Updated automatically with the latest Three SIM plans
If you’re looking for a Three Mobile SIM only deal, you’re in the right place. Whether you want a cheap monthly plan, a big-data bundle, or a flexible, no-contract SIM, Olimit.co.uk keeps this page updated automatically with the freshest offers available right now.
Below you’ll find the latest live Three SIM-only deals — including unlimited data, eSIM options, and no-credit-check plans.
Why Pick Three Mobile?
Three is one of the UK’s most popular networks, offering fast 5G coverage, great value for money, and no-nonsense SIM options.
Most Three SIM-only plans come with:
-5G access at no extra cost
-Unlimited minutes and texts
-Free tethering and hotspot use
-eSIM support for instant activation
–Roaming in up to 45 destinations
If you’re switching from another provider, you can usually move your number in minutes. Use our PAC Code Guide for step-by-step help.
Latest Three SIM-Only Deals
Below are the current Three Mobile offers, refreshed daily through Olimit’s live listing system.
You’ll always see the newest discounts, short-term promos, and data bundles — no expired plans, no guesswork.
👉 Compare the latest deals right here:
Three Sim OnlyeSIMAvailable
120GBof data£12until April 2026Price rises every April in contract by £2.3012 Months ContractThree Sim DealeSIMAvailable12 Month Paramount+8GBof data£12until April 2026Price rises every April in contract by £1.9024 Months ContractThree Sim Unlimited DealeSIMAvailableUnlimiteddata£28until April 2026Price rises every April in contract by £2.3024 Months ContractThree+ RewardsThree Value Sim DealeSIMAvailable6 month Paramount+12GBof data£19until April 2026Price rises every April in contract by £1.9012 Months Contract
49 Roaming Destinations12GB
Åland Islands (Finland)
Austria
Azores (Portugal)
Balearic Islands (Spain)
Belgium
Bulgaria
Croatia
Cyprus
Czech Republic
Denmark
Estonia
Finland
France
French Guiana
Germany
Gibraltar
Greece
Guadeloupe
Guernsey
Hungary
Iceland
Ireland
Isle of Man
Italy
Jersey
Latvia
Liechtenstein
Lithuania
Luxembourg
Malta
Martinique
Mayotte
Netherlands
Norway
Poland
Réunion
Romania
Saint Barthelemy
San Marino (Italy)
Slovakia
Slovenia
Sweden
Switzerland
Vatican City
Three Sim DealeSIMAvailable12GBof data£6until April 2026Price rises every April in contract by £1.9012 Months ContractThree Complete Sim DealeSIMAvailable24 month Paramount+120GBof data£22until April 2026Price rises every April in contract by £2.3024 Months Contract
163 Roaming Destinations12GB
Australia
Brazil
Chile
Colombia
Costa Rica
El Salvador
Guatemala
Hong Kong (China)
Indonesia
Macao (China)
New Zealand
Nicaragua
Panama
Peru
Puerto Rico
Singapore
Sri Lanka
United States of America (USA)
Uruguay
U.S. Virgin Islands
Vietnam
Albania
Andorra
Anguilla
Argentina
Armenia
Aruba (Netherlands Antilles)
Azerbaijan
Bahamas
Bahrain
Bangladesh
Barbados
Bermuda
Bonaire (Netherlands Antilles)
Bosnia and Herzegovina
British Virgin Islands
Brunei
Burkina Faso
Cambodia
Cameroon
Canada
Cayman Islands
China
Curaçao (Netherlands Antilles)
Cyprus, North (Turkey)
Côte d’Ivoire (Ivory Coast)
Dominica
Dominican Republic
Ecuador
Egypt
Faroe Islands
Gabon
Georgia
Ghana
Greenland
Grenada
Guinea
Guyana
Haiti
Honduras
India
Jamaica
Japan
Jordan
Kazakhstan
Kenya
Kosovo
Kuwait
Kyrgyzstan
Liberia
Madagascar
Malawi
Malaysia
Mexico
Moldova
Montenegro
Montserrat
Morocco
Myanmar
Niger
Nigeria
North Macedonia
Oman
Pakistan
Paraguay
Qatar
Rwanda
Saba (Netherlands Antilles)
Saint Kitts and Nevis
Saint Lucia
Saint Vincent and the Grenadines
Saudi Arabia
Senegal
Serbia
Seychelles
South Africa
South Korea
Suriname
Taiwan
Tajikistan
Thailand
Trinidad and Tobago
Tunisia
Turks and Caicos Islands
Uganda
Ukraine
United Arab Emirates (UAE)
Uzbekistan
Zambia
Three Sim DealeSIMAvailableUnlimiteddata£20until April 2026Price rises every April in contract by £2.3024 Months ContractThree Sim DealeSIMAvailable12GBof data£14until April 2026Price rises every April in contract by £1.9012 Months ContractThree Complete Sim DealeSIMAvailable24 month Paramount+60GBof data£20until April 2026Price rises every April in contract by £1.9024 Months Contract
163 Roaming Destinations12GB
🇦🇽 Åland Islands (Finland)
🇦🇹 Austria
🇵🇹 Azores (Portugal)
🇪🇸 Balearic Islands (Spain)
🇧🇪 Belgium
🇧🇬 Bulgaria
🇪🇸 Canary Islands (Spain)
🇭🇷 Croatia
🇨🇾 Cyprus
🇨🇿 Czech Republic
🇩🇰 Denmark
🇪🇪 Estonia
🇫🇮 Finland
🇫🇷 France
🇬🇫 French Guiana
🇩🇪 Germany
🇬🇮 Gibraltar
🇬🇷 Greece
🇬🇵 Guadeloupe
🇬🇬 Guernsey
🇭🇺 Hungary
🇮🇸 Iceland
🇮🇪 Ireland
🇮🇲 Isle of Man
🇮🇹 Italy
🇯🇪 Jersey
🇱🇻 Latvia
🇱🇮 Liechtenstein
🇱🇹 Lithuania
🇱🇺 Luxembourg
🇵🇹 Madeira (Portugal)
🇲🇹 Malta
🇲🇶 Martinique
🇾🇹 Mayotte
🇳🇱 Netherlands
🇳🇴 Norway
🇵🇱 Poland
🇵🇹 Portugal
🇷🇪 Réunion
🇷🇴 Romania
🇧🇱 Saint Barthelemy
🇫🇷 Saint Martin
🇸🇲 San Marino (Italy)
🇸🇰 Slovakia
🇸🇮 Slovenia
🇪🇸 Spain
🇸🇪 Sweden
🇨🇭 Switzerland
🇻🇦 Vatican City
🇦🇺 Australia
🇧🇷 Brazil
🇨🇱 Chile
🇨🇴 Colombia
🇨🇷 Costa Rica
🇸🇻 El Salvador
🇬🇹 Guatemala
🇭🇰 Hong Kong (China)
🇮🇩 Indonesia
🇲🇴 Macao (China)
🇳🇿 New Zealand
🇳🇮 Nicaragua
🇵🇦 Panama
🇵🇪 Peru
🇵🇷 Puerto Rico
🇸🇬 Singapore
🇱🇰 Sri Lanka
🇺🇸 United States of America (USA)
🇺🇾 Uruguay
🇻🇮 U.S. Virgin Islands
🇻🇳 Vietnam
🇦🇱 Albania
🇦🇩 Andorra
🇦🇬 Anguilla
🇦🇬 Antigua and Barbuda
🇦🇷 Argentina
🇦🇲 Armenia
🇦🇼 Aruba (Netherlands Antilles)
🇦🇿 Azerbaijan
🇧🇸 Bahamas
🇧🇭 Bahrain
🇧🇩 Bangladesh
🇧🇧 Barbados
🇧🇲 Bermuda
🇧🇴 Bonaire (Netherlands Antilles)
🇧🇦 Bosnia and Herzegovina
🇻🇬 British Virgin Islands
🇧🇳 Brunei
🇧🇫 Burkina Faso
🇰🇭 Cambodia
🇨🇲 Cameroon
🇨🇦 Canada
🇰🇾 Cayman Islands
🇨🇳 China
🇨🇼 Curaçao (Netherlands Antilles)
🇹🇷 Cyprus, North (Turkey)
🇨🇮 Côte d’Ivoire (Ivory Coast)
🇩🇲 Dominica
🇩🇴 Dominican Republic
🇪🇨 Ecuador
🇪🇬 Egypt
🇫🇴 Faroe Islands
🇬🇦 Gabon
🇬🇪 Georgia
🇬🇭 Ghana
🇬🇱 Greenland
🇬🇩 Grenada
🇬🇳 Guinea
🇬🇾 Guyana
🇭🇹 Haiti
🇭🇳 Honduras
🇮🇳 India
🇯🇲 Jamaica
🇯🇵 Japan
🇯🇴 Jordan
🇰🇿 Kazakhstan
🇰🇪 Kenya
🇽🇰 Kosovo
🇰🇼 Kuwait
🇰🇬 Kyrgyzstan
🇱🇷 Liberia
🇲🇬 Madagascar
🇲🇼 Malawi
🇲🇾 Malaysia
🇲🇽 Mexico
🇲🇩 Moldova
🇲🇪 Montenegro
🇲🇸 Montserrat
🇲🇦 Morocco
🇲🇲 Myanmar
🇳🇪 Niger
🇳🇬 Nigeria
🇲🇰 North Macedonia
🇴🇲 Oman
🇵🇰 Pakistan
🇵🇾 Paraguay
🇶🇦 Qatar
🇷🇼 Rwanda
🇧🇶 Saba (Netherlands Antilles)
🇰🇳 Saint Kitts and Nevis
🇱🇨 Saint Lucia
🇻🇨 Saint Vincent and the Grenadines
🇸🇦 Saudi Arabia
🇸🇳 Senegal
🇷🇸 Serbia
🇸🇨 Seychelles
🇧🇶 Sint Eustatius (Netherlands Antilles)
🇧🇶 Sint Maarten (Netherlands Antilles)
🇿🇦 South Africa
🇰🇷 South Korea
🇸🇷 Suriname
🇹🇼 Taiwan
🇹🇯 Tajikistan
🇹🇭 Thailand
🇹🇹 Trinidad and Tobago
🇹🇳 Tunisia
🇹🇷 Turkey
🇹🇨 Turks and Caicos Islands
🇺🇬 Uganda
🇺🇦 Ukraine
🇦🇪 United Arab Emirates (UAE)
🇺🇿 Uzbekistan
🇿🇲 Zambia
Three Sim DealeSIMAvailable6 months Paramount+25GBof data£13until April 2026Price rises every April in contract by £1.9012 Months Contract
49 Roaming Destinations12GB
🇦🇽 Åland Islands (Finland)
🇦🇹 Austria
🇵🇹 Azores (Portugal)
🇪🇸 Balearic Islands (Spain)
🇧🇪 Belgium
🇧🇬 Bulgaria
🇪🇸 Canary Islands (Spain)
🇭🇷 Croatia
🇨🇾 Cyprus
🇨🇿 Czech Republic
🇩🇰 Denmark
🇪🇪 Estonia
🇫🇮 Finland
🇫🇷 France
🇬🇫 French Guiana
🇩🇪 Germany
🇬🇮 Gibraltar
🇬🇷 Greece
🇬🇵 Guadeloupe
🇬🇬 Guernsey
🇭🇺 Hungary
🇮🇸 Iceland
🇮🇪 Ireland
🇮🇲 Isle of Man
🇮🇹 Italy
🇯🇪 Jersey
🇱🇻 Latvia
🇱🇮 Liechtenstein
🇱🇹 Lithuania
🇱🇺 Luxembourg
🇵🇹 Madeira (Portugal)
🇲🇹 Malta
🇲🇶 Martinique
🇾🇹 Mayotte
🇳🇱 Netherlands
🇳🇴 Norway
🇵🇱 Poland
🇵🇹 Portugal
🇷🇪 Réunion
🇷🇴 Romania
🇧🇱 Saint Barthelemy
🇫🇷 Saint Martin
🇸🇲 San Marino (Italy)
🇸🇰 Slovakia
🇸🇮 Slovenia
🇪🇸 Spain
🇸🇪 Sweden
🇨🇭 Switzerland
🇻🇦 Vatican City
Three Sim Complete Unlimited DealeSIMAvailable12 months Paramount+Unlimiteddata£33until April 2026Price rises every April in contract by £2.3012 Months Contract
163 Roaming Destinations12GB
🇦🇽 Åland Islands (Finland)
🇦🇹 Austria
🇵🇹 Azores (Portugal)
🇪🇸 Balearic Islands (Spain)
🇧🇪 Belgium
🇧🇬 Bulgaria
🇪🇸 Canary Islands (Spain)
🇭🇷 Croatia
🇨🇾 Cyprus
🇨🇿 Czech Republic
🇩🇰 Denmark
🇪🇪 Estonia
🇫🇮 Finland
🇫🇷 France
🇬🇫 French Guiana
🇩🇪 Germany
🇬🇮 Gibraltar
🇬🇷 Greece
🇬🇵 Guadeloupe
🇬🇬 Guernsey
🇭🇺 Hungary
🇮🇸 Iceland
🇮🇪 Ireland
🇮🇲 Isle of Man
🇮🇹 Italy
🇯🇪 Jersey
🇱🇻 Latvia
🇱🇮 Liechtenstein
🇱🇹 Lithuania
🇱🇺 Luxembourg
🇵🇹 Madeira (Portugal)
🇲🇹 Malta
🇲🇶 Martinique
🇾🇹 Mayotte
🇳🇱 Netherlands
🇳🇴 Norway
🇵🇱 Poland
🇵🇹 Portugal
🇷🇪 Réunion
🇷🇴 Romania
🇧🇱 Saint Barthelemy
🇫🇷 Saint Martin
🇸🇲 San Marino (Italy)
🇸🇰 Slovakia
🇸🇮 Slovenia
🇪🇸 Spain
🇸🇪 Sweden
🇨🇭 Switzerland
🇻🇦 Vatican City
🇦🇺 Australia
🇧🇷 Brazil
🇨🇱 Chile
🇨🇴 Colombia
🇨🇷 Costa Rica
🇸🇻 El Salvador
🇬🇹 Guatemala
🇭🇰 Hong Kong (China)
🇮🇩 Indonesia
🇲🇴 Macao (China)
🇳🇿 New Zealand
🇳🇮 Nicaragua
🇵🇦 Panama
🇵🇪 Peru
🇵🇷 Puerto Rico
🇸🇬 Singapore
🇱🇰 Sri Lanka
🇺🇸 United States of America (USA)
🇺🇾 Uruguay
🇻🇮 U.S. Virgin Islands
🇻🇳 Vietnam
🇦🇱 Albania
🇦🇩 Andorra
🇦🇬 Anguilla
🇦🇬 Antigua and Barbuda
🇦🇷 Argentina
🇦🇲 Armenia
🇦🇼 Aruba (Netherlands Antilles)
🇦🇿 Azerbaijan
🇧🇸 Bahamas
🇧🇭 Bahrain
🇧🇩 Bangladesh
🇧🇧 Barbados
🇧🇲 Bermuda
🇧🇴 Bonaire (Netherlands Antilles)
🇧🇦 Bosnia and Herzegovina
🇻🇬 British Virgin Islands
🇧🇳 Brunei
🇧🇫 Burkina Faso
🇰🇭 Cambodia
🇨🇲 Cameroon
🇨🇦 Canada
🇰🇾 Cayman Islands
🇨🇳 China
🇨🇼 Curaçao (Netherlands Antilles)
🇹🇷 Cyprus, North (Turkey)
🇨🇮 Côte d’Ivoire (Ivory Coast)
🇩🇲 Dominica
🇩🇴 Dominican Republic
🇪🇨 Ecuador
🇪🇬 Egypt
🇫🇴 Faroe Islands
🇬🇦 Gabon
🇬🇪 Georgia
🇬🇭 Ghana
🇬🇱 Greenland
🇬🇩 Grenada
🇬🇳 Guinea
🇬🇾 Guyana
🇭🇹 Haiti
🇭🇳 Honduras
🇮🇳 India
🇯🇲 Jamaica
🇯🇵 Japan
🇯🇴 Jordan
🇰🇿 Kazakhstan
🇰🇪 Kenya
🇽🇰 Kosovo
🇰🇼 Kuwait
🇰🇬 Kyrgyzstan
🇱🇷 Liberia
🇲🇬 Madagascar
🇲🇼 Malawi
🇲🇾 Malaysia
🇲🇽 Mexico
🇲🇩 Moldova
🇲🇪 Montenegro
🇲🇸 Montserrat
🇲🇦 Morocco
🇲🇲 Myanmar
🇳🇪 Niger
🇳🇬 Nigeria
🇲🇰 North Macedonia
🇴🇲 Oman
🇵🇰 Pakistan
🇵🇾 Paraguay
🇶🇦 Qatar
🇷🇼 Rwanda
🇧🇶 Saba (Netherlands Antilles)
🇰🇳 Saint Kitts and Nevis
🇱🇨 Saint Lucia
🇻🇨 Saint Vincent and the Grenadines
🇸🇦 Saudi Arabia
🇸🇳 Senegal
🇷🇸 Serbia
🇸🇨 Seychelles
🇧🇶 Sint Eustatius (Netherlands Antilles)
🇧🇶 Sint Maarten (Netherlands Antilles)
🇿🇦 South Africa
🇰🇷 South Korea
🇸🇷 Suriname
🇹🇼 Taiwan
🇹🇯 Tajikistan
🇹🇭 Thailand
🇹🇹 Trinidad and Tobago
🇹🇳 Tunisia
🇹🇷 Turkey
🇹🇨 Turks and Caicos Islands
🇺🇬 Uganda
🇺🇦 Ukraine
🇦🇪 United Arab Emirates (UAE)
🇺🇿 Uzbekistan
🇿🇲 Zambia
Three Sim DealeSIMAvailable3GBof data£5until April 2026Price rises every April in contract by £1.8012 Months ContractThree Sim DealeSIMAvailable25GBof data£8until April 2026Price rises every April in contract by £1.9024 Months ContractThree Sim DealeSIMAvailable120GBof data£12until April 2026Price rises every April in contract by £2.3024 Months ContractThree Sim DealeSIMAvailable12GBof data£13until April 2026Price rises every April in contract by £1.9024 Months ContractThree Sim Complete Unlimited DealeSIMAvailable24 month Paramount+Unlimiteddata£37until April 2026Price rises every April in contract by £2.3024 Months Contract
163 Roaming Destinations12GB
🇦🇽 Åland Islands (Finland)
🇦🇹 Austria
🇵🇹 Azores (Portugal)
🇪🇸 Balearic Islands (Spain)
🇧🇪 Belgium
🇧🇬 Bulgaria
🇪🇸 Canary Islands (Spain)
🇭🇷 Croatia
🇨🇾 Cyprus
🇨🇿 Czech Republic
🇩🇰 Denmark
🇪🇪 Estonia
🇫🇮 Finland
🇫🇷 France
🇬🇫 French Guiana
🇩🇪 Germany
🇬🇮 Gibraltar
🇬🇷 Greece
🇬🇵 Guadeloupe
🇬🇬 Guernsey
🇭🇺 Hungary
🇮🇸 Iceland
🇮🇪 Ireland
🇮🇲 Isle of Man
🇮🇹 Italy
🇯🇪 Jersey
🇱🇻 Latvia
🇱🇮 Liechtenstein
🇱🇹 Lithuania
🇱🇺 Luxembourg
🇵🇹 Madeira (Portugal)
🇲🇹 Malta
🇲🇶 Martinique
🇾🇹 Mayotte
🇳🇱 Netherlands
🇳🇴 Norway
🇵🇱 Poland
🇵🇹 Portugal
🇷🇪 Réunion
🇷🇴 Romania
🇧🇱 Saint Barthelemy
🇫🇷 Saint Martin
🇸🇲 San Marino (Italy)
🇸🇰 Slovakia
🇸🇮 Slovenia
🇪🇸 Spain
🇸🇪 Sweden
🇨🇭 Switzerland
🇻🇦 Vatican City
🇦🇺 Australia
🇧🇷 Brazil
🇨🇱 Chile
🇨🇴 Colombia
🇨🇷 Costa Rica
🇸🇻 El Salvador
🇬🇹 Guatemala
🇭🇰 Hong Kong (China)
🇮🇩 Indonesia
🇲🇴 Macao (China)
🇳🇿 New Zealand
🇳🇮 Nicaragua
🇵🇦 Panama
🇵🇪 Peru
🇵🇷 Puerto Rico
🇸🇬 Singapore
🇱🇰 Sri Lanka
🇺🇸 United States of America (USA)
🇺🇾 Uruguay
🇻🇮 U.S. Virgin Islands
🇻🇳 Vietnam
🇦🇱 Albania
🇦🇩 Andorra
🇦🇬 Anguilla
🇦🇬 Antigua and Barbuda
🇦🇷 Argentina
🇦🇲 Armenia
🇦🇼 Aruba (Netherlands Antilles)
🇦🇿 Azerbaijan
🇧🇸 Bahamas
🇧🇭 Bahrain
🇧🇩 Bangladesh
🇧🇧 Barbados
🇧🇲 Bermuda
🇧🇴 Bonaire (Netherlands Antilles)
🇧🇦 Bosnia and Herzegovina
🇻🇬 British Virgin Islands
🇧🇳 Brunei
🇧🇫 Burkina Faso
🇰🇭 Cambodia
🇨🇲 Cameroon
🇨🇦 Canada
🇰🇾 Cayman Islands
🇨🇳 China
🇨🇼 Curaçao (Netherlands Antilles)
🇹🇷 Cyprus, North (Turkey)
🇨🇮 Côte d’Ivoire (Ivory Coast)
🇩🇲 Dominica
🇩🇴 Dominican Republic
🇪🇨 Ecuador
🇪🇬 Egypt
🇫🇴 Faroe Islands
🇬🇦 Gabon
🇬🇪 Georgia
🇬🇭 Ghana
🇬🇱 Greenland
🇬🇩 Grenada
🇬🇳 Guinea
🇬🇾 Guyana
🇭🇹 Haiti
🇭🇳 Honduras
🇮🇳 India
🇯🇲 Jamaica
🇯🇵 Japan
🇯🇴 Jordan
🇰🇿 Kazakhstan
🇰🇪 Kenya
🇽🇰 Kosovo
🇰🇼 Kuwait
🇰🇬 Kyrgyzstan
🇱🇷 Liberia
🇲🇬 Madagascar
🇲🇼 Malawi
🇲🇾 Malaysia
🇲🇽 Mexico
🇲🇩 Moldova
🇲🇪 Montenegro
🇲🇸 Montserrat
🇲🇦 Morocco
🇲🇲 Myanmar
🇳🇪 Niger
🇳🇬 Nigeria
🇲🇰 North Macedonia
🇴🇲 Oman
🇵🇰 Pakistan
🇵🇾 Paraguay
🇶🇦 Qatar
🇷🇼 Rwanda
🇧🇶 Saba (Netherlands Antilles)
🇰🇳 Saint Kitts and Nevis
🇱🇨 Saint Lucia
🇻🇨 Saint Vincent and the Grenadines
🇸🇦 Saudi Arabia
🇸🇳 Senegal
🇷🇸 Serbia
🇸🇨 Seychelles
🇧🇶 Sint Eustatius (Netherlands Antilles)
🇧🇶 Sint Maarten (Netherlands Antilles)
🇿🇦 South Africa
🇰🇷 South Korea
🇸🇷 Suriname
🇹🇼 Taiwan
🇹🇯 Tajikistan
🇹🇭 Thailand
🇹🇹 Trinidad and Tobago
🇹🇳 Tunisia
🇹🇷 Turkey
🇹🇨 Turks and Caicos Islands
🇺🇬 Uganda
🇺🇦 Ukraine
🇦🇪 United Arab Emirates (UAE)
🇺🇿 Uzbekistan
🇿🇲 Zambia
Three Sim DealeSIMAvailable250GBof data£16until April 2026Price rises every April in contract by £2.3012 Months ContractThree Sim Unlimited DealeSIMAvailableParamount+: 12m inclusiveUnlimiteddata£25until April 2026Price rises every April in contract by £2.3024 Months Contract
73 Roaming Destinations12GB
🇦🇽 Åland
🇦🇺 Australia
🇦🇹 Austria
🇵🇹 Azores
🇪🇸 Balearic Islands
🇧🇪 Belgium
🇧🇷 Brazil
🇧🇬 Bulgaria
🇪🇸 Canary Islands
🇨🇱 Chile
🇨🇴 Colombia
🇨🇷 Costa Rica
🇭🇷 Croatia
🇨🇾 Cyprus
🇨🇿 Czech Republic
🇩🇰 Denmark
🇸🇻 El Salvador
🇪🇪 Estonia
🇫🇰 Falkland Islands
🇫🇮 Finland
🇫🇷 France
🇩🇪 Germany
🇬🇮 Gibraltar
🇬🇷 Greece
🇬🇱 Greenland
🇬🇵 Guadeloupe
🇬🇹 Guatemala
🇬🇬 Guernsey
🇬🇫 Guyane (French Guiana)
🇭🇰 Hong Kong
🇭🇺 Hungary
🇮🇸 Iceland
🇮🇩 Indonesia
🇮🇪 Ireland
🇮🇲 Isle of Man
🇮🇹 Italy
🇯🇪 Jersey
🇱🇻 Latvia
🇱🇮 Liechtenstein
🇱🇹 Lithuania
🇱🇺 Luxembourg
🇲🇴 Macao
🇵🇹 Madeira
🇲🇹 Malta
🇲🇶 Martinique
🇾🇹 Mayotte
🇳🇱 Netherlands
🇳🇿 New Zealand
🇳🇮 Nicaragua
🇳🇴 Norway
🇵🇦 Panama
🇵🇪 Peru
🇵🇱 Poland
🇵🇹 Portugal
🇵🇷 Puerto Rico
🇷🇪 Réunion
🇷🇴 Romania
🇧🇱 Saint-Barthélemy
🇫🇷 Saint-Martin (FR)
🇸🇲 San Marino
🇸🇬 Singapore
🇸🇰 Slovakia
🇸🇮 Slovenia
🇪🇸 Spain
🇱🇰 Sri Lanka
🇸🇪 Sweden
🇨🇭 Switzerland
🇻🇮 U.S. Virgin Islands
🇺🇾 Uruguay
🇺🇸 USA
🇻🇦 Vatican City
🇻🇳 Vietnam
What You Get With a Three SIM Plan
- 5G speeds across major UK cities — check our 4G & 5G Speed Guide for network performance.
- No long contracts – choose rolling monthly or 12-month options.
- Instant activation with eSIM support on most new phones.
- Flexible data plans for light users or heavy streamers.
- Roaming available in over 45 countries.
If you’re not sure which SIM type fits your phone, read our SIM Card Type Guide — it explains eSIM vs nano SIM vs PAYG in simple terms.
Explore More on Olimit
- 🔍 All SIM-Only Deals – every UK network, updated live.
- 📶 Unlimited Data SIMs – for power users and remote workers.
- 📖 Guides & Tutorials – how-tos, tips, and switching advice.
- ⭐ Customer Reviews – see what real users think.
- 📞 Contact Us – quick support from our team.
Why Use Olimit.co.uk
At Olimit, we compare all major UK networks — including Three, EE, Vodafone, O2, and Smarty — to help you find the best deal without hidden fees or outdated info.
We combine verified partner feeds and human-checked listings to make sure every price you see is current.
That means when a provider launches a new deal, it appears here automatically — no waiting for monthly updates.
Common Questions
Does Three offer eSIM?
Yes — eSIM is available on most new devices, and activation takes just a few minutes.
Can I keep my number when switching?
Absolutely. Get your PAC code and follow our PAC Code Guide to transfer your number easily.
Is 5G included on all plans?
Yes — Three includes 5G coverage at no extra charge.
Where can I see all networks?
Check our SIM-Only Deals page to compare offers from every UK provider.
