Xbox Console: Xbox One, One S, One X, Series X, Series S (all have built-in Wi-Fi 5/6). Original Xbox 360 requires separate Wi-Fi Adapter (discontinued); 360 S/E have built-in.
Wireless Network: 2.4 GHz or 5 GHz Wi-Fi (WPA2/WPA3). Wired Ethernet recommended for stability.
Xbox Live Subscription:Game Pass Core (formerly Gold) for online multiplayer; Game Pass Ultimate includes Core + library + cloud.