Live casinos exist thanks to real-time streaming and video technologies. So, look at them as if they were video conferences and live streams, and it will be clear for you that a smartphone's 4G data plan may not be enough. A game of Blackjack Live or Live Roulette online, a round of Baccarat against a professional dealer who is hundreds of kilometers away from you will require a more stable Internet connection and use more data. Live games may not work smoothly without a fast Wi-Fi connection.