The Best Three Mobile Deals

Three Mobile Sim-Only Deals

Compare the best Three Mobile deals for the month of November. Find a cheap Three Mobile deal with a monthly plan or sim-only tariff. Save money on your mobile phone bill and get extras every month. Benefit from 24-month contracts, 30-day rolling contracts, pay as you go, data packs, and a fast 5G network, all with Three Mobile.

Best Three Mobile Deals in the UK

The best Three Mobile deals in the UK are monthly plans which you can get with a handset included. A handset deal with Three also comes with a monthly data allowance, unlimited texts and unlimited minutes. The best Three handset deals in November 2021 come with the newest phones and unlimited data for up to 50% off the normal monthly price.

All Three Mobile deals involve 24-month contracts. If you decide to cancel your contract, you’ll need to give 30 days notice. If you’re ending your contract early, you might have to pay a cancellation fee. 

Three Mobile Sim-Only Deals

Three Mobile sim-only deals offer unlimited texts, unlimited minutes and as much data allowance as you need. The cost of your Three sim-only deals will be based on the data allowance you choose and the contract length. Choose from a 24-month contract, 12-month contract, or 1-month contract.

24 months Advanced plan 

  • Unlimited data for £10 a month (was £20)
  • 100GB for £16 a month
  • 30GB for £12 a month (only available online)
  • 12GB for £12 a month
  • 8GB for £10 a month
  • 4GB for £9 a month
  • 1GB for £6 a month

12 months Advanced plan 

  • Unlimited data for £20 a month
  • 30GB for £15 a month
  • 12GB for £13 a month
  • 8GB for £11 a month
  • 4GB for £10 a month
  • 1GB for £7 a month

1 month Advanced plan

  • Unlimited data for £28 a month
  • 30GB for £24 a month
  • 12GB for £22 a month
  • 4GB for £19 a month

Three advanced plans come with lots of benefits, such as:

  • Roaming in 42 destinations with Feel At Home
  • Personal Hotspot
  • Spend Cap
  • Change your plan when you need to
  • 5G coverage at no extra cost

All prices listed above are correct at the time of writing but could change - we’ve included them as a guide. To get accurate pricing information, it’s important to check with the provider directly.

More Three Mobile Plans and Tariffs

Pay as you go

Only pay for what you use with pay as you go (PAYG). Order a free sim and pay for calls, texts and data only when you need them. PAYG is more expensive than monthly plans for the same amount of data, but if your usage is sporadic it may be worth your while. Here’s how much Three PAYG will set you back:

Calls (per minute) Texts Data (per MB)
10p 10p 5p


Data Pack 

Three Mobile data packs offer unlimited minutes and texts, and let you choose the data allowance you need every 30 days. All you have to do is choose the data you want for the next 30 days and buy one of the following Three Mobile data packs on Amazon:

  12GB 30GB 50GB Unlimited
  £10 £15 £20 £35

Prices have been included as a guide - they’re correct at the time of writing but may change. Data packs are different to monthly plans because they’re commitment-free. It lasts a month and you decide whether to renew or not.

Business Plan 

If you have your own business, Three will make you a price promise: If you find a cheaper mobile phone deal at EE, Vodafone, or O2, Three will beat their price by at least £1 a month. The Three business plan is available whether you’re a new or existing customer. 

These are the three steps you need to follow to get your business plan:

  • Call Three, go to a store, or chat to the Three Mobile team online in order to show the quotes you’ve seen from other providers. 
  • Three will confirm the details and compare it to their pricing.
  • They’ll be in touch with you to offer you a better price than their competitors.

Three Benefits and Extras

Refer a friend

Recommend a phone, tablet, or broadband to a friend and you’ll receive up to £80. All you have to do is choose a device that your friend might like and share the link you’ll be sent with your friend. You’ll get your money once your friend finalises their order. 

Data Boost 

You can get a monthly data boost if you’re often running low on data. The monthly boosts offer different data allowances and vary in cost accordingly:

1GB 3GB 6GB Unlimited
£5 £7 £8 £15


These prices are correct at the time of writing but may change. Data boosts renew automatically every month, so you don’t need to worry about  running out of data. You can cancel your data boost any time you want but you need to give 30 days notice.

Go Binge

Get streaming perks as a Three Mobile customer if you joined between 24 April 2017 and 30 September 2020. 

Go Binge gives you unlimited data to use on selected music and video streaming apps. If you like to stream Netflix or Apple Music, you can do so without having to worry about using up your data allowance. Go Binge also supports Snapchat, Soundcloud, Deezer, and TvPlayer. 

Go Binge is available to customers with an advanced monthly handset deal, a sim-only data plan of 12GB and above, or a business data plan of 10GB and above. 

Spend Cap

Spend Cap controls what you spend on your mobile phone bill outside your monthly package. Set your Spend Cap from anywhere between £10 to £100 to make sure your spending is under control after you’ve used up your allowance. 

As soon as you reach your Spend Cap limit, Three will block all chargeable services. To avoid extra charges altogether, set your Spend Cap to £0.

4G and 5G Network Coverage

Three is dedicating more resources to 5G development than any other network provider in an effort to make it the fastest 5G network in the UK. Three Mobile offers 5G in 194 locations across the UK and is still expanding. 

4G network coverage is available with Three Mobile across 99.8% of the UK. If your mobile phone supports 5G and it’s available in your area, you’ll get it at no extra cost, but in most places you’ll be on 4G. Use an online coverage checker to see if Three has gone live with 5G in your area. 

Data Speeds

Three offers competitive 4G and 5G data speeds.

Average speeds available on Three’s 5G network:

  • Downloads: 210 Mbps
  • Uploads: 12 Mbps

Average speeds available on Three’s 4G network:

  • Downloads: 22 Mbps
  • Uploads: 8 Mbps


Three offers roaming in 44 destinations at no extra cost with Go Roam Europe. 

If you’re joining Three Mobile after 1st of October 2021, you’ll be charged when roaming abroad from May 2022. For Go Roam Europe you’ll be charged £2 a day, and Go Roam Around the World will cost you £5 a day. These charges don’t apply to PAYG customers, who will be able to roam abroad for free. 

The Go Roam in Europe and Around the World destinations are:

Alan Islands Australia Austria
Azores Balearic Islands Belgium
Belgium Brazil Bulgaria
Canary Islands Chile Colombia
Costa Rica Croatia Cyprus
Czech Republic Denmark El Salvador
Estonia Finland France
French Guiana Germany Gibraltar
Greece Guadeloupe Guatemala
Guernsey Hong Kong Hungary
Iceland Indonesia Ireland
Isle of Man Israel Italy
Jersey Latvia Liechtenstein
Lithuania Luxembourg Macau
Madeira Malta Marie-Galante
Martinique Mayotte Netherlands
New Zealand Nicaragua Norway
Panama Peru Poland
Portugal Puerto Rico Republic of Ireland
Reunion Romania Saint Barthélemy
Saint Martin San Marino Singapore
Slovakia Slovenia Spain
Sri Lanka Sweden Switzerland
United States United Kingdom US Virgin Islands
Vatican City Vietnam  

Calling abroad from the UK

Pay monthly customers can access the call abroad add-on to call UK numbers at a lower price. There are two options to choose from:

Call abroad 100

  • 100 international minutes each month
  • Valid in 55 countries

Call abroad unlimited

  • Unlimited international calls every month
  • Valid in 55 countries

 You can cancel your call abroad add-on at any time, but there’s a 30-day notice period.

Three Mobile App

The Three Mobile app is free and allows you to access and manage your mobile account on the go. With the app, you can:

  • Manage your bills
  • Check your plan and usage
  • Top-up your PAYG credit
  • Find exclusive offers

You can also access your account from My3 on the Three website. You will be asked to enter your mobile number and you’ll receive a text with a password to access the service. 

Three Recycle

Sell your old device to Three and they’ll recycle it for you either by repairing it or using it for parts. This way, nothing goes to waste and you get paid for it. Once Three receives your old phone, you’ll be paid within 24 hours if the phone is accepted. 

About Three

Three is among the largest network providers in the UK with over 9.3 million customers and 99% population coverage across the UK.

Ookla named Three Mobile the Fastest 5G Network in the UK and Uswitch have awarded them the Best Network Data award for 2021.

Three Customer Service

Get help fast by chatting online to the Three Mobile support team. Through the chat, Three can help you with billing, technical issues, changes to your account, upgrades, and cancellations. For further help, call Three’s customer service team, which is available 7 days a week. 

Three Mobile Review

Pros Cons
✔️Fastest 5G data speeds in the UK. ❌No replacement for the Wuntu app for customer rewards.
✔️Upgrade to 5G at no extra cost. ❌Less benefits and add-ons than some competitors.


Three Mobile Deals FAQ

Can I rollover unused data on my Three Mobile plan?

No, Three doesn’t offer data rollover.

Does Three offer Wi-Fi calling?

Yes, Three offers Wi-Fi calling. You can use the internet to call as normal when you don’t have any mobile signal.

Can I top up my Three phone online?

Yes, you can top up your Pay as You Go on the Three website or through your My3 account. ​

How do I switch to Three?

You can switch to Three’s network by text. To keep your number, text PAC to 65075 or, to get a new number, text STAC to 75075. You’ll receive a code which Three will use to finalise the switch over to your Three Mobile package.