Yes, absolutely. France has excellent infrastructure. You will have reliable 4G/LTE (and 5G) coverage inside the Paris Metro stations and tunnels. On the TGV (high-speed train), you will have a stable connection for most of the journey, though it may briefly drop in very remote countryside tunnels. It's perfect for watching movies or using SNCF Connect (the train app).
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Will I have a signal in the Paris Metro (subway) and on high-speed trains (TGV)?
Updated April 22, 2026
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