"Android provides built-in platform support for Bluetooth Low Energy (BLE) in the central role and provides APIs that apps can use to discover devices, query for services, and transmit information.
Common use cases include the following:
Transferring small amounts of data between nearby devices.
Interacting with proximity sensors to give users a customized experience based on their current location.
In contrast to classic Bluetooth, BLE is designed for significantly lower power consumption. This allows apps to communicate with BLE devices that have stricter power requirements, such as proximity sensors, heart rate monitors, and fitness devices."
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