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5G SIM Only Deals

  • Every single plan comes with 5G
  • All UK 5G mobile networks included
  • Unlimited 5G data plans available
  • Keep your existing number
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Recommended

Triple SIM (Standard, Micro and Nano)

Micro SIM card
Three
12GB Data
Unlimited Mins
Unlimited Texts
12 month contract
£8.00 a month
12 month contract
£8.00 a month
Exclusive Deal
Recommended

Triple SIM (Standard, Micro and Nano)

Micro SIM card
O2
10GB Data
Unlimited Mins
Unlimited Texts
12 month contract
£8.00 a month
12 month contract
£8.00 a month
Recommended

Triple SIM (Standard, Micro and Nano)

Micro SIM card
Three
Unlimited Data
Unlimited Mins
Unlimited Texts
12 month contract
£16.00 a month
12 month contract
£16.00 a month
Exclusive Deal
Recommended

Triple SIM (Standard, Micro and Nano)

Micro SIM card
EE
160GB Data
Unlimited Mins
Unlimited Texts
24 month contract
£20.00 a month
24 month contract
£20.00 a month
Recommended

Triple SIM (Standard, Micro and Nano)

Micro SIM card
O2
150GB Data
Unlimited Mins
Unlimited Texts
12 month contract
£20.00 a month
12 month contract
£20.00 a month
Recommended

Triple SIM (Standard, Micro and Nano)

Micro SIM card
VOXI
45GB Data
Unlimited Mins
Unlimited Texts
1 month contract
£20.00 a month
1 month contract
£20.00 a month
Endless Video Endless Social Media

Triple SIM (Standard, Micro and Nano)

Micro SIM card
Three
2GB Data
200 Mins
Unlimited Texts
12 month contract
£5.00 a month
12 month contract
£5.00 a month

Triple SIM (Standard, Micro and Nano)

Micro SIM card
Three
1GB Data
Unlimited Mins
Unlimited Texts
12 month contract
£5.00 a month
12 month contract
£5.00 a month
  • Overview

Overview

1) Why choose a 5G SIM Only contract?

SIM Only contracts are always cheaper than opting for a new handset, since all you have to pay for are your allowances. So if you already have a phone that you’re happy with or have found one to buy outright at a good price, then SIM Only can be ideal.

SIM Only contracts are also typically shorter term than a Pay Monthly plan with a phone. The latter generally lasts 24 months, while SIM Only contracts are typically either just 30 days (for ultimate flexibility) or 12 months. Though in both cases there are exceptions.

That means that usually on SIM Only you’ll be more frequently able to change or cancel your plan if something more fitting comes along.

Note however that to make full use of a 5G SIM Only contract you will need a 5G phone, so if you don’t already have one then you’ll need to buy one separately. You can use an existing 4G phone, but you won’t get 5G speeds.

2) Which networks offer 5G SIM Only deals?

At the time of writing the following networks all offer 5G SIM Only deals.

EE SIM Only

Vodafone SIM Only

O2 SIM Only

Tesco SIM Only

Three SIM Only

VOXI SIM Only

BT 5G Sky 5G giffgaff 5G

EE

EE currently offers a number of 5G SIM Only plans, including an unlimited 5G plan which has no speed or usage restrictions.

Some of EE’s 5G SIM Only plans come with ‘Smart Benefits’ letting you choose between one and three extras that you keep for the duration of your contract.

In most cases you get to choose one benefit from the following options:

Apple Music, BT Sport Ultimate, Amazon Prime Video, BritBox, Roam Further (which lets you roam in select places beyond Europe at no extra cost), and a Video Data Pass (which lets you use select video streaming services without it affecting your data allowance). The last of those isn’t an option on unlimited data plans, since it wouldn’t be of any use.

However, there’s also a ‘Full Works SIM Plan for iPhone’, which lets you instead choose three of the following benefits:

Apple Music, Apple TV Plus, Apple Arcade, BT Sport Ultimate, and Roam Further.

EE SIM deals

Vodafone

Vodafone also offers a number of 5G SIM Only plans, including some with unlimited 5G data.

The plans are available on 24-month, 12-month or 1-month contracts, and all come with unlimited minutes and texts. 

The difference between the Unlimited Lite, Unlimited and Unlimited Max plans is the maximum speed offered. The cheapest are Unlimited Lite plans, which offer speeds of up to 2Mbps (good for browsing, social media and music streaming), the mid-range Unlimited plans offer speeds of up to 10Mbps (enough to stream HD video), while the Unlimited Max plan has no speed restrictions (for superfast downloads and streaming in UHD).

Of these Unlimited plans, only Unlimited Max is capable of true 5G speeds, however Vodafone stands out through also offering 5G roaming in parts of Spain, Italy, Ireland, and Germany. Plus, select plans come with a subscription to an entertainment service (such as Amazon Prime, YouTube Premium or Spotify Premium) thrown in.

Vodafone SIM deals

Three

Three offers a wide range of 5G SIM Only plans. In fact, all of its SIM Only plans are 5G Ready at no extra cost.

Three’s SIM Only plans primarily stand out through being better value than much of the competition, and of course there’s also an unlimited data option. Three also allows you to roam in 71 destinations at no extra cost on all plans.

Three SIM deals

O2

O2 also offers a wide range of 5G SIM Only plans, including some with unlimited data.

Plans also come with the standard O2 extras, such as access to O2 Priority for discounts, freebies, and early gig tickets.

O2 SIM deals

Tesco Mobile

Tesco Mobile, which uses O2's network, offers a range of 5G SIM Only plans on 12-month contracts.

At the time of writing these plans all come with 5000 minutes and 5000 texts (so virtually unlimited), and top out at unlimited data.

Tesco Mobile SIM deals

VOXI

VOXI currently offers several 5G SIM Only plans, including one with unlimited data. Opt for one with a data limit and there are also extras to help your data go further, in the form of ‘Endless Video’ (which lets you stream content on YouTube, Amazon Prime Video, Netflix, My5, TVPlayer and UKTV Play without it coming out of your data allowance), and ‘Endless Social Media’, which lets you use Snapchat, Instagram, WhatsApp, Facebook, Twitter, Pinterest and Facebook Messenger without it using your data allowance.

These plans are all just 30 days long, so you aren’t tied into a lengthy contract, and VOXI also stands out through offering 5G roaming in the same places as Vodafone.

VOXI SIM deals

BT Mobile

BT Mobile’s SIM Only plans all include 5G, and if you’re a BT Halo customer then you can also get unlimited data.

Beyond that, they give you access to BT’s network of 5 million Wi-Fi hotspots – so you can get speedy internet even when you’re not in a 5G area. They also pair well with BT Broadband, with many plans being cheaper if you have that.

BT Mobile SIM DEALS

Giffgaff

As well as 4G plans Giffgaff also offers what it calls ‘Golden Goodybags’, which include 5G.

These come with up to unlimited data, but beyond that Giffgaff mainly stands out simply by offering competitively low prices.

Giffgaff SIM DEALS

Sky Mobile

Sky Mobile also offers 5G on SIM Only, but to get it at the time of writing you have to order a 4G plan and then add 5G through a monthly add on.

Data limits are low compared to some networks, but so are prices, and Sky Mobile comes with handy extras like the ability to roll over your unused data for up to three years, so it doesn’t go to waste, and for Sky TV customers to watch it on mobile without it eating into their data allowance.

Sky Mobile SIM DEALS

3) Which networks offer unlimited data on 5G SIM Only?

At the time of writing, EE, Vodafone, Three, O2, Tesco Mobile, BT Mobile, Giffgaff and VOXI all offer unlimited data 5G SIM Only plans.

4) Which networks have the best 5G coverage?

5G coverage is rapidly expanding on networks that already offer it, while many networks that don’t are likely to launch soon. As such, the best way to stay up to date is to head to our in-depth 5G coverage pages.

5) What else should I consider when choosing a 5G SIM Only contract?

Beyond allowances, prices and coverage, there are plenty of other things to consider when choosing a network for 5G SIM Only, as they all offer different things.

One obvious point of comparison is free roaming availability, as while they all let you roam for free across most of Europe, some networks also let you roam further, and Vodafone and VOXI even let you roam at 5G speeds in a number of places.

Tethering is another thing you might want to consider if you plan to use your phone to get other devices online, like you would with a 5G broadband device, though most networks now allow this with few to no restrictions beyond your data allowance.

There are then things that are unique to specific networks. For example, some of EE and Vodafone’s plans come with a subscription to an entertainment service of your choice, while O2 offers a Priority app and service full of competitions, freebies, and discounts.

6) What SIM card size do I need?

No matter what network you choose, you should receive a customisable SIM card that can be made to fit a SIM card slot of any size. These are variously called a Multi SIM, Combi SIM, Trio SIM, and other things, but they’re all the same idea, so you don’t need to worry about requesting a specific size or using an adaptor.

7) Frequently Asked Questions

What happens if I’m not in a 5G coverage area?

If you’re not in a 5G coverage area then your phone will revert to a 4G, 3G or 2G signal, depending on what coverage is available, just as 4G phones will revert to 3G or 2G when needed.

However, if you don’t live or work in an area that currently has 5G coverage then you might want to wait before getting a 5G SIM deal anyway, since you probably won’t benefit much until you do have coverage.

Will a 5G SIM card work in a 4G phone?

Yes, but of course it will only be able to provide a 4G signal at most. For 5G speeds you’ll need a 5G handset.

Can I keep my number?

Yes, and the process is simple.

If you’re upgrading on your current network then your number will stay the same anyway, but if moving network you just need to request your PAC code from your old network (while the number is still active), then activate your new SIM if you haven’t already, and tell your new network your PAC code and old number.

Requesting your PAC code can be done by texting ‘PAC’ to 65075 from the number that you want to keep. Giving the code to your new network is usually done via on online form, but the exact process will vary from network to network. If in doubt, give your new network a call.

Can I get a SIM card for my tablet or mobile broadband dongle?

Yes, but you will want a data only SIM which only comes with a bundle of data and doesn't have included minutes and texts.

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