From 1GB to 150GB and even unlimited data, we compare and contrast the best SIM-only plans in the UK right now

The UK’s Top Plans Right Now

Here’s The Best SIM-Only Plans In The UK Right Now 🇬🇧

Whether you need 1GB or 150GB, we’ve compared and contrasted all the latest SIM-only deals to bring you the best value options on the market right now.

Richard Goodwin

You never want to pay for more data than you need. Most poeple don’t use more than 10GB a month, so keep that in mind before you pull the trigger on your next phone plan.

— Richard Goodwin, Tech Editor

Best SIM-Only Plans 🇬🇧

Vodafone 120GB (£7.50)


ID Mobile 40GB (£3.00)


Vodafone 200GB (£8.00)


VOXI 30GB (£10)


VOXI 100GB (£20)


Which Deal is Best For You?

Choosing the right SIM-only plan is always a pain. But with the options outline above, we’ve tried to cover all the bases – from value for money to huge amounts of data allowances for not much money. 

You have mainline network options from Vodafone and cheaper MVNO networks like VOXI and ID Mobile to choose from. All the plans include unlimited text and calls too, so no worries on this count. 

Analysis of The Best SIM-Only Data Plans

Editor’s Pick

Vodafone 120GB (£7.50)

  • This plan offers a substantial 120GB of data at a competitive price point.
  • It’s suitable for heavy data users who stream video and music, play online games, and browse the web extensively.
  • The large data allowance provides ample flexibility for most users without worrying about running out of data.
  • Best for: Heavy data users, streamers, gamers, and those who rely on mobile data as their primary internet connection.

The Best Value Option

ID Mobile 40GB (£3.00)

  • This plan provides 40GB of data at a very affordable price, making it an excellent value for money.
  • It’s ideal for users with moderate data needs, such as regular web browsing, social media usage, and occasional video streaming.
  • The 40GB allowance is sufficient for most daily activities without excessive data consumption.
  • Best for: Budget-conscious users, moderate data users, and those who primarily use Wi-Fi but need a reliable mobile data backup.

More Data Than You’ll Ever Need

Vodafone 200GB (£8.00)

  • With a massive 200GB of data, this plan caters to users with very high data demands.
  • It’s perfect for heavy streamers, gamers, and those who frequently download or upload large files.
  • The 200GB allowance provides an extensive data buffer, ensuring users rarely need to worry about exceeding their limits.
  • Best for: Power users, frequent travelers, households with multiple devices, and those who heavily rely on mobile data.

Excellent Value For Moderate Users

VOXI 30GB (£10)

  • This plan offers 30GB of data, which is suitable for users with moderate to slightly heavy data usage.
  • It caters to individuals who regularly browse the web, use social media, stream music, and watch occasional videos.
  • The 30GB allowance provides a decent balance between data needs and cost.
  • Best for: Average users, social media enthusiasts, and those who want a bit more data than basic plans offer.

A Huge Amount of Data For Not Much Money

VOXI 100GB (£20)

  • With 100GB of data, this plan is designed for users with high data consumption needs.
  • It’s suitable for individuals who frequently stream video content, play online games, and use data-intensive apps.
  • The 100GB allowance offers plenty of data for most users, providing peace of mind and flexibility.
  • Best for: Heavy data users, frequent streamers, and those who want a generous data allowance without opting for the highest-tier plans.

About The Phone Networks We Chose


  • Vodafone is one of the largest mobile network operators in the UK and globally.
  • They offer a wide range of services, including mobile phone plans, home broadband, and business solutions.
  • Vodafone is known for its extensive network coverage, reaching over 99% of the UK population.
  • They offer competitive pricing, a variety of plans, and additional perks like VeryMe Rewards.
  • Vodafone also provides 5G services in many locations across the UK.

ID Mobile:

  • ID Mobile is a mobile virtual network operator (MVNO) that runs on the Three network infrastructure.
  • As an MVNO, ID Mobile does not own its own network infrastructure but instead uses Three’s network to provide services.
  • They are known for offering affordable and flexible plans, particularly for those with low to moderate data needs.
  • ID Mobile provides a simple, no-frills approach to mobile plans, focusing on value for money.
  • Customers can benefit from Three’s network coverage, which reaches over 99% of the UK population.


  • VOXI is a sub-brand of Vodafone, targeting younger consumers and digital-savvy individuals.
  • They offer simple, contract-free plans with unlimited social media usage on select apps.
  • VOXI runs on Vodafone’s network infrastructure, providing the same extensive coverage.
  • Their plans are designed to be flexible and transparent, with no hidden fees or charges.
  • VOXI also offers 5G services in select locations, allowing for faster data speeds and improved connectivity.

Our expert team of researchers recommend this deal for its combination of low monthly cost and massive amounts of data.

SIM-Only Plan FAQs

Commonly Asked Questions

SIM-Only Plan FAQs

Q: What is a SIM-only plan?

A: A SIM-only plan is a type of mobile phone plan that includes a SIM card with an allotment of data, minutes, and texts. Unlike traditional phone contracts, SIM-only plans do not come with a handset, allowing you to use your own device or purchase one separately.

Q: What are the benefits of choosing a SIM-only plan?

A: SIM-only plans offer several benefits, including:

  • Flexibility: Most SIM-only plans are contract-free or have short-term commitments, allowing you to change or cancel your plan easily.
  • Cost-effectiveness: SIM-only plans are often cheaper than traditional phone contracts since you’re not paying for a bundled handset.
  • Freedom of device choice: With a SIM-only plan, you can use your existing device or choose to purchase a new one separately, giving you more control over your phone choice and upgrade cycle.

Q: What should I consider when choosing a SIM-only plan?

A: When selecting a SIM-only plan, consider the following factors:

  • Data allowance: Assess your monthly data needs based on your usage habits, such as browsing, streaming, and social media.
  • Call minutes and texts: Determine how many call minutes and texts you typically use each month.
  • Network coverage: Check the coverage map of the mobile network provider to ensure you’ll have reliable service in your area.
  • Price and contract length: Compare prices and contract durations from different providers to find the best value for your needs.

Q: Can I keep my existing phone number when switching to a SIM-only plan?

A: Yes, you can usually keep your existing phone number when switching to a SIM-only plan. The process is called a PAC (Porting Authorization Code) transfer. Contact your current provider to obtain a PAC code, which you’ll then provide to your new provider to initiate the transfer process.