Best Three SIM Cards of 2025
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Three SIM Cards are a telecommunications product that allows users to access mobile network services on their phones or other compatible devices. These SIM cards are offered by the UK-based mobile network operator Three, which has over 10 million customers in the country. Three SIM cards come in different sizes to fit different devices and offer a range of data plans and packages to suit various needs and budgets. With Three SIM cards, users can make calls, send texts, and access the internet on the go, making them a convenient and essential product for modern-day communication.
At a Glance: Our Top Picks
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Top 8 Three SIM Cards
Three Mobile Pay As You Go 24GB SIM
The Three Mobile 24GB SIM offers excellent value with 24GB of pre-loaded data that lasts for up to 24 months, perfect for users who want flexibility. You can enjoy access to the 5G network at no extra cost, enhancing your browsing and streaming experience. Additionally, you can use data in 71 destinations, with up to 12GB available while travelling. This SIM card fits any unlocked 3G, 4G, and 5G device, ensuring compatibility with your technology.
Three 500GB 5G Data SIM - Monthly Renewal
The Scancom 500GB 5G Data SIM offers an impressive 500GB of preloaded data that renews monthly until 8th October 2025, making it an ideal choice for your connectivity needs. You can enjoy effortless plug and play functionality, allowing you to connect seamlessly to 4G and 5G networks without any initial setup. With access to the UK's fastest 5G network, you’ll be able to stream, play, and work with exceptional speed and reliability. This SIM is universally compatible with a wide range of devices, ensuring you stay connected wherever you are.
Three Mobile PAYG SIM Pack with 10GB Data
The Three PAYG SIM Pack offers a convenient solution for those needing mobile connectivity. With 10GB of pre-loaded data, you can browse the internet, stream videos, and download apps without worrying about running out of data. Enjoy unlimited minutes and texts, allowing you to stay in touch with friends and family without additional costs. This SIM also provides access to the 5G network at no extra charge, ensuring you can benefit from faster speeds when available. Plus, you can use this SIM in 71 destinations, making it perfect for those who travel frequently.
Three 25GB Data SIM - 5G Monthly Plan
The Scancom 25GB 5G SIM offers a convenient solution for your data needs with 25GB of preloaded data each month until 8th February 2027. You can enjoy effortless plug and play connectivity, allowing you to connect to 4G and 5G networks without any setup hassle. With access to the UK's fastest 5G network, you can stream, play, and work seamlessly. This SIM is universally compatible with various devices, ensuring that you can use it with smartphones, tablets, and more, making it an ideal choice for diverse usage.
Three 80GB Data SIM with Monthly Renewal
The Three 80GB Data SIM offers you a hassle-free way to stay connected with 80GB of data renewed every month until 8th August 2025. With effortless plug and play, you can enjoy seamless 4G and 5G connectivity without any setup. This ensures you can stream, play, watch, and work without interruption. The SIM is compatible with a wide range of devices, from smartphones to IoT gadgets, providing flexibility for your connectivity needs.
Three Mobile Pay As You Go SIM with 12GB Data
The Three Mobile Data SIM comes pre-loaded with 12GB of data, which is valid for up to 12 months. This means you can browse, stream, and stay connected without worrying about running out of data. Enjoy access to Three's 5G network at no extra cost, allowing for faster internet speeds. Additionally, you can use your data in 71 destinations, making it an excellent choice for travellers. The SIM is compatible with any unlocked device, offering flexibility and convenience for your connectivity needs.
Three Mobile 50GB Pay As You Go SIM
The Three Mobile Pay As You Go SIM comes pre-loaded with 50GB of data, ensuring you have plenty of internet access for your everyday needs. You also enjoy unlimited minutes and texts, allowing you to stay connected with friends and family without worrying about extra charges. When travelling, the Go Roam feature lets you use your allowance in over 70 destinations, providing up to 12GB of data abroad. Plus, this SIM fits any unlocked 3G, 4G, and 5G phone, making it a versatile choice for various devices.
Wave Connect UK Quad Network Data SIM 12GB
The Wave Connect Data SIM offers a convenient 3-in-1 SIM card that works across all major UK networks, allowing you to use your data immediately upon insertion. You can register online to monitor your data usage and easily top up whenever necessary. This data-only SIM is ideal for various devices, including CCTV and solar energy monitoring systems, providing you with hassle-free connectivity. Additionally, you can set alerts for your data allowance to stay informed and ensure you never run out of data unexpectedly.
Frequently Asked Questions (FAQs)
1. What are the 3 types of SIM cards?
There are three basic sizes of SIM card: the standard, the micro, and the nano. Of the three, the Standard is the original SIM and the largest. Today, these are mainly used on older phones. The Micro SIM card is essentially a standard SIM card with the extra plastic around the circuit board trimmed off.
2. Can a 3 SIM be used in any phone?
You can use a Three SIM in any unlocked 4G or 5G phone, tablet or dongle. We offer 1 month rolling, 12 month and 24 month contracts for phones and Mobile Broadband devices. You can get Pay Monthly and Pay As You Go SIMs.
3. Can you get a new SIM card for free?
If your mobile provider has a physical store, picking up a SIM card is usually handled for free. In-person transactions at a corporate store are often the most secure, so this option is generally the fastest way to get your new SIM card replaced.
4. Can I pick up a free SIM card in store?
These can be ordered for free here or you can pick one up in store for 50p. Once you have your SIM card, insert it into your phone and activate by registering or logging into My Account. Alternatively, call us on 2732 from your Asda mobile phone (free from UK).
During our three sim card research, we found 101 three sim card products and shortlisted 8 quality products. We collected and analyzed 36,621 customer reviews through our big data system to write the three sim cards list. We found that most customers choose three sim cards with an average price of £13.36.
The three sim cards are available for purchase. We have researched hundreds of brands and picked the top brands of three sim cards, including 3, Scancom, Three Mobile, Wave Connect. The seller of top 1 product has received honest feedback from 353 consumers with an average rating of 4.8.
Harvey Wall was born and raised in Norwich. He mastered the art of tool production and finished at the prestigious Norwich University. His area of interest include cutting tools, abrasive finishing and power tools. Harvey is always looking for ways to improve the finesse of industrial tools via his myriads of researches. He also shares some of his experiences on many platforms while writing on tool products.