如果你的设备内置了蓝牙和Wi-Fi功能，那么哪一个速度更快？今天的超级用户问答帖子回答了一位好奇的读者的问题。

今天的问答环节是由SuperUser提供的，SuperUser是Stack Exchange的一个分支，是一个由社区驱动的问答网站分组。

问题

超级用户读者jt0dd想知道蓝牙是否比Wi-Fi快：

I notice that on my iPhone, when I use my personal hot-spot to distribute Wi-Fi and I have Bluetooth enabled, the phone will make a Bluetooth connection to my laptop instead of a Wi-Fi connection.

So I am wondering…is Bluetooth faster than Wi-Fi?

哪一个更快？

答案

超级用户贡献者Mokubai为我们提供了答案：

The Bluetooth standard’s maximum data rate is, at best, 3 Mbps or about 2.1 after protocol overheads take their cut.

Wi-Fi on the other hand, maxes out anywhere from 54 to 1300+ Mbps depending on whether you have “g”, “n”, or “ac” Wi-Fi plus any enhancements in the adaptors and router support.

So no, Bluetooth is not faster than Wi-Fi. Not even vaguely close.

Bluetooth version 3 and version 4 have higher data rates, but the actual data transfer in those implementati*** happens over Wi-Fi; Bluetooth is only used to set up and negotiate the connection.

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