| Parameters |
ZigBee |
Bluetooth |
Wi-Fi |
GSM |
| Range |
30m – 1.6 KM |
30 – 3000ft |
100 – 150 ft |
30 - 35 KM |
| Power Consumption |
Low |
Medium |
High |
High |
| Frequency |
2.4G |
2.4G |
2.4G |
900 and 1800 MHz |
| Protocol/ Modulation |
CSMA / CA, DSSS |
FHSS |
CCK, OFDM, DSSS |
MS, BTS, BSC,MSC |
| Cost |
Low |
Low |
High |
Medium |
|
