eSIMs Hub: Which to choose, how to set up, country-by-country verdicts
The travel eSIM market hits .75B in 2026 — projected to triple to .06B by 2035 (Mordor Intelligence), with 51% of users first trying the tech on an international trip (Juniper Research). We test on real trips across Airalo, Holafly, Saily, Nomad and Revolut: verified speed data, current promo codes, and country-by-country verdicts.
The eSIMs we actually buy
I racked up nearly $100 in data charges on my iPhone for a week in Paris, plus another $300 across a three-week multi-country trip before I finally caved and installed Airalo. The math is brutally simple: $11 for 5 GB on an eSIM versus whatever your carrier wants to charge you for the same data on roaming. We have not looked back.
After a year of switching between Airalo, Holafly, Saily and Nomad on different trips, the marketing finally cracked: each one wins at one thing, none of them wins at everything. Airalo for the long-tail country, Holafly when unlimited matters, Saily when privacy does, Nomad when the receipt does. Pick by trip, not by brand.
Editor’s quick picks
A handful of editor-chosen articles to start with — each tagged with why we picked it (new, unique, trending, local, or just one we like).
Browse all 25 countries
Europe (10)
Asia & Pacific (8)
Americas, Africa & Middle East (7)
Not-so-obvious picks
Two of our most-read editorial deep dives in this category.
Yes, you can try an eSIM free — three providers offer trial data
Most eSIMs are pay-up-front, but three providers offer enough free or trial data to test the experience before you commit to a real plan. Airalo gives $3 sign-up credit on first install (covers most 1-day Eurolink trials). Saily offers 100 MB free on first eSIM. Holafly runs occasional one-day-free promotions on its app. Combined, you can test setup, coverage in your country, and the app experience for under $5 before deciding which one to stick with. Our promo-code tracker keeps the current free-trial offers updated.
See current free trials → Before-you-fly checklistPre-flight eSIM checklist — five things to do before takeoff
The biggest eSIM problem is arriving in-country and discovering setup needs the internet you don't have yet. Solve it before takeoff. Verify your phone supports eSIM (most after 2021 do; check Airalo's compatibility checker). Confirm your phone is carrier-unlocked. Install the provider app and your eSIM profile on home Wi-Fi. Toggle the eSIM ON in airplane mode so it auto-connects on landing. Pre-load offline maps for your destination. Five minutes the night before saves the airport hour of frustration on arrival.
- Verify eSIM support on your phone (post-2021 iPhones + most Androids)
- Confirm phone is carrier-unlocked (mostly automatic after payments end)
- Install profile + provider app on home Wi-Fi before leaving
- Toggle eSIM ON in airplane mode — auto-connects on landing
- Pre-load Google Maps offline for your destination
eSIM price comparison (2026)
Indicative pricing across the major travel-eSIM providers. Costs shift by region, plan length, and current promos — check each provider link for live pricing on your route.
| Provider | Cheapest per-GB | EU 7-day | Unlimited? | Countries | Free trial | |
|---|---|---|---|---|---|---|
| Airalo | $1.50 | $4.50 (1 GB) | Some regions | 200+ | $3 referral credit | Get deal → |
| Holafly | n/a (unlimited) | $19 (unlimited 7d) | Yes — all plans | 170+ | Occasional 1-day promos | Get deal → |
| Saily | $1.39 | $3.99 (1 GB) | Yes (Ultra) | 150+ | 5% off promo code | Get deal → |
| Nomad | $0.36 (regional) | $3.50 (1 GB) | No | 170+ | $3 sign-up credit | Get deal → |
| Revolut | Included free | Free (Metal tier) | No | 30+ | Free on Premium+ | Get deal → |
Prices in USD, indicative of standard published rates. The cheapest per-GB column shows regional/bundle pricing; single-country plans cost more. Free trials are usually time-limited or capped.
eSIMs with free trials and credits
You can test the install experience and your country's coverage for under $5. Combined, these promos cover most short-trip testing.
Airalo
$3 referral creditSign-up credit covers a 1-day country plan in most of Europe and Asia. Use to test setup and app experience before a real trip.
Try it →Saily
5% promo + free trialLocals Insider readers get 5% off site-wide with code GIZMODO. Saily also offers occasional first-eSIM 100 MB free trial.
Try it →Nomad
$3 sign-up creditCredit applied to first plan — covers a 1-day or small regional bundle for testing.
Try it →Holafly
Occasional 24h trialHolafly periodically runs a free 24-hour trial of an unlimited plan in selected countries. Check current promos in the deals tracker.
Try it →Revolut
Free on Premium+Premium and Metal subscribers get free monthly eSIM data in 30+ countries — marginal cost zero if you're already paying for the bank account.
Try it →Questions readers ask us
Do I really need an eSIM when traveling abroad?
Yes — international roaming on your home carrier almost always costs more than buying an eSIM. Our team racked up $100 in data charges on a week-long Paris trip before switching to an eSIM that cost $11 for 5 GB. The math is simple: a travel eSIM is 5-20x cheaper than carrier roaming for the same data. The only reason not to use one is if your phone doesn't support eSIM (most phones from 2021 onwards do) or if you're traveling somewhere your home carrier offers free roaming (some EU-wide plans).
Which eSIM is cheapest for Europe?
For multi-country European trips, Nomad consistently wins on regional 5 GB and 10 GB plans — slightly undercutting Airalo Eurolink. If you're only going to one country (say, two weeks in Italy), check the single-country plans from all four major providers — pricing differences shift by destination. Airalo's Eurolink covers 42 of 44 European countries; Nomad regional EU is similar coverage. For unlimited data on short trips (sub-3 days), Holafly at $3.90/day wins on per-day cost despite a 3-5 GB Fair Use cap.
How much data do I really need for a 1-week trip?
For most travelers: 3-5 GB is plenty for a week of normal use (maps, messaging, social, occasional video). If you stream a lot or tether your laptop, double it to 10 GB. If you use video calls, navigation continuously, or upload photos in real time, plan for 15-20 GB. Our 2026 testing across providers averaged: 1.2 GB/day on heavy travel days (lots of maps, photo uploads, occasional streaming), 400-600 MB/day on light days. Pre-load offline maps and photo backups before you fly to keep usage down.
Will my phone work with an eSIM?
Almost certainly, if it's newer than 2021. Every iPhone XS or later supports eSIM; iPhone 14 and later in the US are eSIM-only. Most Samsung Galaxy S20+ and later, Google Pixel 3 and later, and recent Sony, Motorola and Oppo phones support eSIM. Two requirements: (1) your phone must be unlocked from your carrier — usually automatic once paid off, and (2) you need an internet connection at install time (any Wi-Fi works — do it before the flight). Airalo and most providers have a phone compatibility checker on their site.
Can I keep my regular phone number while using a travel eSIM?
Yes — that's the whole advantage. eSIM-capable phones support dual SIM, so your physical SIM (or home eSIM) handles calls and SMS to your normal number, while the travel eSIM handles data. WhatsApp, iMessage, work email — all keep working on your home number. The typical setup: leave your home SIM on for calls but turn off data roaming on it, then set the travel eSIM as the default for cellular data. Friends still reach you on your normal number; you pay travel-eSIM rates for browsing.
Which eSIM should you buy?
Five quick questions about your trip — we'll match you to the provider that fits.
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