蓝牙是在 IEEE 802.15.1 下开发的，用于通过无线电信号提供无线通信。蓝牙支持的频率范围从 2.4 GHz 到 2.483 GHz。它覆盖的距离比 Zigbee 短。在蓝牙中，使用GFSK调制技术。
而在Zigbee 中，BPSK 和 QPSK 调制技术的使用类似于 UWB(超宽带)。 Zigbee 支持的频率范围在全球范围内大多为 2.4 GHz，这意味着并非所有时间都支持 2.4 GHz。与蓝牙相比，它覆盖的距离更远。
在上图中，我们可以看到蓝牙的数据传输速率比 zigbee 快，而 zigbee 覆盖的距离比蓝牙大。
蓝牙和 ZigBee 有很多共同点，即 IEEE 802.15 WPAN 的每个区域单位样式。每个都在一对 .4-GHz 未授权频段内运行，并且每个都使用微小的因素和低功耗。除了这些相似之处，下面以表格形式给出了一些差异。
| S.NO | Bluetooth | Zigbee |
|---|---|---|
| 1. | The frequency range supported in Bluetooth vary from 2.4 GHz to 2.483 GHz. | While the frequency range supported in Zigbee mostly 2.4 GHz worldwide. |
| 2. | There are seventy nine RF channels in Bluetooth. | There are sixteen RF channels in zigbee. |
| 3. | It uses GFSK modulation technique. | Whereas it also uses BPSK and QPSK modulation techniques like UWB. |
| 4. | There is maximum of 8 cell nodes in Bluetooth. | While there is more than sixty five thousand (65000) cell nodes in zigbee. |
| 5. | Bluetooth requires low bandwidth. | While zigbee also requires low bandwidth but greater than Bluetooth’s bandwidth most of time. |
| 6. | The radio signal range of Bluetooth is ten meters. | While the radio signal range of zigbee is ten to hundred meters. |
| 7. | Bluetooth was developed under IEEE 802.15.1. | Whereas it was developed under IEEE 802.15.4. |