Lithium battery "precision treatment" technology is available, and used batteries are expected to be "reborn"

After intense competition in football, rugby and other sports, it can detect the potential probability of concussion in athletes and test whether the athletes are conscious.

This smart personal weather device relies on cloud computing to transmit the "local" weather condition data collected by the device to the user's smartphone. Users can also share this weather information and pictures on their social networks.

Ordinary cameras will have less and less room to survive, and the only ones left on the market will be the Sony RX100 series with large sensors, some telephoto products and various rugged cameras.

Nabi Square HD is an action camera designed for kids. It's very durable, easy to use, and can shoot 4K video. It costs $170.

The built-in sensor uses multiple bands to dynamically read the blood flow in different layers of blood vessels under the skin, so that the accuracy of heart rate readings no longer needs to be restricted by the constraints of a chest strap.