Bluetooth 5.3 is the latest version of the Bluetooth wireless communication standard. It was released in 2021 and includes several feature enhancements that improve reliability, energy efficiency, and user experience in many types of Bluetooth-enabled products. Some of the changes introduced in Bluetooth 5.3 include:
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Channel Classification: Prior to version 5.3 of the core specification, Bluetooth Low Energy channel classification was performed only by the Central device. However, if two connected devices are not in close proximity with each other, the radio conditions of the Peripheral device may differ from those experienced by the Central.
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Encryption Key Size Control Enhancements: Bluetooth 5.3 introduces enhancements to the encryption key size control, which improves security.
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Extended Range and Enhanced Connectivity: Bluetooth 5.3 offers up to four times the range of earlier versions, resulting in enhanced intelligence and efficiency.
Bluetooth 5.3 is a minor update to the Bluetooth 5 standard, and it is more stable and faster than Bluetooth 5.0. It is expected to become more widespread in the near future. Bluetooth 5.3 finds extensive application in various IoT devices, including sensors, smart home appliances, and healthcare devices.
