MacBook Air (mid-2012 and later)
MacBook Pro (mid-2012 and later)
Mac mini (mid-2011 and later)
iMac (late 2012 and later)
Mac Pro (late 2013 and later)
You can also check in the advanced settings:
Go to Apple Menu > About This Mac > System Report
Click on Hardware > Bluetooth
Check the LMP Version:
o If the value is 4.0 (0x6) or greater then the Mac supports Bluetooth Low Energy.