Open the Activity app on your Apple Watch. Swipe to the Sharing screen. Select the friend you want to challenge. Scroll down ...

Open the menu by holding up on the watch face, then select System. On most Garmin watches, you'll find hot keys under ...

On your iPhone, go to Settings > Accessibility > Apple Watch Mirroring. Tap to enable the feature. Mirroring begins ...

OpenAI is scouring the U.S. for sites to build a network of huge data centers to power its artificial intelligence technology ...