Fri 14 May

The Best Mobile Phone Sim Only Deals of 2021 and how to save money on your phone bill

Fri 14 May

The Best Mobile Phone Sim Only Deals of 2021 and how to save money on your phone bill

The world of buying a new phone, upgrading or getting a fresh sim-only deal is full of people claiming to be the best, hidden costs and even poor service. With the cost of the average phone contract increasing dramatically in recent years, we looked at how you can save money on your mobile phone and mobile contract, both short and long term by switching to sim only deals.

Sim Only plans are great for anyone who has finished their contract, is currently on pay-as-you-go or owns their phone outright and is looking to cut their phone bill. They have no strings attached, many can be cancelled at any time and offer highly competitive bundles at the best prices.

Here’s a breakdown of how Sim Only deals can save you money vs Regular Contracts

Let’s take the iPhone 12 (64gb) as an example, one of the top selling phones of 2021. We've compared 2 deals, both containing unlimited minutes, texts and generous data allowences.

EE Phone Contract – Minimum 24 Month Term

10gb Data, Unlimited Minutes and texts

Monthly Cost £57 – Upfront Cost £50

Total Cost after 2 years = £1418

Buying the iPhone 12 and VOXI Sim Only

Apple iPhone 12, direct from Apple - £33.29 per month

VOXI Sim Only – 12gb Data, Unlimited Minutes and texts, plus Unlimited Social Media Data for just £10 per month

Total cost after 2 years - £1039

That’s a massive total saving of £379

Prices correct as of May 2021

They’re not only great for people buying a brand-new phone. When most contract periods finish you’re either sold into an upgrade (when you probably don't need one) or your contract continues to roll, meaning you’re likely to be overpaying for your device, making sim only deals a great way to save money.

Why Sim-Only?

  • Complete freedom of your package, cancel any time with no fixed terms
  • On average much cheaper than fixed contracts, helping you save money
  • Easily customise your monthly package to suit you, add data and other add-ons
  • Highly competitive rates 
  • Enjoy all the perks of regular contracts from the network provider
  • Change phone whenever you want

Our Favourite Sim Only Deals

We’ve broken down our top 3 Sim Only plans and providers, these deals are jam-packed with excellent perks and fantastic value for money, making them perfect for the FreeClub community. Whilst these are our favourite deals be sure to browse the provider’s websites to find a deal that suits you and your needs.

1. VOXI - Our Top Rated Sim Only 

Voxi Sim Only

VOXI was introduced in 2017 by Vodafone to bring fantastic Sim Only deals to the UK market. VOXI uses Vodafone signal, meaning you can enjoy their nationwide coverage which covers approximately 97% of the UK population.

Our top pick from VOXI - £15 Per Month – No Contract

  • Massive 20GB Data
  • Unlimited Social Media, meaning Instagram, Whatsapp, Facebook and more don’t use your data allowance
  • Unlimited video streaming, endlessly stream from YouTube, Netflix and other video apps
  • 5G Ready
  • Unlimited Minutes & Texts
  • Endless Flexibility – Cancel anytime
  • Powered by Vodafone’s Award-Winning Network
  • EU Roaming – Use your data in Europe at no extra cost
  • £20 Amazon voucher for you and your friends with every referral 
  • No hidden costs thanks to spend caps, meaning you never go above your usage unless you wish to manually add to your package.

Other packages are also available including the incredibly good value deal of 12GB of data for just £10 per month, which also includes Unlimited Social Media data usage, meaning even if you use your data allowance you’ll still be able to access social media and stay in touch with everyone on Whatsapp not bad at all! But be quick, this fantastic deal is only available until May 27th. For a Sim Only with no cancellation period, this really can’t be beaten, many of the competitors will tie you in for 12 or 24 months for similar deals.

Don’t just take our word for it, VOXI were crowned the USwitch 2020 PAYG Network of the Year Winner. Best of all, you can keep your existing number when you switch to VOXI, by simply sending a text message once you receive your new SIM, it’s really that easy. Click here to find out what all the fuss is about.

2. O2

O2 Sim Only

Again, O2 have amongst the best nationwide coverage, with their signal reaching 99% of the UK population. Whilst O2 have had a focus on contracts over the years, their Sim Only deals are on the up. All O2 customers can also enjoy O2 priority which is one of our favourite ways of saving money and even picking up a few freebies here and there!

Our top pick from O2 - £18 Per Month – 12 Month Contract Pay Monthly Sim

  • 20GB Data
  • Unlimited Calls & Texts
  • 3 Months Disney+ (this will renew at £9.99 per month per month unless cancelled)
  • Upgrade to new deal or phone contract after 3 months
  • EU Roaming
  • Full access to O2 priority

The majority of O2 Sim Only deals do require a  minimum 12 month contract, which for us leaves it behind the offering of VOXI, Sim Only is all about freedom! 

3. giffgaff


GiffGaff uses O2, meaning you can enjoy vast UK coverage. The mobile networks I designed to be flexible and simple to manage or even cancel, with no fixed term contracts. 

Our top pick from giffgaff - £15 Per Month – No Contract

  • 25GB data
  • 4G and 5G ready with compatible mobile phone
  • Unlimited Calls and Texts
  • EU Roaming up to 20GB
  • No Contract – cancel any time

giffgaff also range of new and refurbished phones at competitive prices, with low interest finance options available, helping you save when buying directly with a sim only deal.

So there you have it, our quick and simple guide to Sim Only packages and how you can find one that suits you. For us VOXI clearly came out on top, you have unlimted freedom, very generous data allowences included, but for us what swings it has to be the endless social media and endless video streaming, as these are what really eat away at your data throughout the month. With packages starting at just £10 per month thanks to the special offer right now, be quick as this offer is only available until May 27th. 

Have you got any more tips or advice on saving money on mobile phones, whether it's Sim Only, pay as you go, or pay monthly mobile phone contracts? Get in touch with us on Facebook or via email at 


By Liam - Freebie Hunter and Money Saver

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