Comprehensive Internet and Mobile Connectivity Guide: Prague

T-Mobile and O2 dominate the local market along with Vodafone. They've already rolled out 5G to 93% of the country. This means you'll get fast speeds in the city and out in the woods. T-Mobile usually wins on raw speed. They hit median downloads of about 95 Mbps. O2 is the old state operator, but they're still great for low lag. Vodafone focuses on travelers and has plans built for visitors. O2 and T-Mobile actually share their towers in the countryside to save money. But in Prague, they're rivals. This competition keeps the signal strong and the prices fair in the capital. If you want to save every koruna, look for MVNOs like Tesco Mobile or SAZKAmobil. They use the big networks but charge much less at the supermarket checkout.

Physical SIMs are still the most reliable way to get connected. The Czech Republic is great for privacy because there's no ID check for prepaid cards. You don't need a passport. Just walk into a shop and pay with cash. Then use a PIN to start. Skip the airport shops. They offer zero help if your phone is locked or the network won't connect. Wait until you get to a real store in the city center. T-Mobile and O2 usually offer 15GB of data for 299 CZK. T-Mobile is a favorite because they keep you connected for maps even after your fast data runs out. Vodafone has a special Data SIM for Visitors for 499 CZK. It gives you a massive 20GB. You can top up your balance at any gas station or Sazka lottery terminal across the country.

If your phone supports eSIMs, you can skip the stores entirely. Download a digital profile before you land and you'll have 5G the second you arrive. The market is very competitive. Jetpac has deals starting at $1.00 for 1GB. Providers like Airalo and Saily also offer solid 5G data plans. Just keep in mind that most of these are data-only. You won't get a local Czech phone number starting with +420. This is a problem if you need a text code for a food delivery app or want to call a local restaurant. If you need a number, get a physical card. Trying to switch a local prepaid SIM to an eSIM at a shop is often a hassle. Some shops charge extra fees and the switch can take a full day.

Prague's public Wi-Fi is actually quite good. You'll find free hotspots in the Municipal Library and on the newer low-floor trams. Even the Prague Zoo has great coverage. Most cafes and big malls like Palladium or Quadrio consider Wi-Fi a basic utility. If you're a student, the eduroam network is everywhere. Use a VPN to stay safe on these open networks. The real star of the show is the Metro. Every single station and tunnel in the system now has full 5G coverage. This was a massive project finished in late 2023. You can stream a movie or take a video call while zooming under the Vltava river. It's a huge win for the city's digital setup.