Bluetooth 5.1 specification officially announced: achieving centimeter-level positioning accuracy.


Thanks to the wider transmission distance (300 meters), lower power consumption, faster speed (2Mbps), and the ability to connect two audio devices at the same time, Bluetooth 5.0 (released in June 2016) is rapidly gaining popularity.

This week, the Bluetooth SIG announced that Bluetooth 5.1 has been delivered to developers, and the most noteworthy of the new changes is the “direction finding” feature. The Bluetooth organization hopes to replace the Wi-Fi’s auxiliary positioning role with the 5.1 standards, which will help scenes that require location services such as GPS, including determining distances and even precise locations.

The Bluetooth SIG said that the positioning accuracy of 5.1 can reach centimetre level (currently 1 to 10 meters), and it will play an important role in indoor navigation and a quick search for the bracelet/remote control board.

Other features include an optimized GATT (Common Attribute Profile) to improve pairing and communication speed; a random channel index that helps avoid packet collisions ensures Bluetooth ad arrival rates and more.

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