About Three
Three is one of the UK's major mobile network operators, known for offering generous data allowances and competitive pay-as-you-go options. Owned by CK Hutchison, Three has built its reputation on being data-focused, making it particularly popular with heavy smartphone users. Their pay-as-you-go SIM cards sold in supermarkets offer convenient, commitment-free mobile access. The range includes various credit amounts with bundled data allowances - from the £10 10GB option for light users to the £15 30GB bundle for those who need more connectivity. These preloaded SIMs are perfect for new phones, travelling visitors, or anyone wanting flexibility. The Three Trio SIM is designed for universal compatibility, featuring all three SIM sizes (standard, micro, and nano) in one card that you simply pop out to fit your device. The International Trio SIM variant offers the same flexibility with international calling benefits. Three's network covers over 99% of the UK population and offers 4G and 5G connectivity where available. Their pay-as-you-go plans include EU roaming at no extra cost (subject to fair use), making Three SIMs useful for short trips abroad. Available at Asda and other UK supermarkets, Three SIM cards can be purchased without identification and activated instantly. Use Grocefully to compare Three SIM prices and find the best data deals for your mobile needs.

