Find Bluetooth version in Windows 10
You can easily check the Bluetooth version of your Windows 10 PC via the device manager.
Press Win+X to open the Start Menu and select Device Manager.
Under Bluetooth, you will see several Bluetooth devices.
Select your Bluetooth brand and right click to check the Properties.
Go to the Advanced tab and check the firmware version. The LMP number shows the version of Bluetooth your PC is using.
Below is the LMP version table-
LMP 9.x – Bluetooth 5.0
LMP 8.x – Bluetooth 4.2
LMP 7.x – Bluetooth 4.1
LMP 6.x – Bluetooth 4.0
LMP 5.x – Bluetooth 3.0 + HS
LMP 4.x – Bluetooth 2.1 + EDR
LMP 3.x – Bluetooth 2.0 + EDR
LMP 2.x – Bluetooth 1.2
LMP 1.x – Bluetooth 1.1
LMP 0.x – Bluetooth 1.0b
It’s a bit of time consuming so if you don’t really want to open so many tabs to check the Bluetooth version, you may want to use some third party tool like Bluetooth Version Finder.