If you're sending simple text strings between two Bluetooth devices (as in a chat application), then there may not be much of an advantage to using OBEX.

如果要在蓝牙设备之间发送简单的文本字符串(例如在聊天应用程序中)，那么使用OBEX可能没有太大优势。

youdao

In the real world, RFCOMM should be used when you want to take a traditional serial port application and make it Bluetooth-enabled.

在现实世界中，如果想使用传统的串口应用程序，并让它能使用蓝牙，就应当使用RFCOMM。

youdao

RFCOMM is better when you want to send and receive stream data (and when you'd like to take a traditional serial port application and Bluetooth-enable it).

如果想发送和接收流数据（而且想采用传统的串口应用程序，并给它加上蓝牙支持），那么 RFCOMM 更好。

youdao

And if you're into Bluetooth, the Address Book application can use the wireless technology to display the caller-ID information from a Bluetooth-ready wireless phone, provided you also have a Bluetooth device attached to your computer.

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