The gap between buying a mobile plan and being able to use it used to be measured in days. An envelope had to arrive, a tray had to be prised open with a pin, and if the wrong size had been sent the whole thing started again. An eSIM plan removes that gap entirely: the profile downloads onto the handset, and the line works within minutes of ordering.
For anyone who has just landed in France, that difference is not a convenience. It is the difference between having a French number on day one and spending a week without one.
How the activation actually runs
- Check the handset supports eSIM. Most phones released in the last few years do, and the setting usually sits under mobile network options.
- Order the plan and receive the profile. No physical delivery is involved, so nothing depends on an address you may not have yet.
- Scan or install the profile. The phone adds the line alongside any existing one rather than replacing it.
- Choose which line handles calls and which handles data. A dual-profile handset lets both numbers stay active at once.
The whole sequence takes a few minutes, and none of it requires visiting a shop or waiting for post. The SIM and eSIM are both provided free across the prepaid range, and activation carries no charge either.
The plans available as an eSIM
These prepaid mobile plans can all be taken as a digital profile rather than a posted card.
Forfait 250Go 5G – Lyca S plus
The high end of the prepaid range at €8.99, with 250 Go of 5G data, unlimited national calls and texts, and 14 Go of roaming valid across Europe, Ukraine and Moldova. If the eSIM is going onto a main handset rather than a spare, this is the one that removes any need to think about data.
Forfait 7.99
One hundred and fifty gigabytes at €7.99, with unlimited national calls and texts. It sits at the point where most people stop noticing their allowance, which makes it the sensible default for a first French line.
Forfait 10go – Lyca S
Ten gigabytes at €9.99, alongside unlimited calls to 51 destinations. The small data allowance is deliberate: this plan is built around voice, so it suits an eSIM used mainly to stay reachable rather than to stream.
Forfait 2go – Pass Budget
Two gigabytes at €4.99, with unlimited national calls and 300 texts. As a second profile on a phone that already has a main line, this is the least intrusive way to hold a French number without carrying a second handset.
Where a second profile genuinely helps
Two live lines on one phone solves a set of problems that used to require two devices. A work number and a personal number stop bleeding into each other. A French number can sit alongside a home-country number during a move, so neither has to be given up during the overlap. And a travel profile can be added for a trip and removed afterwards without touching the main line.
The practical caution is battery and signal management rather than compatibility: two active profiles search for two networks. Most handsets handle it without any noticeable difference, but it is worth knowing before assuming nothing changes.
Worth knowing before you switch
An eSIM is tied to the handset rather than to a card, which cuts both ways. Nothing can be lost or damaged, but moving to a new phone means transferring the profile rather than moving a card across. The transfer is straightforward and can be done from the account, though it is one extra step at the moment of changing device.
Keeping an existing number is unaffected. Portability is requested at sign-up and the old line closes by itself, whether the new line arrives as a card or as a profile. A French mobile plan can therefore be taken on the same day a decision is made.
The short answer
If the phone supports it, there is little reason to wait for a physical card. Take the 250Go plan for a main line, the 7.99 as a straightforward default, the 10go if the line is mostly for calls, and the 2go Pass Budget if it is a second profile alongside an existing number. All four activate the same way. The full eSIM range is set out at Lycamobile. More guides of this kind appear regularly on flauntchic.com.
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