eSIM vs physical SIM for travel.
An honest comparison — including the one case where plastic still wins.
TRAVEL eSIM
HOME-CARRIER ROAMING
AIRPORT SIM
POCKET WIFI
How you get it
Email, before you fly
Already on your phone
Airport kiosk queue
Rented — collect, carry, return
Setup time
~2 minutes, one QR
None
Queue + paperwork + swap
Collect, charge, pair every device
Typical daily cost
£2–£3, unlimited
£12+ or surprise bill
Low, but capped + haggling
Daily rental + deposit add up
Keep home number active
Yes — both SIMs live
Yes
No — home SIM in your bag
Yes — your SIM stays put
Bill-shock risk
None — prepaid
High
None
Low — late-return fees only
Can be lost / damaged
No — it's software
No
Easily (and often)
Yes — and it's a rental
Extra device to carry & charge
No
No
No
Yes — nightly charging
Works on older phones
2018+ models only
Yes
Yes — any phone
Yes — shares to any device
The honest verdict: if your phone is from 2018 or later, eSIM wins on every travel measure except one — a physical local SIM is still the right call for older phones without eSIM support, or if you need a local phone number for calls. Pocket WiFi earns its bag space only when a big group of mixed, older devices needs to share one connection all day. For everyone else, the queue at the airport kiosk is now optional.
Choose eSIM if…
✓ Your phone is from 2018 or newer
✓ You want data working on arrival
✓ You keep WhatsApp on your home number
✓ You'd rather not queue on holiday
Get a travel eSIM →✓ You want data working on arrival
✓ You keep WhatsApp on your home number
✓ You'd rather not queue on holiday
Stick with plastic if…
· Your phone predates eSIM (check in 30 seconds)
· You need a local number for local calls
· You're staying months and want a resident plan
Check my phone →· You need a local number for local calls
· You're staying months and want a resident plan