Prepaid eSIM: price, where to buy one and which to pick in France (2026)

What a prepaid eSIM really is

The word prepaid describes how you pay, not the technology. A prepaid eSIM is a data plan you pay for once, up front: when the volume is used or the period is over, the connection stops. Nothing renews, nothing is charged the following month, and there is no contract to cancel.

It is the exact opposite of a carrier plan, which renews every month until you cancel it. And it is the standard model of the travel eSIM: nearly every plan compared on this site works that way.

The eSIM part says nothing about price: it is simply a SIM card downloaded into the phone instead of slid into a tray. The two ideas combine, and that combination is what makes the purchase instant: you pay, you get a profile, you install it, you are online.

Not to be confused with a free eSIM, which means a 500 MB to 1 GB trial rather than a payment model.

The rat's advice: the real advantage of prepaid is not the price, it is the absence of surprises. You cannot overrun, you cannot be billed out of plan, and you cannot forget to cancel. For a trip, that is exactly what you want.

Can you buy an eSIM at a corner shop?

No, and it is not a question of availability. It is structural: an eSIM is a profile the phone downloads, there is no object to pass over a counter.

What a newsagent sells is a physical prepaid SIM card, in its plastic packaging, to slide into the phone's tray. It is a different product, and the confusion is fair: both answer the same need, getting online without a subscription.

Some resellers advertise « eSIM in store »: what they hand you is a QR code printed on a ticket or a card. The eSIM itself is still downloaded over the internet. In other words, the trip gains you nothing over an online purchase, and costs you the journey.

The rat's advice: if you are looking for a corner shop, it is probably because you want something right now. A prepaid eSIM is faster still: buying and installing happen from your sofa, in five minutes, and the profile is ready before you would have got out of the door.

What a prepaid eSIM for France actually costs

Here are the prices measured on 28 August 2026 in the comparator's provider catalogues, for an eSIM usable in France. Plans are compared at strictly identical volume and duration, otherwise the comparison means nothing.

On 3 GB valid 30 days:

eSIM Card: €2.17, or €0.72 per gigabyte.

Esimzon: €2.58, or €0.86 per gigabyte.

voilà: €3.30, or €1.10 per gigabyte.

Ubigi: €4.00, or €1.33 per gigabyte.

Saily: €7.99, or €2.66 per gigabyte.

On 10 GB valid 30 days:

eSIM Card: €5.62, or €0.56 per gigabyte.

Esimzon: €5.68, or €0.57 per gigabyte.

voilà: €8.70, or €0.87 per gigabyte.

Ubigi: €10.00, or €1.00 per gigabyte.

Saily: €17.99, or €1.80 per gigabyte.

Prices measured on 28 August 2026 in the provider catalogues. The full detail of the 67 plans available for France, kept up to date, sits on our France eSIM page.

Two figures worth keeping beyond those tables. The entry price starts at €1.02, for 1 GB valid 3 days, which is plenty for a frugal weekend. And the best price per gigabyte falls to €0.37, on a 100 GB plan valid 30 days: large volumes are always the cheapest per gigabyte, provided you actually use them.

On both readings voilà sits mid-table, behind eSIM Card and Esimzon but ahead of Ubigi and Saily. That is solid value for money on this footing without being the lowest price. The brand leans besides on an eSIM that is simple to install with an app that is easy to use, and on human customer support reachable 24 hours a day, 7 days a week. Every provider has its own ground: compare them all on our eSIM providers page.

Prepaid eSIM or prepaid SIM card: what really changes

Both are paid up front and stop when the credit runs out. The difference lies elsewhere, and it is decisive depending on your need.

The phone number. This is the biggest and least understood gap. A prepaid SIM card bought in France gives you a French number, for calls and texts. A prepaid travel eSIM is almost always data only: no number, no ordinary calls, no texts. You go through WhatsApp, Signal or internet calls.

The wait. A physical card means travelling to a shop, or waiting for delivery. An eSIM is installed in minutes, at any hour, from anywhere.

The SIM tray. An eSIM leaves your main card in place. You keep your usual line for calls and texts, and spend data on the eSIM. A physical prepaid card forces you to take the other one out.

Recovery. Losing a plastic card means losing the credit on it. An eSIM profile stays tied to your account with the provider, and can be reinstalled.

So the choice comes down to a simple question: do you need a French number? If so, you need a prepaid SIM card, or a carrier offer. If you just need internet, the prepaid eSIM is faster, cheaper and less constraining.

Which volume to pick for the length of your stay

The most common mistake is buying too big out of caution. Prepaid does not roll over: whatever is not used is lost.

Weekend, 2 to 3 days: 1 to 3 GB is enough for browsing, maps and messaging. From €1.02 in the catalogue.

One week: 3 to 5 GB for normal use, 10 GB if you watch video or share your connection.

Two to four weeks: 10 to 20 GB. That is the point where the price per gigabyte gets markedly better.

Long stay or remote work: look at the large volumes, where the gigabyte falls to €0.37, rather than stringing small plans together.

The rat's advice: reckon on about 1 GB a day if you use GPS navigation and social media, and 300 to 500 MB if you stick to messaging and a few searches. When in doubt take the size below and top up: at most providers, adding volume costs less than having overpaid at the start.

One last word for the profile that weighs most in this search: the foreign visitor in France. If you are arriving from outside the European Union, the prepaid eSIM is by far the simplest option, because it is bought before you even take off and works on landing, with no ID, no shop and no French bank account. Just check your phone supports eSIM before paying, with the checker at the top of this page.