Travelling with a data connection is just so much more convenient, whether you're ordering a taxi or getting directions on Google Maps. There are a ton of reasons why it's useful to have an internet connection on your phone.
Mobile phone, Internet and Wifi

Good news! If you're European, you'll know that there are no longer any roaming charges when travelling within the European Union. In Brussels, you can, therefore, use your mobile phone subscription under the same conditions as at home. However, most restaurants, bars and hotels are happy to share their Wi-Fi if you need it. Several of Brussels' top tourist attractions also offer the free "wifi.brussels" network.

Wifi.brussels: the capital’s free Wi-Fi network
Wifi.brussels is the official free Wi-Fi network of the Brussels-Capital Region. A great many Brussels hotspots are equipped with it: squares, public places, along major roads, STIB metro stations and certain museums. How can you connect? Look for the "wifi.brussels" network, click on it and create your account. You will immediately have access to all the wifi.brussels spots in the region. You only need to do this once, the network will then recognise your device automatically.
Free Internet access in 27 Belgian train stations
Are you early and have to wait for your train? Connect to the SNCB Wi-Fi! Belgium's busiest train stations have free Wi-Fi access. It's available in their main halls, corridors and on the platforms. All you need to do is create an account on MySNCB to enjoy high-speed Internet access.
The stations with Wi-Fi access are Aalst, Antwerpen-Berchem, Antwerpen-Centraal, Bruges, Brussels Airport-Zaventem, Brussels-Central, Brussels-Luxembourg, Brussels-South, Brussels-North, Brussels-Schuman, Charleroi-Sud, Kortrijk, Denderleeuw, Gembloux, Ghent-St-Pieters, Halle, Hasselt, Liège-Guillemins, Leuven, Mechelen, Mons, Namur, Ostende, Ottignies, Sint-Niklaas, Tournai and Vilvorde.
Belgian operators and SIM cards
Are you planning to stay in Belgium for a while? Take out a subscription with Orange, Proximus, Voo, Scarlet or Telenet/BASE, the five main mobile network providers in Belgium.
Great deal alert! Prepaid SIM cards are also available from authorised outlets. The advantage of Belgian cards is that there are no roaming restrictions in the EU and free roaming within the EU is included. Your Belgian SIM card is, therefore, also valid in Rome, Paris, Lisbon, Athens and even London, despite Brexit, at no extra cost!