t-mobile, but better
Starting at €N/A/day for Mobile Data
Save up to 90% on roaming costs by using Firsty
Use Firsty for data, T-mobile for calls and messages
No contract, no hidden fees, no SIM swap needed
A Free Global Connection
Customised to your needs
Trusted by 400.000+ travelers
Trustpilot score of 4.6 out of 5!
T-mobile roaming vs. Firsty data plans
améliorez votre forfait de données mobiles
why firsty?
comment ça marche?
Allez-y, rapide ou au maximum. Vous choisissez
rejoignez le réseau mondial firsty
Profitez de votre forfait mobile
Stop overpaying for roaming
You shouldn’t have to worry about high roaming costs while traveling. T-Mobile may charge expensive roaming fees, leaving you with unexpected bills—but that’s not how it should be.
There’s a smarter way: Firsty! Compare T-Mobile’s international roaming costs with Firsty’s simple, affordable data plans. Transparent mobile data costs, Firsty ensures no surprise charges—just reliable global coverage at a fraction of the cost.
Using Firsty while traveling internationally can save you up to 90% on roaming fees—without compromising on coverage. T-Mobile limits you to a single partner network in each country, Firsty connects to multiple networks, always selecting the best available one for faster, more reliable data.
aimé à travers le monde
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questions and answers
As we develop our app you might encounter things you're not sure of. We're here to help. Below you'll find frequently asked questions on the Firsty eSIM, Firsty's data plans, and more.