What is a Bluetooth device?

Many mobile phones now have the slogan of Bluetooth support, but supporting Bluetooth does not mean that it has Bluetooth transmission capabilities.

Some people may think that this is related to the Bluetooth version of the mobile phone. Some Bluetooth 1.1 and some are Bluetooth 1.2.

In fact, the reason is not at this level, but more related to the standards of various Bluetooth projects.

If your mobile phone uses more Bluetooth standard projects, then your mobile phone will The stronger the Bluetooth capability.

Introduction to the Bluetooth function of mobile phones

First, let’s talk about several major Bluetooth standards

1. Address book

Almost all Bluetooth The mobile phone can transfer the Outlook contacts to the computer,

But very few of the computers' Outlook contacts can be transferred to the mobile phone.

2. Communication transmission

In fact, this is the Internet function, which is supported by all Bluetooth mobile phones. The function of a mobile phone can be regarded as equivalent to a cat.

The other is GPRS on WAP network.

This is also a GPRS mobile phone that supports GPRS, a WAP mobile phone that supports WAP, and a CDMA mobile phone that supports CDMA

3. Fax

This function may be rarely used because mobile phones There is a service fee for adding the fax function

4. Bluetooth headset

There is nothing special about this, it is supported by all.

Bluetooth headsets were born for Bluetooth phones.

It’s just that the price is a bit expensive and there’s no way around it

5. File transfer

Most mobile phones support file transfer, but most of them transfer files from the mobile phone to other devices. The Bluetooth device supports FTP file transfer from PDA and computer to mobile phone.

6. Serial port service

This is hard to say, many functions can be realized through the serial port

For example, a Bluetooth mobile phone controls the computer, or connects to the network, etc.

This can actually be called an extension of existing functions.

Aren’t there many data cables with COMS ports~~~

7. Mobile phone service

There are indeed not many mobile phones that support this function

< p>Perhaps Sony Ericsson models have more support. Through this function, you can not only send text messages with computers and PDAs

but also make calls very smoothly, representing the MP of software PDA

Now let me compare my three Bluetooth mobile phones S65

The first one is X11, but it is Panasonic’s earliest version of Bluetooth mobile phone

They all support the simplest Bluetooth< /p>

For the mutual transmission of files, the function is not as good as infrared

But Bluetooth transmission speed is very fast and the protection is very safe

Normally if you don’t accept files, you won’t be able to On, the communication function is very good for transmitting with smart Bluetooth mobile phones such as SX1

The second one is S55, which is Siemens’ first Bluetooth mobile phone

It is more comprehensive in terms of functions Almost all the functions I mentioned above are available

And it can also support FTP files on the mobile phone.

That is, I directly use a computer or PDA to control the file management on my mobile phone.

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It is also very convenient to send various files in my device to my mobile phone

The third model is S65, which supports stronger email capabilities

But it is different from the S55 Bluetooth is relatively similar and does not support more functions.

Through comparison, we found that although Bluetooth in mobile phones are still high-end models,

But I think mobile phone Bluetooth still plays a very important role in data transmission of mobile phones.

SL75 abandons traditional infrared and supports Bluetooth, which shows that

Bluetooth will become one of the main transmission methods for handheld wireless devices.