Best eSIM for France

Most trips to France run on data from the first hour. You will look up the RER B timetable from Charles de Gaulle (CDG) into central Paris, show a timed Louvre or Eiffel Tower ticket on your phone, follow Citymapper through Métro interchanges and translate a menu or two. Airport counters at CDG and Orly (ORY) do sell prepaid SIMs, but the queue lands right after a long-haul flight and prices there sit above what the same operators charge in city shops, where you will usually be asked for ID to register the SIM. A home-carrier roaming pack works, yet it is metered by the day and bought before you know how long you will really stay. A prepaid data eSIM installed at home solves all of that: you land in Paris, Nice or Lyon, switch the eSIM on, and your phone is online before you reach passport control. Your own number stays live for calls and bank OTPs on the other SIM slot.

Start with how long you are staying and how much of it is Paris. A five-day city break built around the Métro, museum bookings and restaurant searches is moderate on data; a two-week loop through Paris, the Loire, Lyon and the Côte d'Azur adds train bookings on SNCF Connect, navigation on unfamiliar autoroutes and far more photos going to the cloud, so pick a larger allowance or plan to top up. Streaming on the TGV is what really eats data, so download shows beforehand if that is your habit.

5G is live from all four French operators in the big cities, so a 5G-capable phone will often be on it; 4G is what you will see across most of rural France, and it is more than enough for maps and messaging. You do not need a French number: Uber and Bolt both work on your existing account, and restaurant bookings run through apps or email.

If France is one stop on a Schengen itinerary that also covers Italy, Switzerland or Spain, the Europe bundle saves you juggling three plans; check its plan card for the country list. Hotspot sharing is enabled on most plans, useful for a companion's tablet on a long train leg. Confirm your phone is eSIM-ready at our device checker before buying, particularly if it was bought in a market where some models ship without eSIM.

France has four national mobile networks: Orange, SFR, Bouygues Telecom and Free Mobile. Your eSIM attaches to whichever partner network the plan card lists and picks the strongest 4G or 5G signal available. In Paris, Lyon, Marseille, Nice, Toulouse and Bordeaux you will see 5G much of the time, and most of the Paris Métro now has 4G underground, so Citymapper keeps working between stations. Coverage along the TGV corridors is decent but drops in tunnels and deep cuttings; the trains carry onboard Wi-Fi as a fallback. Where signal thins is predictable: the high Alps above the resort villages, the Pyrenees, the Massif Central, the Cévennes and sparsely populated stretches of Burgundy and the Limousin, where 4G can fall to a single bar. Corsica's coastal towns are covered; its interior mountains are patchy. On the Côte d'Azur the network is dense all the way from Marseille to Menton.

• Paris — 5G across the centre, 4G in most of the Métro and RER, and at both CDG and Orly.
• Nice — 5G along the Promenade des Anglais and strong coverage along the coast to Cannes and Monaco.
• Lyon — reliable 4G/5G throughout, including the Part-Dieu station area.
• Marseille — good coverage in the city; trails in the Calanques lose signal in places.
• Bordeaux — solid city coverage; the Médoc vineyards are 4G country.
• Strasbourg — dense coverage, but your phone can see German towers along the Rhine, and a France-only plan will not use them.
• Chamonix and the Alps — villages and lift stations are covered; glaciers and high trails are not guaranteed.

If you are staying under a month and your phone supports eSIM, the travel eSIM is the least effort: nothing to queue for at CDG and nothing to register. A local SIM makes sense if you will be in France for months or need a French number. Roaming suits EU and UK visitors whose carriers already include France; for Indian, US and UAE travellers it is usually the costliest of the three, as the airport SIM comparison shows.

1. Choose a France plan above and pay; the QR code and install details arrive by email within minutes.
2. iPhone on iOS 17.4 or later: tap the direct install link in the email. Older iPhones: Settings › Mobile Data › Add eSIM, then scan the QR code.
3. Android: Settings › Connections (or Network & internet) › SIM manager › Add eSIM, then scan the QR or type in the SM-DP+ code.
4. Label the new line France so you can tell it apart from your home SIM.
5. Switch on Data Roaming for the France line and turn mobile data off on your home SIM.
6. When you land at Charles de Gaulle, Orly or Nice Côte d'Azur (NCE), select the France eSIM as your mobile-data line; it connects within a minute or two of leaving flight mode.
7. Validity starts at that first connection, not at purchase or install.

Install the eSIM at home over Wi-Fi two or three days before you fly; installation does not start the plan, so nothing is wasted. Keep your home SIM as the data line until you are on the ground in France. If you are only transiting Paris on the way somewhere else, remember the eSIM will connect during the layover at CDG and start the clock, so leave it switched off unless France is part of the trip. Arriving on the Eurostar from London, the plan begins as the train comes out of the tunnel on the French side.