Six providers ranked on coverage, real speeds, and whether "unlimited" actually stays unlimited.
Five things that matter more than the marketing copy.
We may earn a commission if you sign up through links on this page, at no extra cost to you. Rankings are based on our read of coverage, speed, fair-use policies, and real traveller reports, not commission rates. If you think we got a ranking wrong, let us know.
The default pick. 200+ countries listed, regional plans like Eurolink and Asialink, and the app most travellers have already used at some point. If you want one eSIM brand to lean on across every trip, this is it.
Not perfect: activation can stall if your phone has too many eSIM profiles, and the auto network selection sometimes sticks to a weak carrier. Reddit has a long tail of 'worked everywhere except this one country' stories. Still, nothing else matches its range.
Popular with US travellers going to Europe. Every plan is marketed as unlimited, which is useful if you don't want to count GB. Customer support responds quickly, usually by WhatsApp, and network choice on arrival is usually reliable.
The catch is real but variable. Fair-use throttling often kicks in around 3-5 GB per day based on user reports, though the exact threshold varies by country and partner network and isn't loudly disclosed. Pricing runs 25-40% above Airalo for comparable coverage. Good for sightseeing holidays, weaker for remote workers.
Built for long-stay travellers, with 30-day and 60-day plans as the default in most countries, plus Global-EX plans that run up to 365 days. Pricing per GB gets better the longer you stay, which reverses how most eSIM providers work.
Slightly more expensive than Airalo for short trips, so only a real winner once you cross the 2-3 week mark.
NordVPN's eSIM brand. Pricing undercuts Airalo in most markets, and the app includes ad and tracker blocking (which provides minor data savings at best, not a meaningful cut). Solid pick for budget travellers going to well-covered regions.
Coverage is slightly narrower than Airalo in remote regions. No carrier redundancy in some countries, so if the one partner network is weak where you're headed, this isn't the right SIM.
Quietly one of the best-rated eSIMs by users who actually tried it. Trustpilot rating ahead of Airalo despite a fraction of the marketing spend. Sometimes surfaced during Apple device setup on iPads and Watch, and preloaded as the data connection on certain car infotainment systems (BMW, Mercedes).
The app is barebones and support can lag at peak times, but the core product (data that works reliably) is solid. Cheaper than Airalo in many regions, particularly for 15-day capped plans.
The only provider in this set with serious maritime coverage. Broad cruise and ferry coverage via partner maritime networks, plus remote territories most other eSIMs skip. Also notable for tight Apple integration, including Watch eSIMs that actually work abroad.
More expensive than Airalo on land. Overkill unless your trip specifically includes a ship, a ferry, or somewhere genuinely remote. Offers a free 100 MB trial which is a rare and honest starting point.
"Unlimited" almost always means throttled. Most providers slow speeds sharply after a daily or total GB threshold that's often buried in the T&Cs. If you're a heavy data user, assume you'll hit the cap and pick for what happens after, not the marketing headline.
We looked at the eSIMs that keep coming up in Reddit threads, nomad forums, and traveller reviews. Then we cut the marketing and focused on what actually matters: whether the data holds up at real speeds, whether top-ups work, whether hotspot is allowed, and whether support replies when something breaks on day two of your trip.
Most travel eSIMs are data-only: no phone number, no SMS. Your home SIM stays in your phone to receive calls and 2FA texts, and the travel eSIM runs alongside it for data. That setup works on any iPhone from the XS onwards, any Pixel 3 or newer, and most flagship Android phones from 2020 on. Older or carrier-locked handsets often can't use eSIMs at all.
Two things marketing rarely mentions. First, coverage and usable service aren't the same thing: 200-country lists include microstates and territories with weak or no real data. What matters is which local carrier your eSIM routes through in the country you're actually going to. Second, even on full signal an eSIM can feel slow because traffic is sometimes routed through the provider's home region before reaching its destination, which adds latency and hurts video calls, banking apps, and anything real-time.
And the honest baseline: in a lot of countries, a physical local SIM bought at the airport or a 7-Eleven still beats every eSIM here on price per GB and raw speed. eSIMs earn their keep for convenience, multi-country trips, and anywhere you want your home number live alongside local data, not always on price.
If you want one eSIM for most trips, Airalo is the safe default (not always the cheapest, not always the fastest, but consistent). For short trips where you'll stream a lot, Holafly's unlimited beats counting GB, with throttling to plan around. For anything over 30 days, Nomad. For budget travel, Saily. The rest depends on where you're going.
Eurolink covers the Schengen zone plus the UK and others on a single plan, which saves installing a new profile at each border. Holafly is the alternative if you want unlimited for a heavy-data 1-2 week trip and don't mind paying more.
Under $6 for a 2-week Thailand plan, Saily is consistently cheapest without feeling like a downgrade. Ubigi is a close second, particularly on 15-day capped plans. Avoid bottom-tier no-name eSIMs: they usually lock to one weak network and don't let you top up.
Nomad's per-GB pricing improves on 30, 60, and 90-day plans, reversing how most providers charge. Global-EX plans cover multi-country long trips on a single eSIM. Airalo's regional plans are a reasonable alternative if you're staying in one region for months.
Not as often as the marketing suggests. If you're an EU resident travelling inside the EU, your home mobile plan already includes roaming at domestic rates. On EE, O2, Vodafone UK, or a decent postpaid plan on T-Mobile US, Verizon, or AT&T, some roaming is probably baked in. Check your plan before assuming you need an eSIM.
Where eSIMs earn their keep: US travellers going abroad (carrier day-passes run $10-15 daily and add up fast), long trips where $30/month for local data beats any carrier roaming bolt-on, countries where your home carrier has no partner, multi-country trips, and data-only setups where you want to keep your home number live on iMessage and 2FA while using cheap local data.
When a local SIM still beats every eSIM here: single-country trips of a week or more in places with airport SIM counters (Thailand, Vietnam, Indonesia, most of Eastern Europe, parts of Latin America). Local SIMs often cost half of what a travel eSIM charges per GB, and come on the host country's own top-priority network rather than a partner roaming agreement. The trade-off is a new number and five minutes at arrivals.
When you don't need an eSIM at all: short hops inside your home region if your plan already roams, countries where wifi is ubiquitous and you're fine being offline between cafes, or trips short enough that even cheap local data isn't worth the setup.
Most phones bought in the last five years do. iPhone XS and later (but not the iPhone XR in some regions), Pixel 3 and later, and most flagship Android phones released since 2020 support eSIM. US iPhones from the 14 onwards are eSIM-only and don't have a physical SIM slot at all.
Budget Androids and older or regionally locked handsets often don't. If your phone is older than 2020 or came from a carrier subsidy that locks the SIM, check in Settings before you buy a plan. On iPhone, go to Settings, Cellular, Add eSIM to test. On Android, Settings, Network & Internet, SIMs, Add eSIM.
Yes, and this is the best setup for most travellers. Leave your home SIM in your phone (either physical or as an eSIM) and add the travel eSIM as a second line. Use the travel eSIM for data and keep the home SIM on standby for iMessage, SMS 2FA codes, and the very occasional call.
On iPhone this shows up as two lines in Settings, Cellular. You can tell it to use the travel eSIM for data only and keep the home line default for calls and messages. Android is similar under Settings, SIMs. Watch out for 2FA services that text to your home number: roaming reception of SMS is usually free on your home plan, but outgoing SMS often costs.
Almost never. Every major provider with an unlimited tier has a fair-use policy (FUP) that throttles speeds after a daily or total threshold. The exact number varies by country and partner network, but user reports put Holafly's throttle somewhere in the 3-5 GB/day range across most markets. Where other providers list "unlimited" plans, a daily speed cap applies there too. The policies are usually buried in the T&Cs rather than shown on the plan page.
What 'throttled' means in practice: fast enough for messaging and light browsing (around 1 Mbps), too slow for video or video calls. If you need consistent high speeds for work, buy a generous capped plan instead. You'll usually get more usable full-speed data than an unlimited plan with a daily ceiling.
Usually yes, but with caveats. Most travel eSIMs allow hotspot on standard capped plans. On unlimited plans, hotspot data is often capped lower than your on-device usage, or throttled more aggressively. Holafly in particular is known for trimming hotspot speeds before the main connection slows down.
If you'll rely on a laptop over a travel eSIM, check the hotspot policy on the provider's page before buying. Saily, Airalo, Nomad and Ubigi all allow reasonable hotspot on most plans. Holafly's terms are more restrictive.
Some eSIMs look unbeatable on price until you read the small print. Worth checking a few things before you hand over card details.
eSIMs are much easier to sort at home with wifi than at an airport at midnight. Install the profile before you leave, then activate it on arrival.