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Travel eSIMs let you stay connected abroad without paying £6+/day in EE roaming or hunting for local SIMs. Here's how the major brands compare for UK travellers in 2026.
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📱 Top Pick: Saily eSIM
From the makers of NordVPN. 150+ countries, instant activation, no roaming charges.
Get Saily eSIM →Sento earns a referral if you click — never affects our recommendations.
Why eSIM Beats Roaming
- Cheaper — typically 70–90% less than UK network roaming
- No SIM swap — your UK number stays active for calls and SMS
- Instant activation in airports and hotels
Saily — Best Overall
From Nord Security. 150+ countries, transparent pricing, ad blocker bundled.
Airalo — Largest Catalogue
200+ countries. Slightly pricier on regional plans.
Holafly — Unlimited Plans
Best for heavy data users on single-country trips, but more expensive per GB.
Verdict
Saily for value, Airalo for niche destinations, Holafly for unlimited heavy use.
Where to Buy
Our recommended travel eSIM.
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Want more? Visit the Travel Hub
Flights, hotels, transfers, car hire & more — all compared in one place.
Sento earns a referral if you click through our links — this never affects our recommendations. Prices and details correct at time of publication. Updated May 2026.