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Most modern phones support eSIM, but is it always better than a physical SIM card abroad? Here's the practical breakdown 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.
eSIM Pros
- Activate before you leave home
- Keep your UK number active simultaneously
- No physical SIM to lose
- Instant top-ups in the app
Physical SIM Pros
- Works on older phones that lack eSIM
- Sometimes cheaper for very long stays
- Local number useful for some bookings
When eSIM Wins
Short trips, multi-country travel, you want to keep your UK number live for SMS codes — eSIM every time. Saily activates in 5 minutes.
Verdict
For 95% of UK trips in 2026, eSIM is the right answer. Use Saily.
Where to Buy
Our recommended travel eSIM.
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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.