Question: what is the difference between bluetooth and zigbee?
Answer: In bluetooth, GFSK modulation technique is used. Whereas in Zigbee, BPSK and QPSK modulation techniques are used like UWB (Ultra-Wide Band). the frequency range supported in Zigbee mostly 2.4 GHz worldwide, it means 2.4 GHz is not supported all times. It covers more distance as compared with Bluetooth.