SIM only upgrades

Why upgrade to SIM only deals?

SIM only deals are a great way to save money on your mobile phone bill. More often than not, they work out cheaper than a monthly phone contract as you’re not paying for the handset. Mobile phones have become an essential part of our lives, so it’s worthwhile considering a SIM only deal as a way to save on your monthly outgoings while the cost of living is so high. Great news: we’ve got the best SIM only deals for you to choose from and get great value. So, if you’re looking to upgrade to SIM only, then we’ve got plenty of great deals for you to compare and choose from.

Who is a SIM only upgrade best for?

A SIM only upgrade is ideal if your mobile contract is ending but you’re still happy with your current phone and want to save money. Instead of committing to a new phone contract, with the cost of a new device, a SIM only plan allows you to keep your existing handset and simply switch to a new plan that typically offers better value. This is perfect if your existing phone is still in great condition, and you’re looking to reduce monthly bills. It’s also a smart choice if you want more flexibility, as SIM only deals often come with shorter contract lengths or even rolling monthly options.

SIM only vs phone contract – what’s the difference?

The key difference between a SIM only plan and a phone contract lies in what you're paying for. A phone contract bundles the cost of a new handset with your monthly usage charges, which typically makes it more expensive overall. In contrast, a SIM only deal includes just the minutes, texts and data, but without the phone. So, it’s significantly cheaper. If you already own a phone you're happy with, a SIM only upgrade offers excellent value by cutting out the cost of a new device. So, if you're looking to reduce your monthly spend and keep your current phone, a SIM only upgrade is a flexible, cost-effective choice.

Vodafone SIM only upgrades at Carphone Warehouse

Vodafone SIM only deals offer great value from a trusted network, with flexible plans to suit your budget. At Carphone Warehouse, you’ll find a wide range of Vodafone deals packed with benefits like unlimited texts and minutes and excellent 4G and 5G coverage. Plus, entertainment extras including YouTube Premium, Amazon Prime or Spotify Premium. You can also set data caps to avoid surprise charges, and manage everything easily through the My Vodafone App. Whether you're upgrading or switching from another network, you can keep your number and compare bundles to find the perfect fit.

It’s easy to choose from one of our Vodafone upgrade deals or switch to one of many Vodafone SIM only deals, no matter what network you’re currently with. A Vodafone SIM only upgrade means you can even keep your old number too, so there’s no need to fret about updating everyone. Take a look at our Vodafone upgrade SIM only deals, compare them with some of the other deals we have, and see what you think.

iD Mobile SIM only upgrades

iD SIM only upgrades are cheaper than standard phone contracts as they come without a phone. They also give you loads of flexibility to change all kinds of usage and details whenever you please through the iD Mobile app. You’ll find the best SIM only deals on contracts no matter what you’re looking for. They also offer free roaming in more destinations than any other network. iD’s one of the most trusted networks around (according to Trustpilot) with 2 million subscribers and growing!

Upgrade process – how it works

Upgrading your mobile plan is simple and hassle-free. First, check your upgrade eligibility by logging into your account on your provider’s website or app. This will show if you're due for a new deal. If you're switching networks, request a PAC (to keep your number) or STAC (to get a new number) code by texting ‘PAC’ or ‘STAC’ to 65075. Next, browse and choose a new deal that suits you - whether it’s more data, better coverage or a new phone. Once you've selected your plan, provide your PAC/STAC code during checkout to ensure a smooth switch. Finally, insert your new SIM (if applicable), follow the activation instructions, and you’re all set! Most switches complete within one working day.

SIM only with Unlimited data, minutes & more

Think about how you use your phone — calls, data or both? If you’re big on chatting, unlimited minutes deals are ideal. But if you're all about streaming, social media, or working on the go, a data-heavy or unlimited data SIM is a better fit. VOXI offers standout unlimited data deals, including free use of social and video apps, so your main data allowance lasts longer. Whether you're after value, flexibility or Vodafone SIM only upgrades, we’ve got a wide range of options to suit your lifestyle and budget. Compare now to find your perfect match.

Credit checks, eSIMs & keeping your number

Worried about switching? Don’t be! Most SIM only deals involve a quick credit check, especially if you're opting for a contract. With Carphone Warehouse, you don't even need to undergo a credit check to get a Pay As You Go SIM only deal. Want to keep your number? Just request a PAC code from your current provider (text ‘PAC’ to 65075) and give it to your new network. Your number will transfer, usually within one working day. Prefer a digital setup? Many networks now offer eSIM SIM only plans, letting you activate your SIM instantly without waiting for a physical card. It’s fast, secure and perfect for modern smartphones.