cheap mobile sim only

SIM only deals are an option rapidly increasing in popularity. They allow you to buy an allowance of data, calls and texts all for one simple monthly charge. This allows you to buy a phone separately or use it in an existing device you have. In other words, there are a lot of cheap mobile sim only deals out there fitting a variety of needs and if you already know what you’re looking for, the 3 sim only deals, 3 sim only deals and Cheap Mobile Sim Only list below will let you filter for data, price, network and more.

For thousands of people in the UK, SIM only deals have represented a cheap and more flexible alternative. Not only are there more options when it comes to contract lengths but pricing is also far more flexible with plans starting from less than a fiver a month.

Cheap Mobile Sim Only

But it’s not just the cheap plans that stand out. The likes of Three continually offer massive data plans at affordable price points, Smarty, Voxi and iD Mobile keep things flexible with 1-month rolling plans and EE continues to offer super speedy 4G SIMs.

Three | 12-month contract | All-you-can-eat data | Unlimited calls and texts | £18 per monthNetflix marathons, epic Pokemon Go quests, constant Spotify tunes, this all-you-can-eat data bundle is ideal for the serious mobile user who never needs to worry about poxy thing like data allowances or Wi-Fi. And then you get all of Three’s usual bonuses like Go Roam, Go Binge and its Wuntu app for added perks.


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For those that are new to the world of SIM plans and have no idea where to start, you’re in the right place. Further down the page, you can find our top ten favourite plans, answers to common questions, the benefits of certain networks and more.

So whether you require a SIM for brand new phones or are trying to eke out an extra few months of your beloved old mobile, our guide to the best SIM only deals is your passport to the lowest possible monthly phone bills.

What is a SIM only deal?

SIM plans are pretty easy to understand. In essence, its just a SIM card that goes into your phone. You pay a monthly fee to have it which will end up saving you big over the course of your contract compared to a phone contract.

Who has the best SIM only deals?

  • Three: best for big data and unlimited plans
  • EE: best for fast speeds and overall performance
  • Vodafone: strong balance of affordability and features
  • O2: heavy on the added benefits
  • Smarty Mobile: best value 1-month rolling option
  • Voxi: best for social media users
Sky Mobile SIM only deal is super cheap, but it ends really soon | T3

SIM ONLY DEALS OF THE WEEK: TOP 10

We’ve looked through all of the available retailers and networks to bring you the absolute top 10 options. This includes all of the available options from EE, O2, Three, Vodafone, iD, Smarty and more.

1. Best cheap mobile sim only plan

Lebara SIM only | 1 month contract | 2GB data | 1000 minutes and texts | £5 per month
One of the lesser-known names out there, Lebara thrives best at the cheap, low data end of the scale. This deal scores you 2GB of data and only charges you £5 a month to get, making it one of the cheapest prices around. And, it is a 1-month rolling contract so you can leave at any time. On top of that, Lebara offers 100 mins to 40 international countries with this plan.

Score 2GB of data at a low price with Lebara

2. Best 5GB+ data SIM

iD Mobile | 1 month contract | 10GB data | Unlimited minutes and texts | £8 per month
This offer from the Carphone Warehouse-owned iD Mobile gets you some excellent value right now. You’re only paying £8 a month to score a very healthy 10GB of data. On top of that, iD is throwing in both unlimited calls and texts for the complete overall package, as well as additional perks like Wi-Fi calling and the flexibility to cancel any time.

Check out this excellent value iD SIMO

3. Best 30-day SIM plan

Smarty | 1 month rolling | 30GB data | Unlimited calls and texts | £10 per month
Smarty’s really got this affordability thing down! Go with Smarty and you’ll end up paying just £10 each month for 30GB of data. While that is obviously a great price for that amount of data, the factor that really makes Smarty shine is the 1-month rolling contracts it operates on.
Get this amazing SIMO price from Smarty

4. Best big data SIM (20GB+)

Smarty | 1 month rolling | 50GB data | Unlimited calls and texts | £15 per month
Smarty really is dominating the world of SIM only deals right now. It has a number of top plans but his one really takes the cake. offering 50GB of data at a price of just £15 a month, it is easily the cheapest big data plan around right now. Plus, the 1-month rolling plan will be perfect for many.

Head through to Smarty to get this limited time offer

5. Cheapest SIM only deal for unlimited data

Three | 12-month contract | All-you-can-eat data | Unlimited calls and texts | £18 per month
Netflix marathons, epic Pokemon Go quests, constant Spotify tunes, this all-you-can-eat data bundle is ideal for the serious mobile user who never needs to worry about poxy thing like data allowances or Wi-Fi. And then you get all of Three’s usual bonuses like Go Roam, Go Binge and its Wuntu app for added perks.

View this reduced all-you-can-eat deal at Three

6.  Best value EE SIM

24 months | 80GB data | Unlimited calls and texts | £20
Has EE finally got competitive with its pricing…with this deal, it looks like it has. For the price of £20 a month, you’re getting a massive 80GB of data. While that is already pretty affordable, it gets better considering EE will charge you half the amount for the first three months of your contract.

Get the best value EE SIMO deal out there

7. Best cheap Vodafone SIM

12-month contract | 8GB data| Unlimited texts and calls | £8 per month
This offer from Vodafone is great. For the price of £8 a month, you’re getting 8GB of data. That makes it one of the cheapest plans around on any network, especially for this much data. However, this is a Vodafone basics package so you won’t get Veryme or roaming in other countries.

Click here to get this great value Basics SIM from Vodafone

8. Best O2 SIM only deal + free Disney Plus

O2 | 12-month contract | 100GB data | Unlimited calls and texts | £20 per month + Disney Plus for six months
O2 has really stepped up its game of late and of all of its latest options, this one is the standout. Offering 100GB of data for just £20 a month. Alongside the data package, O2 will also throw in a free six month subscription to Disney Plus.

Check out O2’s big data + Disney Plus subscription deal

9. Best SIM for social media users

Voxi | 12-month contract | 15GB data | Unlimited calls and texts | £10 per month + free social media usage
Find yourself powering through data because of social media apps? Voxi is likely going to be the best network for you. With this plan, you get 15GB of data while only paying £10 a month to get it. On top of that, Voxi doesn’t use up any data when using social media apps. That means you can use Facebook, Whatsapp, Twitter and more without fear of running out of data.
Check out Voxi’s cheap SIM deal with free social media

10. Best data only SIM deal

Three | 12-month contract | 10GB data | £14 per month
If you use your tablet as a kind of portable TV for catching up with Netflix, iPlayer and Amazon Video while out and about, then this Three data only deal just got even better. You now get 10GB for £14 a month (sorry, it has just gone up in price), which is cheaper than other major networks. This is the best value SIMO we can find for using data on an iPad or one of the other best tablets.

What kind of smartphone do you need?

Before choosing any smartphone you should get your priorities straight first. A smartphone is basically a computer you carry around in your pocket that allows you to perform various tasks. This can be anything from ensuring that you’re able to remain connected with the outside world through to sitting in a darkened room playing Clash Royale. But how do you actually use your smartphone every day?

Before choosing any smartphone you should get your priorities straight first.

The point is that in order for you to send WhatsApp messages and publish a few posts on social networks you shouldn’t really need to spend more than about $200. For a gamer who is not prepared to give up a fluid and smooth gaming experience, they had better be on the lookout for smartphones priced at around $400. Whereas those who want the best of the best in terms of design and performance will need to be prepared to spend from about $500 and up.

AndroidPIT Best High End Smartphones Hero 4
Having so many options makes the choice complicated. / © NextPit

Let’s see what are the 10 most important factors to consider before choosing your next smartphone.

1. Mobile carriers and affordable plans

Do you want a new smartphone? Well, you’re pretty much spoiled for choice. Before you whip out your credit card to purchase something online, you should search for the best cell phone plans offered by the various mobile providers. Verizon, AT&T, Sprint and T-Mobile each have something interesting to offer customers, and will often provide complete packages including data, calls and SMS. Who knows, maybe it’s the right time you to consider changing your current provider…you can even keep your current phone number.

Here are some offers from the big four networks in the US:

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Choosing a provider can be complex, but there’s something for everyone. / © NextPit

2. Operating system

If you’re reading this article, you’ve already decided to focus on buying an Android-based device, but there are several versions, and versions of versions, of this Google software. Before buying a new smartphone, so you should brush up on your history of Android – or at the very least examine the differences between the last two versions, Android 9 Pie and Android 10.

Besides these being great treats to satisfy even the biggest sweet tooth, these names correspond to different versions of the Android operating system and each offers unique features and functions. The latest Android version available is Android 10, but unfortunately not all devices have the honor of showing it off. I advise you not to buy a smartphone with outdated versions of Nougat or Marshmellow and instead look for a smartphone with Android Pie at least (and if you are guaranteed an upgrade to the newest and latest Android version, that’s even better).

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Google dropped the sweets theme for the latest version of Android. / © NextPit

3. Design and functionality

In selecting a new smartphone, personal taste is a major decision point, both in terms of software and outward appearance. Some people may prefer more rounded lines and a sinuous design, whereas others like a sturdier look, characterized by straight lines and sharp metal edges. We must admit that with each passing month and the succession of launch events we see within the industry, smartphones are increasingly starting to resemble one another and the choice available is strongly influenced by marketing campaigns and trends.

But, design is based on functionality. A metal unibody is stylish and trendy, but in some cases prevents you from using some features such as a microSD card or a headphone jack. Before buying, check the quality of the device to ensure you’ll be able to use it in the way which is most comfortable and convenient for you (provided these elements are important to you).

AndroidPIT Samsung Galaxy S7 Edge vs LG G4 camera 2203
Glass or leather? Curved lines or right angles? The dilemmas are endless. / © NextPit

4. Size and type of display

For those who like to receive news updates or simply get lost in the HD graphics of the latest Android games, you should really consider a smartphone that is equipped with a display of at least 5.7 inches. For those that use the smartphone mainly for WhatsApp or to read Facebook posts, a smaller screen will be more than sufficient.

As for the display technology, there are two main types in Android: LCD and AMOLED. The main difference between the two lies in the projection of light. In theory, LCD screens tend to be brighter and display content better when in direct sunlight, while the AMOLED display offers sharper contrast and more saturated colors. In practice, however, with the passage of time and the arrival of new technologies, the difference between the two is becoming less noticeable. That said, Full-HD, FullHD+, or QHD resolution for images are almost always impeccable.

androidpit oneplus 7 pro vs galaxy s10 plus hero 2
The AMOLED displays tend to be move vivid. / © NextPit

5. Processor and RAM

The processor is the hub of a device on which depends the overall performance. Sometimes, processor capability is what limits software updates. Qualcomm and Mediatek are a safe bet.

Meanwhile, Huawei with its Kirin processor is proving itself able to offer good performance to users. It should also be noted that for any processor to be its best, the amount of available RAM is crucial. Yes, the processor is important, but we need to look to the smartphone and its technical specifications as a whole.

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The latest Snapdragon 865. / © Qualcomm

6. Internal storage

When you’re scoping out your next Android, check the RAM and internal storage, but not just what it says on the sticker. Take a look at how much space the preinstalled apps take up. Although you can use a MicroSD card to expand your smartphone’s storage capacity, do not forget that a larger internal memory is recommended over using an external card.

At the same time, before you opt for a model with 128GB or 256GB of internal storage, think about how much you’ll actually use. Are you using your smartphone as an external hard drive for your computer by saving movies, music, files and heavy apps? If the answer is no, you’re probably OK with 64GB. Not to mention that you can take advantage of cloud services to save some space and still always have your files at hand, provided you have an internet connection. As a general rule, considering smartphones on the market, it is advisable to opt for at least 4GB of RAM and 64GB of internal memory.

Darth Vader micro SD ANDROIDPIT
Expandable memory or the cloud? / © Mediatek

7. Battery life

Battery life is one of the most important features to consider when choosing a new smartphone. Do not be fooled: a higher number of mAh does not amount to more and more battery life, or to a longer battery life cycle. The factors that come into play are different and it’s worth knowing them.

For example, you should consider that screens with a higher resolution consume more energy, while the latest processors optimize battery life. Then there’s display refresh rates and quick charging technology to think about. Rather than just looking at tech specs, it’s best to check out reviews and benchmark results to know how all these factors perform when combines in a single device. At the moment, 4,000 mAh seems to be the standard.

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Don’t forget about the battery. / © Mediatek

8. Camera quality and creativity

Smartphone manufacturers are starting to pay more attention to camera quality and features lately, and that’s a great thing for users. The number of megapixels, hybrid autofocus, optical stabilization, manual modes, special effects, and special selfie features: smartphones are becoming more and more like a digital camera.

Once again, I recommend you not to dwell too much on the numbers showing on the technical sheet. The MP does not tell the whole story and it is important to get an idea of the type of integrated sensor, lens quality, and pixel size. You’ll find all the details specified in our reviews, but once you’re in the store it will cost you nothing to start the camera app and check the brightness of the shots and software features for yourself.

AndroidPIT camera test comparison 2
Megapixels aren’t everything. / © NextPit

9. Software and integrated functions

Do you need a phone that can do absolutely everything? Are you one of those people who needs a built-in fingerprint sensor, heart rate monitor, UV sensor, Swiss Army knife, and a batmobile? You have a wide range of choices here, from the latest top of the line to a mid-range smartphone you will find all the latest hardware innovations.

But don’t limit yourself to choose a smartphone based on the hardware features. Activate the display and explore the software in-depth to find out what hidden features are there and if it provides options that work for you. Often share the device with your children? Ensure you have a guest mode or parental control. Do you like reading ebooks directly on Android? Select an interface that allows you to adjust the hue of the display and that implements some anti-strain eye protection. In short, do not stop at appearances and thoroughly investigate the system. 

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Navigate between the features of each device. / © NextPit

10. Price compared to performance

Last on our list, but probably the first factor to consider if you have a limited budget, it is definitely the price. What do you want to spend on your next smartphone? Is it worth it to use all your salary or is it perhaps appropriate to limit yourself and choose something cheaper but equally powerful and in step with the times? The choice is yours, but be aware that for any price range there are some devices better than others.

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