How to Connect Your Phone to an Xbox One | Digital Trends
You must be online when you set up Xbox One for the first time. Without an internet connection, you can’t finish setup. After your Xbox has updated and you’ve added your profile, you can go offline. Play games (provided you’ve set this as your home Xbox or have a game disc) Do you need Internet […] Do you need internet for Xbox One backwards compatibility Dec 10, 2015 Xbox One Won't Connect to WiFi? 3 Steps to Fix the Issue Aug 20, 2018
The same casting experience available on Microsoft's Surface Hub and Windows has finally arrived on Xbox One! Microsoft's Wireless Display app lets you wirelessly project your Windows or Android based devices to your Xbox One. - Instantly share photos you've just taken with family and friends without having the photos sync through a cloud service.
You don't need internet. There is an offline mode. Also you can play it off the browser so you don't need to download. However, I don't think you can that offline. Amazon.com: xbox one wireless controllers
Dec 09, 2018
[Yes or No] ? Can you Use Bluetooth Headphones on Xbox One