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30-day SIM deals

Most 30-day SIM Only plans come with no credit checks, no contracts, and full flexibility. At Olimit, you can compare the best short-term deals and switch whenever it suits you

Most 30-day SIM Only plans come with no credit checks, no contracts, and full flexibility. At Olimit, you can compare the best short-term deals and switch whenever it suits you

Olimit Tips & Tricks

30-day SIM Only deals offer great flexibility and no long-term commitment, making them ideal if you want to stay in control or avoid credit checks. However, longer contracts such as 12, 18, 24 months sometimes come with better discounts, extras, or faster network access. If you’re after freedom and short-term savings, 30-day plans are a solid choice — just make sure the data, minutes, and roaming fit your needs.

A 30-day SIM Only plan is perfect for people who want flexibility without commitment. It’s ideal if you’re between contracts, trying out a new network, visiting the UK, or if you’ve been declined for a contract. These plans usually don’t require a credit check and let you cancel or switch anytime — making them a smart choice for short-term or low-risk mobile use.

List of SIM Only deals

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No Credit Checks
Smarty Sim Deal
40GB
of data
£10
No Contract

12GB

Åland Islands 🇦🇽
Austria 🇦🇹
Azores 🇵🇹
Balearic Islands 🇪🇸
Belgium 🇧🇪
Bulgaria 🇧🇬
Canary Islands 🇮🇨
Comoros & Mayotte 🇾🇹
Croatia 🇭🇷
Cyprus 🇨🇾
Czech Republic 🇨🇿
Denmark 🇩🇰
Estonia 🇪🇪
Finland 🇫🇮
France 🇫🇷
French Guiana 🇬🇫
Germany 🇩🇪
Gibraltar 🇬🇮
Greece 🇬🇷
Guadeloupe 🇬🇵
Hungary 🇭🇺
Iceland 🇮🇸
Ireland 🇮🇪
Italy 🇮🇹
Latvia 🇱🇻
Lithuania 🇱🇹
Luxembourg 🇱🇺
Madeira 🇵🇹
Malta 🇲🇹
Martinique 🇲🇶
Netherlands 🇳🇱
Norway 🇳🇴
Poland 🇵🇱
Portugal 🇵🇹
Réunion 🇷🇪
Romania 🇷🇴
Saint Barthélemy 🇧🇱
Saint Martin 🇲🇫
San Marino 🇸🇲
Slovakia 🇸🇰
Slovenia 🇸🇮
Spain 🇪🇸
Sweden 🇸🇪
Vatican City 🇻🇦

No Credit Checks
Cancel Anytime
Smarty Sim Deal
16GB
of data
£8
No Contract

12GB

Åland Islands 🇦🇽
Austria 🇦🇹
Azores 🇵🇹
Balearic Islands 🇪🇸
Belgium 🇧🇪
Bulgaria 🇧🇬
Canary Islands 🇮🇨
Comoros & Mayotte 🇾🇹
Croatia 🇭🇷
Cyprus 🇨🇾
Czech Republic 🇨🇿
Denmark 🇩🇰
Estonia 🇪🇪
Finland 🇫🇮
France 🇫🇷
French Guiana 🇬🇫
Germany 🇩🇪
Gibraltar 🇬🇮
Greece 🇬🇷
Guadeloupe 🇬🇵
Hungary 🇭🇺
Iceland 🇮🇸
Ireland 🇮🇪
Italy 🇮🇹
Latvia 🇱🇻
Lithuania 🇱🇹
Luxembourg 🇱🇺
Madeira 🇵🇹
Malta 🇲🇹
Martinique 🇲🇶
Netherlands 🇳🇱
Norway 🇳🇴
Poland 🇵🇱
Portugal 🇵🇹
Réunion 🇷🇪
Romania 🇷🇴
Saint Barthélemy 🇧🇱
Saint Martin 🇲🇫
San Marino 🇸🇲
Slovakia 🇸🇰
Slovenia 🇸🇮
Spain 🇪🇸
Sweden 🇸🇪
Vatican City 🇻🇦

No Credit Checks
Cancel Anytime
Smarty Sim Deal
8GB
of data
£7
No Contract

12GB

Åland Islands 🇦🇽
Austria 🇦🇹
Azores 🇵🇹
Balearic Islands 🇪🇸
Belgium 🇧🇪
Bulgaria 🇧🇬
Canary Islands 🇮🇨
Comoros & Mayotte 🇾🇹
Croatia 🇭🇷
Cyprus 🇨🇾
Czech Republic 🇨🇿
Denmark 🇩🇰
Estonia 🇪🇪
Finland 🇫🇮
France 🇫🇷
French Guiana 🇬🇫
Germany 🇩🇪
Gibraltar 🇬🇮
Greece 🇬🇷
Guadeloupe 🇬🇵
Hungary 🇭🇺
Iceland 🇮🇸
Ireland 🇮🇪
Italy 🇮🇹
Latvia 🇱🇻
Lithuania 🇱🇹
Luxembourg 🇱🇺
Madeira 🇵🇹
Malta 🇲🇹
Martinique 🇲🇶
Netherlands 🇳🇱
Norway 🇳🇴
Poland 🇵🇱
Portugal 🇵🇹
Réunion 🇷🇪
Romania 🇷🇴
Saint Barthélemy 🇧🇱
Saint Martin 🇲🇫
San Marino 🇸🇲
Slovakia 🇸🇰
Slovenia 🇸🇮
Spain 🇪🇸
Sweden 🇸🇪
Vatican City 🇻🇦

No Credit Checks
Cancel Anytime
O2 Mobile Sim Deal
O2 Logo
100GB
of data
£12
until April 2026
Price rises every April in contract by £1.80
12 Month Contract

25GB

Austria 🇦🇹

Azores 🇵🇹 (🇵🇹 part of Portugal)

Belgium 🇧🇪

Bulgaria 🇧🇬

Canary Islands 🇮🇨 (part of 🇪🇸 Spain)

Croatia 🇭🇷

Cyprus 🇨🇾

Czech Republic 🇨🇿

Denmark 🇩🇰

Estonia 🇪🇪

Finland 🇫🇮

France 🇫🇷

Germany 🇩🇪

Gibraltar 🇬🇮

Greece 🇬🇷

Guadeloupe 🇬🇵 (overseas France 🇫🇷)

Guernsey 🇬🇬

Guyane 🇬🇫 (French Guiana, 🇫🇷 overseas)

Hungary 🇭🇺

Iceland 🇮🇸

Ireland 🇮🇪

Isle of Man 🇮🇲

Italy 🇮🇹

Jersey 🇯🇪

Latvia 🇱🇻

Liechtenstein 🇱🇮

Lithuania 🇱🇹

Luxembourg 🇱🇺

Madeira 🇵🇹 (autonomous region of Portugal)

Malta 🇲🇹

Martinique 🇲🇶 (🇫🇷 overseas)

Mayotte 🇾🇹 (🇫🇷 overseas)

Monaco 🇲🇨

Netherlands 🇳🇱

Norway 🇳🇴

Poland 🇵🇱

Portugal 🇵🇹

Réunion 🇷🇪 (🇫🇷 overseas)

Romania 🇷🇴

Saint-Barthélemy 🇧🇱 (🇫🇷 overseas)

Saint-Martin 🇲🇫 (🇫🇷 overseas)

San Marino 🇸🇲

Slovakia 🇸🇰

Slovenia 🇸🇮

Spain 🇪🇸

Sweden 🇸🇪

Switzerland 🇨🇭

Vatican City 🇻🇦

O2 Mobile Sim Deal
O2 Logo
70GB
of data
£10
until April 2026
Price rises every April in contract by £1.80
12 Month Contract

25GB

Austria 🇦🇹

Azores 🇵🇹 (🇵🇹 part of Portugal)

Belgium 🇧🇪

Bulgaria 🇧🇬

Canary Islands 🇮🇨 (part of 🇪🇸 Spain)

Croatia 🇭🇷

Cyprus 🇨🇾

Czech Republic 🇨🇿

Denmark 🇩🇰

Estonia 🇪🇪

Finland 🇫🇮

France 🇫🇷

Germany 🇩🇪

Gibraltar 🇬🇮

Greece 🇬🇷

Guadeloupe 🇬🇵 (overseas France 🇫🇷)

Guernsey 🇬🇬

Guyane 🇬🇫 (French Guiana, 🇫🇷 overseas)

Hungary 🇭🇺

Iceland 🇮🇸

Ireland 🇮🇪

Isle of Man 🇮🇲

Italy 🇮🇹

Jersey 🇯🇪

Latvia 🇱🇻

Liechtenstein 🇱🇮

Lithuania 🇱🇹

Luxembourg 🇱🇺

Madeira 🇵🇹 (autonomous region of Portugal)

Malta 🇲🇹

Martinique 🇲🇶 (🇫🇷 overseas)

Mayotte 🇾🇹 (🇫🇷 overseas)

Monaco 🇲🇨

Netherlands 🇳🇱

Norway 🇳🇴

Poland 🇵🇱

Portugal 🇵🇹

Réunion 🇷🇪 (🇫🇷 overseas)

Romania 🇷🇴

Saint-Barthélemy 🇧🇱 (🇫🇷 overseas)

Saint-Martin 🇲🇫 (🇫🇷 overseas)

San Marino 🇸🇲

Slovakia 🇸🇰

Slovenia 🇸🇮

Spain 🇪🇸

Sweden 🇸🇪

Switzerland 🇨🇭

Vatican City 🇻🇦

O2 Mobile Sim Deal
O2 Logo
32GB
of data
£8
until April 2026
Price rises every April in contract by £1.80
12 Month Contract

25GB

Austria 🇦🇹

Azores 🇵🇹 (🇵🇹 part of Portugal)

Belgium 🇧🇪

Bulgaria 🇧🇬

Canary Islands 🇮🇨 (part of 🇪🇸 Spain)

Croatia 🇭🇷

Cyprus 🇨🇾

Czech Republic 🇨🇿

Denmark 🇩🇰

Estonia 🇪🇪

Finland 🇫🇮

France 🇫🇷

Germany 🇩🇪

Gibraltar 🇬🇮

Greece 🇬🇷

Guadeloupe 🇬🇵 (overseas France 🇫🇷)

Guernsey 🇬🇬

Guyane 🇬🇫 (French Guiana, 🇫🇷 overseas)

Hungary 🇭🇺

Iceland 🇮🇸

Ireland 🇮🇪

Isle of Man 🇮🇲

Italy 🇮🇹

Jersey 🇯🇪

Latvia 🇱🇻

Liechtenstein 🇱🇮

Lithuania 🇱🇹

Luxembourg 🇱🇺

Madeira 🇵🇹 (autonomous region of Portugal)

Malta 🇲🇹

Martinique 🇲🇶 (🇫🇷 overseas)

Mayotte 🇾🇹 (🇫🇷 overseas)

Monaco 🇲🇨

Netherlands 🇳🇱

Norway 🇳🇴

Poland 🇵🇱

Portugal 🇵🇹

Réunion 🇷🇪 (🇫🇷 overseas)

Romania 🇷🇴

Saint-Barthélemy 🇧🇱 (🇫🇷 overseas)

Saint-Martin 🇲🇫 (🇫🇷 overseas)

San Marino 🇸🇲

Slovakia 🇸🇰

Slovenia 🇸🇮

Spain 🇪🇸

Sweden 🇸🇪

Switzerland 🇨🇭

Vatican City 🇻🇦

eSIM
Available
Vodafone Unlimited Sim
Vodafone
Unlimited
data
£24
until April 2026
Price rises every April in contract by £1.80
24 Month Contract

25GB

Iceland 🇮🇸
Ireland 🇮🇪
Isle of Man 🇮🇲
Norway 🇳🇴

eSIM
Available
Voxi Mobile Sim Deal
Voxi logo
Unlimited
data
£35
No Contract

20GB

Iceland 🇮🇸
Ireland 🇮🇪
Isle of Man 🇮🇲
Norway 🇳🇴

No Credit Checks
Cancel Anytime
eSIM
Available
Voxi Mobile Sim Deal
Voxi logo
300GB
of data
£20
No Contract

20GB

Iceland 🇮🇸
Ireland 🇮🇪
Isle of Man 🇮🇲
Norway 🇳🇴

Unlimited Social + Music + Video
No Credit Checks
Cancel Anytime
O2 Mobile Sim Deal
O2 Logo
175GB
of data
£14
until April 2026
Price rises every April in contract by £1.80
12 Month Contract

25GB

Austria 🇦🇹

Azores 🇵🇹 (🇵🇹 part of Portugal)

Belgium 🇧🇪

Bulgaria 🇧🇬

Canary Islands 🇮🇨 (part of 🇪🇸 Spain)

Croatia 🇭🇷

Cyprus 🇨🇾

Czech Republic 🇨🇿

Denmark 🇩🇰

Estonia 🇪🇪

Finland 🇫🇮

France 🇫🇷

Germany 🇩🇪

Gibraltar 🇬🇮

Greece 🇬🇷

Guadeloupe 🇬🇵 (overseas France 🇫🇷)

Guernsey 🇬🇬

Guyane 🇬🇫 (French Guiana, 🇫🇷 overseas)

Hungary 🇭🇺

Iceland 🇮🇸

Ireland 🇮🇪

Isle of Man 🇮🇲

Italy 🇮🇹

Jersey 🇯🇪

Latvia 🇱🇻

Liechtenstein 🇱🇮

Lithuania 🇱🇹

Luxembourg 🇱🇺

Madeira 🇵🇹 (autonomous region of Portugal)

Malta 🇲🇹

Martinique 🇲🇶 (🇫🇷 overseas)

Mayotte 🇾🇹 (🇫🇷 overseas)

Monaco 🇲🇨

Netherlands 🇳🇱

Norway 🇳🇴

Poland 🇵🇱

Portugal 🇵🇹

Réunion 🇷🇪 (🇫🇷 overseas)

Romania 🇷🇴

Saint-Barthélemy 🇧🇱 (🇫🇷 overseas)

Saint-Martin 🇲🇫 (🇫🇷 overseas)

San Marino 🇸🇲

Slovakia 🇸🇰

Slovenia 🇸🇮

Spain 🇪🇸

Sweden 🇸🇪

Switzerland 🇨🇭

Vatican City 🇻🇦

Table of Contents

Best 30-Day SIM Only Deals in the UK

Flexible mobile plans without long contracts — perfect for visitors, students, and anyone who wants freedom over commitment.

Why Choose a 30-Day SIM Deal?

Whether you’re visiting the UK, staying temporarily, or just want to avoid annual contracts, 30-day SIM plans offer complete flexibility:

  • No credit checks — ideal for new arrivals or short-term residents.
  • Prepaid or rolling monthly — you’re in control of renewals.
  • Unlimited data options — stream, browse, and video call freely.
  • Keep your number — switch networks without losing your number (UK port-in supported).

Real-World Use Case

A postgraduate student arrived from Spain and needed a temporary UK number. Instead of signing up for a contract, they activated a 30-day SIM from Voxi — unlimited social data and easy top-up every month, with no paperwork or bills. It worked perfectly during their UK stay.

Who Should Consider a 30-Day Plan?

  • Tourists & temporary workers needing local mobile access for a few weeks or months.
  • International students settling into the UK but not ready for 12-24 month deals.
  • Expats & digital nomads looking for fast UK mobile data with roaming options.
  • Anyone between contracts or testing networks like EE, Vodafone, O2 or Three.

Top UK 30-Day SIM Deals

Compare our best short-term SIM-only plans. All come with easy setup, no contracts, and many include roaming in Europe.

Provider Network Rating eSIM Available Perks
Lyca Mobile EE ⭐⭐⭐⭐ Free EU roaming, global call bundles
Voxi Vodafone ⭐⭐⭐⭐ Endless social media, cancel anytime
Lebara Vodafone ⭐⭐⭐⭐ International minutes included
Three UK  Three ⭐⭐⭐⭐ Great speeds, 5G ready
Giffgaff O2 ⭐⭐⭐⭐ Goodybags, EU roaming included

How to Get a 30-Day SIM (Physical or eSIM)

Here’s how easy it is to activate your SIM:

  1. Choose your deal on Olimit.co.uk.
  2. Opt for an eSIM (delivered instantly via email) or have a physical SIM posted to you. Look for Esim Available in your results.  
  3. Activate and insert the SIM — or scan your eSIM QR code.
  4. Start using mobile data, minutes, and texts with no commitments.

Why Compare with Olimit for 30-Day SIMs?

  • ✅ No long contracts — all plans are monthly or cancel anytime
  • ✅ Instant eSIM delivery available for most networks
  • ✅ Handpicked UK mobile deals that suit travellers, students & remote workers
  • ✅ Many SIMs support roaming in the EU and select international destinations
  • ✅ Fast support if you run into any issues

FAQs About 30-Day SIM-Only Plans

Do I need a UK address to get one?

No! Many providers like Lebara, Voxi, and Lyca allow you to buy with an international card and no UK address.

Can I keep the same SIM next month?

Yes. 30-day SIMs can be topped up or automatically renewed monthly. If you’re staying longer, just keep topping up.

Is there a credit check?

No credit check is required for prepaid or pay-as-you-go 30-day plans. Great for international users.

Can I use the SIM across Europe?

Yes — many UK providers include EU roaming and beyond. Look for EU roaming details on the plan, or this icon: Roaming Destinations.

Which phones are compatible?

All unlocked phones will work with UK SIMs. If your phone supports eSIM (iPhone XS or newer, Samsung Galaxy S20 or later), you can skip the plastic SIM entirely.

Ready to Choose Your 30-Day SIM?

Browse and compare SIM-only deals here — and get connected instantly with eSIM, or receive a SIM card to your UK address.

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