In response to the demand for connecting IoT devices, AmazonHardware LaunchAt the same time, it was announced that it would launch a wireless network connection technology called Sidewalk, which will use the 900MHz frequency band to connect various smart network devices, with the longest connection distance being about 1.6 kilometers.
Amazon has not yet disclosed further details of the technology behind Sidewalk, but emphasized that it will enable IoT devices to easily connect to each other, and will have a higher power endurance and connection effect than Wi-Fi and Bluetooth. It is also easier to deploy than 5G networking technology, making it very suitable for connecting IoT devices.
Fetch, a dog tracking tag built with Sidewalk technology and expected to be officially launched next year, will automatically notify its owner if a dog wearing this tag accessory leaves a designated area, thereby reducing the number of pets lost at home.
Similar technology, OPPO proposed at this year's Shanghai MWC 2019Wireless communication technology that can connect within a range of 3 kilometersIt claims to be built in a decentralized manner. Even without mobile network, Wi-Fi, or Bluetooth, it can still transmit text and voice files and even complete voice calls with a mobile phone within a range of 3 kilometers.
