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119 posts

Master Geek
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Topic # 151417 24-Aug-2014 22:23
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Today, I've tried sharing photos using NFC for the first time.

Found it very convenient compared to bluetooth sharing.

I just have a question. I thought NFC has a limited sharing range/distance, meaning that the two devices have to be within a close range of approximately 10 cm. This has been my understanding so far.

Out of curiosity, I tried increasing the distance, and found no problem within 4-5m.
I did turned off wifi and 3g as well. 

How is this possible? Am I missing something here?

Of course, when you pair the devices, they have to be side by side but once it's paired, I found that the devices can be apart 4-5 m and still the files will transfer without any problem.

Can someone explain this to me?

Just to make myself clear, I did photo sharing through NFC, not through wifi direct or bluetooth.
It was between nexus 5 and galaxy s5.

Cheers

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253 posts

Ultimate Geek
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  Reply # 1114865 24-Aug-2014 22:40
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I think this actually uses blue tooth to transmit the data. NFC only sets up the connection







534 posts

Ultimate Geek
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  Reply # 1114877 24-Aug-2014 22:41
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astrae: I think this actually uses blue tooth to transmit the data. NFC only sets up the connection

From my experience on my nexus 5 it uses nfc for the wholething




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  Reply # 1114879 24-Aug-2014 22:43
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When you "bump" the phones together it pairs both the phones by Bluetooth and sends the file via that, on Samsung phones it does it via WiFi Direct.




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  Reply # 1114913 25-Aug-2014 06:35
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NFC is used to connect between the phones.

Once connected, the data is transferred by direct wifi or bluetooth (depending on the phone).





253 posts

Ultimate Geek
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  Reply # 1114936 25-Aug-2014 09:03
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Here is an older article about it  when jellybean first came out.









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