Three UK Launches Free Unlimited eSIM Trial at Major Summer Festivals
Vodafone UK recently made headlines with its free Glastonbury eSIM trial—and now, Three UK is raising the bar with the nation’s most ambitious unlimited eSIM offer, giving festival-goers 7 days of free data, calls, and texts at some of the UK’s biggest music events. Three free eSIM trial
From 14 June, starting at Rockstar presents Parklife Festival, music fans can try the UK’s Fastest 5G Network** for free, with unlimited UK data, calls, and texts for 7 days, and experience the life of a Three customer as they enjoy the festival experience. The trial will be rolled out across the country to other festivals, sponsored by Three.
To mark the launch of the eSIM trial, Three has put a new twist on an iconic British festival staple—the bucket hat. Crafted from 500 recycled ‘traditional’ SIM cards—no longer needed when using eSIM technology.
Fans who have tickets to any of the six festivals, including Rockstar presents Parklife, Rockstar presents Wireless, Rockstar presents TRNSMT, Klarna presents Latitude, Rockstar presents Reading & Leeds and Audi presents Wilderness, will be invited to pre-register for the eSIM trial to enjoy all the network benefits at the festival, and also relish all the perks and rewards on Three+, including big deals on brands such as Moonpig, Cineworld, plus £1 barista-made drinks every week from local cafés and shops, and Caffè Nero. As well as early access to music gigs and comedy events, so people across the country can feel the ‘Glow’ of being a Three customer.
When on site at the festivals, eSIM customers can party like a Three customer too and get exclusive access to the Three platform for the best viewing experience at the festivals and discover all the on-site offers, including free phone charging. All they need to try the network for free is an eSIM-compatible smartphone—no need to change their number.
Andrew Foy, Director of New Products and Propositions at Three UK, says:
“We power some of the UK’s most iconic festivals with our 5G Network and we know how important it is to stay in touch with your friends and loved ones this summer. Helping keep music fans connected with this trial will also give people the chance to experience first-hand the glow of being a Three customer and our network.”
This news follows on from the UK’s first large-scale eSIM trial, as Three Business offered organisations based in Birmingham and Bristol to trial Three’s network before committing to switching providers.
Three UK’s 7-day only network trial includes unlimited data and texts in the UK only, minutes to standard mobiles & landlines in the UK, starting from when the customer activates the eSIM. The trial excludes roaming and calls to premium rate numbers. One trial per customer. Until supplies last. Full T&Cs apply.
*The nation’s most ambitious unlimited eSIM trial claim:
| Three UK is the first mobile network operator to offer unlimited UK data, calls and minutes to non-Three mobile customers for 7 days for free across the country to try the UK’s Fastest 5G Network* | ||||||
| Company | Three UK | Vodafone | Three UK | Vodafone | Vodafone | |
| Market | UK (Reading, Leeds, Suffolk, Manchester, London, Oxfordshire, Glasgow) | UK – London, Belfast, Sheffield, Liverpool and Watford | UK – Birmingham and Bristol | UK – Cornwall | UK – Glastonbury | |
| Network provider | MNO – Consumers | MNO – Consumers | MNO – Businesses | MNO – Consumers | MNO – Consumers | |
| Length of trial | 7 days eSIM | 7 days eSIM | 30 days eSIM | 7 days eSIM | 7 days eSIM | |
| Data, calls and texts | Unlimited | 50GB data, 500 minutes, 500 texts | 5GB, no calls or texts | 50GB data, 500 minutes, 500 texts | 50GB data, 500 minutes, 500 texts | |
| Date of trial | 14 June – 14 August 2025 | London started 6 May 2025.Belfast, Sheffield, Liverpool and Watford 9 June 2025 | Started 29 April 2025 | 7-11 August 2024 | 26-30 June 2024 | |
**Source: Ookla 5G Speedtest Award Report.
