Argentina eSIM and SIM cards: Personal, and why you can't buy it

Start with the mismatch

Argentina's networks are ranked clearly enough. Personal leads on coverage, reaching 92% of paved national routes, with the widest 5G deployment at 18 cities. Movistar comes second, averaging 41.4 Mbps. Claro is third. National average download speed sits around 45 Mbps.

Now look at what you can actually buy. Of the providers in our Argentine data, only eSIMCard publishes the networks it attaches to, naming Movistar and Claro. Airalo, Nomad, Saily and Holafly publish no host network for Argentina — none of the four publishes one anywhere — so we cannot tell you which Argentine operator their plans use. Earlier versions of this page attached Movistar and Claro to Nomad and Saily, and Movistar Argentina to Holafly; all of that came from our own older text rather than from the sellers, and it was wrong. What we can say is that no provider we track names Personal.

That is unusual, and it inverts the normal advice. In most countries the guidance is to find out which network your eSIM runs on and pick the good one. In Argentina the good one is not on the menu. The only route to Personal is a physical SIM bought inside the country, and that route has its own toll, which we will get to.

Where the missing network costs you something

Movistar is not a bad network. Second place out of three, 41.4 Mbps average, and perfectly adequate across Buenos Aires, Córdoba, Mendoza and the corridors between them. If your trip is a week of restaurants, museums and Ubers in the capital, the network question does not exist for you and you should skip to the pricing section.

The 92% of paved national routes figure attached to Personal is the one to hold onto, because it describes something specific: the long-distance driving that a lot of Argentine itineraries are built around. Ruta 40. The run south to the lakes. The stretches between towns in Patagonia where the next settlement is a long way off and the reason you want a signal is not Instagram.

The brief we work from does not give us a matching route-coverage percentage for Movistar or Claro, so we are not going to invent one or imply a gap we cannot size. What we can say is that Personal is the network rated best for exactly that kind of travel, and it is the network no eSIM will give you. If your trip is built around long drives in the south, that is a real trade-off to weigh rather than a technicality.

Argentine data is expensive, and you can see it by comparison

The cheapest verified gigabyte in the Argentine data is $2.35, and two sellers charge exactly that: Nomad's 20 GB at $47 over 30 days and Airalo's 20 GB at $47 over 30 days. An earlier version of this page put the floor at $1.65 a gigabyte, on Nomad's 20 GB month. The $33 we printed for that plan had never been read off Nomad's site, and it was wrong. The real price is $47, and Argentina is the most expensive market Nomad sells anywhere. The number means very little in isolation. Put it next to the same providers' pricing for an EU destination and it means quite a lot.

The metered providers charge a substantial Argentina premium, which is what you would expect: EU regulation caps what operators can charge each other for wholesale roaming, and no equivalent applies in South America. Holafly charges one too. An earlier version of this page printed $27.30 for Holafly's Argentine week and the same $27.30 for its Greek week, and concluded that Holafly sold unlimited as a flat product priced without reference to local capacity costs. Neither figure had been read off Holafly, and the conclusion drawn from them was wrong: the verified prices are $35.90 for Argentina and $27.50 for Greece, a 31% premium that sits in the same range as Airalo's.

Every row above is now verified — read off each seller's own site for both countries, Airalo's on 13 August 2026, Nomad's on 17 August 2026 and Holafly's on 18 August 2026. The percentage gaps are large enough that they survive a fair amount of drift either way.

The passport at the counter

Argentine prepaid SIMs require identity registration. You will need your passport, and the purchase is a registration process rather than a transaction. Airport prices sit around $15.

That is the toll on the Personal route. It is not prohibitive — plenty of travellers do it, and $15 is not much money — but it is a queue at the end of a long-haul flight, and it means arriving without working data. If you are landing at Ezeiza late and heading straight into the city, you probably want something already active on the phone.

The obvious play, if the network genuinely matters to your trip, is both: a cheap short eSIM for the arrival day and the first taxi, then a Personal SIM bought properly in a city shop where staff have time and you have your bearings. A cheap short plan exists precisely for that job. We can no longer point you at eSIMCard's, because its rows have been withdrawn — we read its site on 18 August 2026 and the figures we held were wrong — but Airalo's verified 1 GB over three days at $5.00 does the same work.

We do not know how much data the roughly $15 local SIM includes. It varies by carrier and promotion, and rather than guess we will say plainly that this is the number that would settle the argument and we do not have it.

The pricing escalator, in one look

If you only take one piece of purchasing advice from this page, take this one: do not buy small.

• Nomad 20 GB / 30 days, $47 — $2.35 per GB
• Nomad 10 GB / 30 days, $28 — $2.80 per GB
• Nomad 5 GB / 30 days, $16 — $3.20 per GB
• Airalo 3 GB / 7 days, $10 — $3.33 per GB
• Airalo 1 GB / 3 days, $5 — $5.00 per GB

A gigabyte bought in a 1 GB packet costs more than twice what the same gigabyte costs in a 20 GB packet. You are not buying better data at the top of that list; you are declining to pay for packaging at the bottom of it.

Unlimited sits outside this comparison. Holafly sells six durations here and nothing else — $19.90 for three days, $28.90 for five, $35.90 for seven, $39.50 for ten, $50.50 for fifteen and $89.50 for thirty. That is $6.63 a day at the short end falling to $2.98 at the long end, not the flat $3.90 a day this page used to claim. If you would use 10 GB in a week, Nomad's verified 10 GB at $28 is now $7.90 cheaper than Holafly's week, and gives you three more weeks of validity on top. Saily's verified 10 GB is $29.99, which undercuts Airalo's $30 by a cent and loses to Nomad by two dollars.

What we would do

City trip, Buenos Aires and the classics: the cheapest 10 GB plan with a 30-day window. Movistar is fine, the network question is not live, and anything you spend chasing coverage is wasted.

Patagonia, the Lake District, long driving: buy a small eSIM for the arrival, then get a Personal SIM in a city shop with your passport. It is the only way to get the network rated best for national routes, and on a road trip that is worth an hour of admin.

Mixed trip, no appetite for admin: the cheapest 20 GB eSIM, and accept that whatever it attaches to, it is not Personal. This is a defensible choice, not a compromise you should feel bad about.

Anyone: ignore the 1 GB tiers except as a deliberate arrival-day purchase.

For provider-level pricing across countries, see the cheapest eSIM comparison. For the physical-SIM side of this decision in more detail, there is a separate Argentina SIM card guide.