The 30-second answer
Traveling alone with a recent phone: eSIM. Traveling as a family or group, or working from a laptop: pocket WiFi. Phone does not support eSIM: physical data SIM. Mixing scenarios, like a remote worker who also tours alone: eSIM for the phone plus pocket WiFi for the desk is a legitimate combo.
eSIM: fastest setup, one phone
Buy online, receive a QR code by email in minutes, scan it before you fly, and land in Lisbon already connected, with your home SIM still in place for calls and banking SMS. From EUR 9. The catches: your phone must be unlocked and eSIM-compatible, and the data serves that one phone (hotspotting from it drains the battery fast).
Pocket WiFi: one connection, the whole group online
A palm-sized hotspot with truly unlimited data that connects up to 10 phones, tablets and laptops at once, from EUR 18. Nothing changes inside any phone in the group, which makes it the zero-configuration option for families, and the serious option for laptop work. The catches: it is one more device to charge overnight and carry, and it needs delivery or pickup and a return at the end.
Physical SIM: the compatibility fallback
A data SIM card with the same unlimited Vodafone data, from EUR 15, posted to you before the trip. It works in any unlocked phone, including older ones without eSIM support. The catches: your home SIM comes out of single-SIM phones (keep it safe), and delivery needs a few days of lead time, so it rewards planners.
What 15,000 travelers actually chose
From our 2023-2025 order data: 70.7% pocket WiFi, 20.8% eSIM, 8.6% physical SIM. The pocket WiFi majority tracks trip shape, since the average rental runs 21 days and longer stays mean more devices, more laptop time and more people sharing. Short city breaks skew heavily to eSIM. Full numbers are on the statistics page.
Can you combine them?
Yes, and frequent remote workers often do: an eSIM keeps the phone independently connected for calls and navigation, while a pocket WiFi carries the laptop, the tablet and the other phones. Both run on the same unlimited network, so the combo is about redundancy and battery, not coverage.