The main difference between Bluetooth 5.1 and Bluetooth 5.0 is that the latter adds a direction finding function and a centimeter-level positioning function. This new feature of Bluetooth 5.1 can replace traditional WiFi assisted positioning, which can make indoor positioning more accurate, and it can also accurately locate small objects to avoid item loss. The following is a detailed description:

        Compared with Bluetooth 4.2, Bluetooth 5.0 has a transmission rate of 24Mbps, which is twice that of Bluetooth 4.2LE; the effective transmission distance is 4 times that of the previous version. Theoretically, the effective working distance between Bluetooth transmitting and receiving devices can reach 300 Meter. Combining wifi can achieve indoor positioning with an accuracy of less than 1 meter; at the same time, Bluetooth 5.0 will greatly reduce the power consumption of Bluetooth, so that people no longer have to worry about the short standby time when using Bluetooth.

        Bluetooth 5.1 is the latest Bluetooth standard announced by the Bluetooth Technology Alliance (SIG) on January 28, 2019. Compared with Bluetooth 5.0, the latest version of Bluetooth has added direction finding and centimeter-level positioning services. The addition of this function enables indoor positioning. It will become more precise, and the location of small objects can also be accurately positioned to prevent items from being lost.

         And we will also apply this technology in the latest Bluetooth headsets, such as the TS09 sports ear-hook headset, which is already equipped with the Bluetooth 5.1 protocol.