Wireless technology that connects devices over short distances without cables. Like an invisible cord that lets devices talk to each other.
Bluetooth connects your wireless headphones to your phone, or your wireless mouse to your laptop without any wires.
Bluetooth is a short-range wireless standard (not a cloud provider service). Cloud platforms may integrate with Bluetooth via IoT gateways, mobile apps, or edge devices, but there is no direct AWS/Azure/GCP/OCI “Bluetooth service.”