Travel eSIMs have hit the stage most categories reach eventually: the leaders are all competent, coverage stopped being a differentiator, and the right pick depends entirely on the shape of your trip.
Airalo, Nomad and Saily all reach around 200 countries. Choose on the map alone and you''re choosing on the one thing that no longer separates them.
Airalo — the widest net
Airalo covers more destinations than any other major travel eSIM, and it''s the only one here offering voice and SMS, through its Discover+ plans. If you need an actual working phone number rather than data alone, the field narrows to one.
The catch sits in the fine print on unlimited plans, where throttling starts around 3 GB. "Unlimited" means unlimited at reduced speed past a threshold you''ll blow through in one evening of hotel video calls.
Best for: multi-country trips through less common destinations, and anyone who needs voice or SMS.
Saily — the value pick
Saily is usually cheapest on small plans and on per-gigabyte pricing at long-tail destinations. Multi-country use is easier to manage, and support answers faster than the category norm — which matters more than it sounds, since eSIM problems are always urgent and always arrive right after you land.
Its metered plans have effectively no daily cap, so you''re not wrestling a throttle halfway through the week.
Best for: budget travellers, multi-country routes, anywhere the big providers price badly.
Nomad — the predictable one
Nomad is the one for structured European travel. Pricing is predictable, the app is among the best in the category, and its metered plans skip daily caps too.
Nomad and Saily both score 4.7 or better on app quality, which lines up with smoother onboarding and fewer setup headaches. Don''t dismiss that. A confusing activation screen at an airport with no connectivity is the worst failure this category produces.
Best for: planned trips around Western Europe where you want to install once and forget it exists.
Holafly — the short-stay specialist
Holafly earns its place on stays under three days, where genuinely unlimited data beats peak speed. On a 48-hour trip you aren''t optimising cost per gigabyte — you''re optimising not having to think about it.
Best for: quick city breaks and short business trips.
Choosing in about a minute
Three questions.
How long is the trip? Under three days, take unlimited and stop doing arithmetic. Longer, buy metered and check where the throttle sits.
How many countries? One, buy that country''s plan — regional bundles are usually worse value. Several, weigh Saily against Airalo on your specific route.
Do you need a phone number? If so, Airalo''s Discover+ is effectively your only choice among the majors.
The bit nobody mentions
Install and activate before you fly, while you still have solid Wi-Fi and the patience to read instructions. Every one of these works beautifully when set up calmly at home. Every one of them is miserable to configure in an arrivals hall on 4% battery.
And check your phone actually supports eSIM and is carrier-unlocked before you buy anything.
Image: Gustavo Fring, via Pexels
