or Lebara SIM cards. Most modern phones bought directly from manufacturers or certain retailers are already unlocked. If your phone is locked to a specific network, you can usually request an unlock from your current provider for free.
Yes! Both GiffGaff and Lebara include free EU roaming in their plans. This means you can use your phone in EU countries just like you do in the UK, with no extra charges. Your calls, texts, and data allowances work across the EU at no additional cost - perfect for holidays and business trips.
Pay-as-you-go (PAYG) SIM cards give you complete control over your mobile spending. You add credit to your account when you want it, and only pay for what you use. There are no monthly contracts or commitments. Both GiffGaff and Lebara offer flexible bundles that you can purchase monthly, or you can simply top up and pay for individual calls, texts, and data as you need them.
Absolutely! Both GiffGaff and Lebara allow you to keep your existing UK mobile number through a simple PAC code transfer process. You can request a PAC code from your current provider by texting 'PAC' to 65075 for free. Once you have your new SIM card, you can arrange the number transfer, which typically completes within one working day.
Yes! Both GiffGaff and Lebara offer 5G access on their networks at no extra cost, provided you have a 5G-capable phone and are in an area with 5G coverage. You'll enjoy superfast download speeds, smoother streaming, and better performance in busy areas with the latest 5G technology on O2 and Vodafone's premium networks.
Delivery of your free SIM card typically takes 3-5 working days to anywhere in the UK. Both providers offer free standard delivery. Once you receive your SIM card, activation is quick and easy - you can usually be up and running within minutes of inserting the SIM into your phone.

Ready to Save on Your Mobile Bill?

Join thousands of satisfied customers who've switched to smarter mobile plans. Get your free SIM card today and start saving up to 50% on your phone bill with no contract, no commitment.

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Free delivery • No contract • Keep your number • 5G included • EU roaming included