Kinect has the ability to recognise you and sign you in to your Xbox One console. When you download your profile to your console, or during your initial console set-up, you will be given the option to sign in using Kinect.
Set up automatic sign-in with Kinect during initial set-up
After you've created or downloaded your profile, you’ll be prompted to either Sign me in with Kinect or Sign in manually. To allow Kinect to sign you in automatically, select Sign me in with Kinect.
Next, the Kinect sensor will record your biometrics, such as your facial features and body shape, so that it can distinguish you from other people in your play space and sign you in. If there are others in the sensor’s view during this step, make sure that you identify yourself by raising your hand when prompted.
Set up automatic sign-in with Kinect at a later date
If you select Sign in manually, you can always set up automatic sign-in later. Here's how:
Press the Menu button on the controller and select Settings, or say “Xbox go to Settings".
Select Sign-in, Security & Passkey.
Under the Sign-in & Security column, select Kinect sign-in.
Your Kinect will try to detect you and if your name appears next to you on the screen, select That’s Me. If your name doesn’t appear, raise your hand.
Train the Kinect sensor to recognise you better
You can train your Kinect to recognise you better if it ever fails to identify you. Here's how:
While signed in as the Primary profile, press the Xboxbutton on the controller to return to Home.
Go to Sign-in in the upper-left-hand corner.
Select I wasn’t recognised.
Select your gamertag.
Make sure that your name appears next to you on the screen and select That’s me.
Kinect sign-in data is saved on the console. If you want to use this feature on other consoles, you must set it up on each console.
If multiple people are in the sensor’s view during sign-in, known users will have their names highlighted next to them. “Guest” will appear next to unknown users.
If your appearance changes a lot, you may need to have Kinect sign-in recognise you better. For example, if you grew a beard, lost weight or have new spectacles. (If you wear glasses regularly but change to contact lenses, Kinect may have trouble recognising you.)
If you make a mistake by selecting the wrong person during sign-in, simply follow the instructions above to have Kinect recognise you better.