HOLASIM vs Saily vs Ubigi (2026): Which Travel eSIM Should You Buy?

HOLASIM is the strongest pick for travellers who want genuinely unlimited data, uncapped hotspot and 24/7 human support in their own language, Saily is the better value for budget travellers who can live inside a fixed gigabyte bundle, and Ubigi is the choice for anyone who prioritises carrier-grade 5G and connecting laptops, tablets and cars rather than just a phone.

These three providers are often lumped together as "travel eSIMs", but they are built on different premises. HOLASIM sells duration: you buy days, not gigabytes. Saily sells gigabytes cheaply and wraps them in Nord Security's privacy tooling. Ubigi sells network quality, inherited from Transatel and the NTT Group, to people who care about 5G and multi-device support. Picking between them is mostly a question of which of those three premises matches your trip.

HOLASIM Overview

HOLASIM is an Argentine travel eSIM operator selling in English, Spanish and Brazilian Portuguese, with coverage across 200+ destinations. Its defining features are unlimited-data plans, a profile that never expires, and live human support around the clock in all three languages. Plans start at roughly USD 1.70 and activation is instant via QR.

Reasons to choose HOLASIM:

• Unlimited plans with no tethering cap, so a laptop can live on the hotspot for a whole trip
• The eSIM profile never expires: install once, recharge for every future trip, no profile clutter
• 24/7 support from real people in English, Spanish and Portuguese, not a chatbot queue
• 200+ destinations, including regional bundles for multi-country itineraries
• Day-granular plans (1, 3, 5, 7, 10, 15, 20, 25, 30 days) rather than coarse 7/15/30-day tiers

Reasons to avoid HOLASIM:

• Unlimited plans cost more than fixed-data bundles; light users genuinely overpay
• Smaller global brand recognition than Airalo or Saily, with a shorter public review history
• No bundled VPN or ad-blocking extras of the kind Saily includes

Saily Overview

Saily is Nord Security's travel eSIM, launched off the back of NordVPN. It covers 202 countries with more than 1,180 plans, about 370 of which are unlimited under a fair-use policy. Entry pricing is among the lowest in the category, starting near USD 1.99 for a 1 GB local plan, and its Trustpilot score of 4.7/5 across more than 31,000 reviews is the strongest of the three.

Reasons to choose Saily:

• Cheapest entry point of the three, with local plans from around USD 1.99
• Free ad blocking, web protection and virtual-location features built into the app
• Unlimited hotspot sharing permitted on data plans
• Excellent Trustpilot standing and a mature, well-reviewed app
• No ID verification required for standard plans; the eSIM is reinstallable across trips

Reasons to avoid Saily:

• "Unlimited" is fair-use capped: full speed for roughly 3-5 GB per day, then throttled to 1-2 Mbps
• Calls and SMS are not included by default; a US number is a paid add-on
• The eSIM is tied to the device it was installed on, which hurts if you change phones mid-trip
• Carrier partners are not published, so you cannot check which local network you will land on
• Refunds are not guaranteed once a plan is activated, and replies can take around five working days

Ubigi Overview

Ubigi is the consumer brand of Transatel, a Transatel/NTT Group company, which makes it the only one of these three backed by a tier-one telecom parent. That shows up in network quality, 5G availability, and unusually broad device support: Ubigi is natively supported in many connected cars and Windows laptops, not just phones. Trustpilot sits around 4.4/5.

Reasons to choose Ubigi:

• Carrier-grade relationships via Transatel and the NTT Group, with strong 5G where networks allow
• Native support in many connected cars, Windows laptops and iPads, not only smartphones
• Top up an existing profile without reinstalling anything
• Voice and SMS available on some plans, which most travel eSIMs do not offer at all
• Good per-GB value on larger bundles in mature markets

Reasons to avoid Ubigi:

• Mid-to-premium pricing; small bundles are not cheap, with entry plans around USD 3 for 500 MB
• Unlimited tiers exist only in selected markets, typically around USD 19-65 depending on country and duration
• Setup can need manual attention on older Android devices, including IPv4-only workarounds
• Support is email and app based, without the 24/7 live human staffing HOLASIM offers

Head-to-head: HOLASIM vs Saily vs Ubigi

	HOLASIM	Saily	Ubigi
Entry price	from ~USD 1.70	from ~USD 1.99	from ~USD 3 (500 MB)
Destinations	200+	202	190+
Unlimited data	Yes, uncapped	Yes, fair-use (3-5 GB/day then 1-2 Mbps)	Selected markets only
eSIM expiry	Never expires	Per plan; activate within 180 days	Per plan
Hotspot/tethering	Yes, uncapped	Yes, unlimited	Yes
5G	Where networks allow	Where networks allow	Strong, a core selling point
Support	24/7 live humans	App and email, ~5 working days for refunds	Email and app
Languages	EN / ES / PT	English-first	English-first, some EU languages
App	iOS and Android	iOS and Android, highly rated	iOS, Android, cars, Windows
Top-ups	Yes, recharge the same profile	Yes, manual in-app	Yes, without reinstalling

Coverage

On raw destination count the three are nearly tied: 200+, 202 and 190+ respectively. Count is not the useful metric, though, because the practical question is which local network you land on in the specific country you are visiting.

Ubigi has the clearest advantage here, because Transatel negotiates directly with carriers as a full MVNO rather than reselling aggregator inventory. In mature markets, that generally means you attach to a premium network with full LTE and 5G priority rather than a wholesale tier. Saily, by contrast, does not publish its carrier partners at all, which is a real transparency gap: you cannot verify in advance whether your plan uses the strongest network in a given country.

HOLASIM sits between the two, with broad regional bundles that are useful for multi-country trips. If your itinerary crosses several borders, all three sell regional products, but check the exact country list before you buy. A "Europe" plan is not the same product between providers and the edge cases, Turkey, the UK, the Balkans, vary.

Pricing and value

For small, short plans, Saily wins on headline price. A 1 GB local plan near USD 1.99 is hard to beat, and for a weekend trip where you only need maps and messaging, that is the rational purchase. Ubigi is the most expensive at the small end, with around USD 3 buying only 500 MB for two days in some markets.

The picture inverts at the top of the range. Ubigi's larger bundles in mature markets can reach genuinely excellent per-GB rates, in some cases under USD 0.60 per GB on 50 GB plans. If you are staying a month in Italy or the UK and you know roughly how much you will use, Ubigi is frequently the cheapest of the three on a cost-per-gigabyte basis.

HOLASIM competes on a different axis. Buying days rather than gigabytes only makes sense once your usage is high enough that the gigabyte arithmetic stops being comfortable. For a photographer uploading daily, a remote worker on video calls, or a family sharing a hotspot, an unlimited week usually costs less than the equivalent capped bundle, and removes the mental overhead of rationing. For someone checking maps twice a day, it does not.

Unlimited data

This is where the three genuinely diverge, and where the marketing language is most misleading across the industry.

HOLASIM's unlimited plans are unlimited in the sense most travellers expect: no daily gigabyte threshold, and no separate cap on tethered traffic. That second point matters more than it sounds. Several well-known unlimited brands throttle hotspot traffic specifically, which makes them unsuitable for anyone working from a laptop.

Saily's unlimited plans are fair-use capped. You get full speed for roughly 3-5 GB per day depending on the plan, after which speeds drop to 1-2 Mbps for the rest of that day. That is still usable for messaging, maps and standard-definition video, but it is not unlimited in the plain sense, and heavy users will notice. To Saily's credit, the hotspot itself is not separately capped.

Ubigi offers unlimited only in selected markets, with prices from roughly USD 19 for a short plan in Italy up to around USD 65 for 30 days in the US. Where it exists, it is competitive. Where it does not, you are buying fixed bundles, which is Ubigi's real strength anyway.

Support and user experience

Saily has the best app of the three and the strongest public review record, at 4.7/5 across more than 31,000 Trustpilot reviews. The bundled security features, ad blocking and web protection, are a genuine differentiator, particularly if you connect to hotel and café Wi-Fi often. The weak point is post-sale support: refund handling is slow, around five working days, and refunds are not guaranteed after activation.

HOLASIM's advantage is the opposite one: live human support, 24 hours a day, in English, Spanish and Portuguese. For Latin American and Iberian travellers in particular, being able to resolve an activation problem in your own language at 3am local time is worth more than a slicker app. The app itself is functional rather than flashy.

Ubigi's experience is the most technical of the three. Setup is straightforward on modern iPhones, where the APN configures itself, but older Android devices occasionally need manual IPv4 settings. In exchange you get device support nobody else matches: if you want data in a connected car or a Windows laptop with built-in cellular, Ubigi is effectively the default answer.

Which should you choose?

• Backpacker on a long, cheap trip: Saily. The low entry price, 202-country footprint and reinstallable profile fit a route that changes constantly. Accept the fair-use throttle.
• Business traveller: Ubigi for short trips in mature markets where 5G and laptop tethering matter, or HOLASIM if the trip is long and you want unlimited hotspot without thinking about it.
• Family sharing one connection: HOLASIM. Uncapped hotspot on an unlimited plan is the only configuration that comfortably supports several devices off one phone.
• Digital nomad: HOLASIM for destinations where you will work daily from a laptop, Ubigi where you are settled in one country for a month and can buy a large fixed bundle cheaply.
• Occasional traveller, one or two trips a year: Saily for the cheapest short plans, or HOLASIM if you dislike reinstalling a new profile each time.
• Privacy-conscious traveller: Saily, for the bundled ad blocking and web protection from Nord Security.

FAQ

Is Saily's unlimited plan really unlimited?

No, not in the plain sense. Saily applies a fair-use policy giving full speed for roughly 3-5 GB per day, then throttling to 1-2 Mbps for the remainder of the day. You will not be cut off or charged overage, but you will notice the slowdown on video.

Can I use any of these three as a laptop hotspot?

Yes, all three permit tethering. HOLASIM does not cap it on unlimited plans, Saily allows unlimited hotspot sharing on data plans, and Ubigi supports it across its range. This is a meaningful advantage all three hold over some unlimited-only rivals that cap tethered traffic at a few hundred megabytes per day.

Which has the best network quality?

Ubigi, in most mature markets, because Transatel operates as a full MVNO under the NTT Group with direct carrier agreements. The practical gap narrows in destinations where there is only one decent network anyway.

Does the eSIM profile expire?

HOLASIM's profile does not expire, which is its most distinctive structural feature: install it once and recharge it per trip. Saily plans must be activated within 180 days of purchase or they auto-activate, and Ubigi plan validity depends on the bundle you bought.

Do any of them include a phone number?

Ubigi offers voice and SMS on some plans. Saily sells a US number as a paid add-on but does not include calls and texts by default. HOLASIM, like most travel eSIMs, is data-only, so plan on using WhatsApp or another internet-based service for calls.

Can I switch my eSIM to a new phone?

Saily explicitly ties the eSIM to the device it was installed on, so a mid-trip phone change is a problem. With the others, check the provider policy before you travel, since transferring an eSIM profile between devices is restricted across most of the industry.

Verdict

If you want one answer: buy HOLASIM when you need data without thinking about it, buy Saily when you want the cheapest workable bundle, and buy Ubigi when network quality or multi-device support is the deciding factor. The three are not really competing for the same purchase. Saily wins the budget short trip, Ubigi wins the technical traveller and the month-long stay in a mature market, and HOLASIM wins the trip where a laptop, a family or a working day depends on the connection holding up, and where being able to reach a human at any hour in your own language is part of what you are paying for.