How much data your Android TV box needs depends on what you are streaming. A standard 720P movie will use between 0.7 and 2 GB, while watching the same movie in 4K might use 10 GB. It is recommended that you need at least 3 Mbps to stream content in standard definition, and 5 Mbps to stream in HD. If you want to stream in 4K, you will need to upgrade that to 15 Mbps.