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Three 5G SIM Only Deals

  • Compare Three 5G SIM only deals
  • Huge choice of great value plans
  • Choose from a 12 month or 1 month rolling contract
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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

Triple SIM (Standard, Micro and Nano)

Micro SIM card
Three
4GB Data
Unlimited Mins
Unlimited Texts
12 month contract
£6.00 a month
12 month contract
£6.00 a month
Black Friday

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
Black Friday

Triple SIM (Standard, Micro and Nano)

Micro SIM card
Three
8GB Data
Unlimited Mins
Unlimited Texts
12 month contract
£8.00 a month
12 month contract
£8.00 a month

Triple SIM (Standard, Micro and Nano)

Micro SIM card
Three
30GB Data
Unlimited Mins
Unlimited Texts
12 month contract
£12.00 a month
12 month contract
£12.00 a month
Exclusive Deal

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
Black Friday

Triple SIM (Standard, Micro and Nano)

Micro SIM card
Three
4GB Data
Unlimited Mins
Unlimited Texts
1 month contract
£16.00 a month
1 month contract
£16.00 a month

Triple SIM (Standard, Micro and Nano)

Micro SIM card
Three
12GB Data
Unlimited Mins
Unlimited Texts
1 month contract
£19.00 a month
1 month contract
£19.00 a month
  • Overview

Overview

Why choose Three 5G SIM Only?

There is a wide range of reasons to choose a 5G SIM Only plan on Three. For one thing, all of its SIM Only plans are 5G-ready at no extra cost. That means you get tremendous value and there is a large range of plans to choose from, with different allowances and contract durations.

Both of those points are worth highlighting, as while Three offers unlimited data 5G-ready plans, it also offers a lot of other allowances, giving you more choice than most networks.

And when it comes to contract duration, you can choose between the extreme flexibility of a 30-day contract, or a cheaper but longer term 12 or 24-month contract. This aspect too gives you more choice than most networks, as well as ensuring that you don’t have to be tied in for as long as you would be if you bought a handset on contract.

And speaking of which, 5G SIM Only is a lot cheaper than opting to get a handset as part of the contract, since all you’re paying for is your allowances. You will want to make sure you have a 5G phone though one way or another, or you won’t get 5G speeds.

Three also has more spectrum ideal for 5G use than rivals, which could allow it to offer a faster, more reliable experience.

Three 5G coverage

Three plans to roll out 5G to a large number of towns and cities across the UK in the near future. For full details, check out our Three 5G coverage page.

Three 5G speeds

Three has claimed that it will be able to offer 5G speeds that are up to twice as fast as rival networks, due to having more 5G spectrum.

It’s a claim that could be true, as its 5G home broadband has a peak speed of 1.6Gbps, which is exceedingly fast.

Added extras

Three gives its customers access to a number of extras. For example, some plans come with Go Binge, which lets you use select streaming media services without it coming out of your data allowance.

Three also offers both Wi-Fi Calling and 4G Calling, so you can make and receive calls in more places and in higher quality.

Data roaming

Three lets all new and upgrading customers roam for free in 71 global destinations at the time of writing, including most of Europe and a number of other places, such as the US, Australia and New Zealand.

Tethering

You can use as much of your data as you want for tethering, meaning you can get other devices like laptops and tablets online by broadcasting a Wi-Fi network from your phone. And if that network is powered by 5G then it should be very, very fast.

How can I keep my number when switching?

Once you’ve signed up for a new Three 5G SIM Only plan, just text the word ‘PAC’ and your date of birth (in the format DDMMYY) to 65075, from the number that you want to keep.

You’ll then receive a reply with your PAC (Porting Authorisation Code). You can also get this by contacting your old network and asking for it.

Either way, once you have it you simply give it to Three, along with your new temporary Three number and the old number you want to keep, and Three will do the rest, generally transferring your number on the next working day.

This transfer process will also close down your account with your old network, so you won’t need to manually do that.

Which size SIM will I get?

Three will supply a Trio SIM which supports SIM card slots of all sizes, you simply pop the right size out and put it in your phone. However, the vast majority of handsets now use the smallest size, known as a nano SIM, so that’s what you’ll probably need.

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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