As CES opened Tuesday to the public, auto and tech companies like Nvidia and Gentex showed how AI technology can transform cars into proactive companions that adapt and react to drivers and passengers in real time.

Smart devices like baby monitors, fitness trackers and internet-connected appliances could soon carry labels certifying that they meet federal cybersecurity standards.

These age-appropriate wearables can put off the purchase of your child’s first smartphone. Here’s what users and experts say about key features on popular models and what to consider before you buy.