The best eSIMs of 2026 for travel data that just works
We tested 10 eSIM providers on real trips across Europe, Asia, and North America — measuring activation time, speed, and what happens when your flight lands at 2 AM and you need Uber.
TL;DR
Airalo is the best default — widest country coverage and the app is the least likely to break.
Saily (owned by Nord) is the best value if your destination is on their list.
Avoid 'unlimited' eSIMs that throttle to 256 kbps after 2 GB — read the fair-use fine print.
Best overall:airalo
How we tested
We bought eSIMs for the same 8 destinations (US, UK, DE, FR, ES, JP, TH, MX) from each provider and activated them on two iPhones and one Pixel, then ran Ookla speed tests hourly for 48 hours per country.
Coverage breadth25%
How many countries the provider offers direct data for.
Real-world speed25%
Median download from hourly Ookla runs over 48 hours per destination.
Activation friction20%
Time from purchase to first data packet — manual QR scans vs. one-tap.
Price per GB15%
Effective price after any fair-use throttle kicks in.
Top-up experience10%
Whether you can renew without re-scanning a new QR.
Support responsiveness5%
Median response time on 3 support tickets per provider.
Testing window
2026-02-01 → 2026-03-20
Data sources
Ookla Speedtest CLI
Real trips with staff cards
Vendor-published network maps
Written by
Subger Editorial
Independent review desk
We buy every eSIM we test with our own cards. No provider gets warned before we run the tests.
Fact-checked by
Subger Fact-Check
Secondary review
Last tested
2026. 3. 20.
Next review 2026. 6. 20.
Our take on each product
airalo
Recommended
The Swiss Army knife of travel eSIMs — not the cheapest, but the most likely to work the moment your plane lands.
Pros
+200+ countries
+In-app installation is genuinely one-tap on iOS 17+
+Regional bundles for Europe, Asia, and LATAM
Cons
−Not the cheapest per GB
−Support replies are slow on weekends
Best for:Anyone whose trip crosses 2+ countries in one week
saily
Recommended
Owned by Nord Security. Newer, cheaper, and the app is the best we've used.
Pros
+Cheapest per GB on their supported countries
+App UX is ahead of the rest of the field
+Auto-top-up without re-installation
Cons
−Country list is shorter than Airalo
−Some destinations have capped LTE only
Best for:Short trips to major destinations on a budget
holafly
Niche pick
The 'unlimited' plan is genuine for most users but the fair-use throttle is real and not clearly disclosed.
Pros
+Truly unlimited for most trips
+Good Spain/LATAM coverage
Cons
−No tethering on most plans
−Fair-use throttle kicks in around 500 MB/day for some destinations
Best for:Heavy users on single-country trips where tethering doesn't matter
ubigi
Niche pick
Transatel-backed, solid for business travel, but the consumer app lags the specialists.
Pros
+Carrier relationships mean excellent coverage
+Business account features
Cons
−Consumer app is clunky
−No regional bundles
Best for:Business travelers whose employer pays the bill
Recent updates
Added Saily to the test set after 6 months in production
Enough tenure now to include in the main table. Slots in as #2 overall behind Airalo.
Holafly updated its fair-use language
Daily throttle now disclosed at checkout for most plans — credit where it's due, though the old buyers weren't notified.
The full comparison
Service
Countries with direct data, not regional roaming fallback.
Calculated from the plan most travelers buy (5 GB / 7 days). Longer plans are usually cheaper per GB.
Median download across 48 hours of hourly Ookla tests in each destination.
One-tap (iOS 17+) or QR scan
In-app top-upRenew without re-scanning a new QR
TetheringAllowed on the base plan
Airalo
200
4.5
48
One-tap
Yes
Yes
Saily
150
3.2
52
One-tap
Yes
Yes
Holafly
170
6.9
42
QR scan
No
No
Ubigi
190
5.1
45
QR scan
Yes
Yes
Nomad
165
4.1
46
One-tap
Yes
Yes
Speeds are median across hourly tests over 48 hours per destination. Price/GB is calculated from the most commonly purchased 5 GB or 7-day plan.
Frequently asked questions
Will an eSIM work on my phone?▾
Any iPhone XS or later, and most Android flagships from 2020 onwards. Check 'Settings → Cellular → Add eSIM' on iOS or 'SIMs' on Pixel. If the menu exists, you're good.
Do I need to unlock my phone?▾
For eSIMs, no — you're adding a new line, not replacing the existing one. Even if your primary SIM is locked to a carrier, you can add an eSIM on top.
Can I call and text, or is it data only?▾
Most travel eSIMs are data-only. You can still make calls and send messages via WhatsApp, iMessage, or any other data-based app. If you need a real phone number, Airalo and Ubigi sell voice-enabled plans on some destinations.
What if I run out of data mid-trip?▾
Most providers let you top up in-app — we note which ones require a full re-install in the table.