Bluetooth cable and Bluetooth mesh are two different technologies that can be used to enable wireless communication in IoT (Internet of Things) devices. Let's take a closer look at each: Bluetooth Cable: Bluetooth cable, also known as Bluetooth Classic or Bluetooth BR/EDR (Basic Rate/Enhanced Data Rate), is the traditional Bluetooth technology that has been used for many years. It is designed for short-range communication and is widely implemented in various devices such as smartphones, headphones, and speakers.

• Range: Bluetooth Classic has a typical communication range of up to 10 meters (33 feet) in open air.
• Data Rate: It supports data rates of up to 1 Mbps (megabits per second).
• Bandwidth: Bluetooth Classic operates in the 2.4 GHz ISM (Industrial, Scientific, and Medical) band, which is shared with many other wireless technologies.
• Devices: It is used in legacy devices and is often found in devices that require a simple and low-power connection, such as wireless headphones, keyboards, and mice. Bluetooth Mesh: Bluetooth mesh is a later development that builds upon the foundation of Bluetooth Classic. It is a network topology that allows for many-to-many communications between devices, which is particularly useful for IoT applications that require a large number of devices to communicate with each other.
• Range: Bluetooth mesh is designed to extend the range of Bluetooth communication, with potential ranges of up to 100 meters (330 feet) or more in indoor environments.
• Data Rate: Like Bluetooth Classic, it supports data rates of up to 1 Mbps.
• Bandwidth: It also operates in the 2.4 GHz ISM band.
• Network Capability: Bluetooth mesh is designed to support large-scale networks with many nodes. It allows for relaying of messages through intermediate nodes, which can significantly extend the range and reliability of communication.
• Applications: It is well-suited for IoT applications such as smart lighting, sensor networks, and industrial automation, where many devices need to communicate with each other efficiently. In summary, Bluetooth cable (Bluetooth Classic) is the traditional technology that is widely used for simple, short-range wireless communication in various devices. Bluetooth mesh, on the other hand, is a more recent development that enables many-to-many communication and is particularly useful for IoT applications that require large-scale, reliable, and energy-efficient wireless networks.