eSIM UK: data plans compared (October 2026)

eSIM for the UK by trip length and data needs

One week, at least 5 GB

For one week with at least 5 GB in the UK, the cheapest checked plan is “5 GB, 21 days” from Roamic: 5 GB for 21 days costs €3.99 (US$4.49), which is €0.80 (US$0.90) per GB and €0.19 (US$0.21) per day. As of 19 October 2026.

Two weeks, at least 10 GB

For two weeks with at least 10 GB in the UK, the cheapest checked plan is “10 GB, 30 days” from Roamic: 10 GB for 30 days costs €5.99 (US$6.74), which is €0.60 (US$0.67) per GB and €0.20 (US$0.22) per day. As of 19 October 2026.

One month, at least 20 GB

For one month with at least 20 GB in the UK, the cheapest checked plan is “20 GB, 30 days” from Roamic: 20 GB for 30 days costs €9.99 (US$11.24), which is €0.50 (US$0.56) per GB and €0.33 (US$0.37) per day. As of 19 October 2026.

One week unlimited

For one week with unlimited data in the UK, the cheapest checked plan is “Unlimited, 7 days” from Roamic: unlimited data for 7 days costs €12.99 (US$14.62), which is €1.86 (US$2.09) per day. As of 19 October 2026.

eSIM for the UK: networks, price range and activation

Networks in the UK

Roamic uses O2 and EE in the UK. Ubigi uses EE and Three in the UK. Airalo uses EE in the UK. Simbye uses EE, Vodafone and O2 in the UK. Yesim uses EE UK, Hutchison 3, Orange and Vodafone in the UK. Holafly uses Orange UK, T-Mobile UK, H3G UK, VirginMediaO2 UK and Vodafone UK in the UK. As of 19 October 2026.

Price range per GB in the UK

Per GB, the 33 plans with fixed data for the UK cost between €0.50 (US$0.56) and €4.00 (US$4.50); the median is €1.32 (US$1.49) per GB, and the most expensive GB costs 8 times the cheapest. The cheapest GB per provider: Roamic €0.50 (US$0.56) per GB, Ubigi €0.64 (US$0.72) per GB, Airalo €0.72 (US$0.81) per GB, Simbye €0.78 (US$0.88) per GB and Yesim €0.93 (US$1.05) per GB. As of 19 October 2026.

Unlimited data in the UK

The cheapest plan with unlimited data for the UK is “Unlimited, 29 days” from Roamic: €29.99 (US$33.75) for 29 days, which is €1.03 (US$1.16) per day. The condition according to Roamic: 3 GB at full speed per day, then 1 Mbit/s. Unlimited plans for the UK are offered by Roamic, Ubigi, Simbye, Yesim, Airalo and Holafly. As of 19 October 2026.

Activation: when does the validity of an eSIM for the UK start?

With all 6 providers, the validity starts with the first connection in the UK. The 30 days of “20 GB, 30 days” therefore only count from activation in the UK, even if the eSIM is installed at home. As of 23 September 2026.

Providers compared for the UK

For the UK, meineSIM compares plans from Roamic, Ubigi, Airalo, Simbye, Yesim and Holafly. Saily is not part of the comparison.