BluetoothDevice: gatt property
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
  The
  BluetoothDevice.gatt read-only property returns
  a reference to the device's BluetoothRemoteGATTServer.
Value
A reference to the device's BluetoothRemoteGATTServer.
Specifications
| Specification | 
|---|
| Web Bluetooth # dom-bluetoothdevice-gatt | 
Browser compatibility
BCD tables only load in the browser