Main Difference Between BJT and FET

BJT(Bipolar Junction Transistor)	FET(Field Effect Transistor)
In BJT Current is carried by both Electrons and Holes	In FET Current is carried by only one type of charge particals,either electrons or holes
It is also known as Bipolar device	It is also known as Unipolar device
The current flow is controlled by input current	The current flow is controlled by an electric field setup in the device by an external applied voltage
BJT is a Current Controlled Device	FET is a Voltage Controlled Device
BJT has low input impedance	FET has high input impedance