why does iphone 4s not have airdrop

I am on the "Macintosh" is greedy with an excuse to pilfer your piggy bank band wagon. If this tech were not possible then the "BUMP" app would not have worked. Probably why BUMP conveniently left the market. Just saying.

Your post is totally incomprehensible. What were you smoking when you wrote it?

BUMP worked differently. Having actually implemented the bump api into one of my iPhone apps, I can tell you. It does NOT directly connect with the other device for data transfer. It shoots the data up to their cloud and then back down to the target device.

Lawrence writes "It uses a feature of the BlueTooth 4 specification that is physically not implemented in the WiFi chips before the 4S."

Um....Bluetooth and WiFi are different technologies. You cannot implement Wifi inside of Bluetooth or vice versa.....perhaps there is a single chip which performs both tasks, but the radio frequencies and protocol stack for Bluetooth and Wifi are different.

Anyway, back to my search to find a definitive answer to this question from people with a little more understand about technology.

Brilliant. Responding to a post made over a year ago, and consisting of nonsense to boot.

To say that my response is nonsense because I am saying that Bluetooth and Wifi are different technologies indicates just how little you know about the subject matter.

I will not respond any further to you. I will respond so that others will have an answer when they go searching.

Lawrence is correct, Wifi direct is not supported in iPhone 4s. But this has nothing to do with Bluetooth.

If you are developer of apps and hardware device like me, go here to find out more - https://developer.apple.com/library/prerelease/ios/documentation/MultipeerConnec tivity/Reference/MultipeerConnectivityFramework/index.html

Apple have created a Framework that manages both BLE and Wifi Direct into one library that operates in a similar fashion (This is likely why lay people like Lawrence are arrogantly confused).

remixed wrote:

Anyway, back to my search to find a definitive answer to this question from people with a little more understand about technology.

???
It was answered in the very first response in this thread...

iPhone 4 does not have a wifi direct chip.

For fun reading… -> http://www.wi-fi.org/discover-wi-fi/wi-fi-direct

remixed wrote:

To say that my response is nonsense because I am saying that Bluetooth and Wifi are different technologies indicates just how little you know about the subject matter.

I will not respond any further to you. I will respond so that others will have an answer when they go searching.

Lawrence is correct, Wifi direct is not supported in iPhone 4s. But this has nothing to do with Bluetooth.

If you are developer of apps and hardware device like me, go here to find out more - https://developer.apple.com/library/prerelease/ios/documentation/MultipeerConnec tivity/Reference/MultipeerConnectivityFramework/index.html

Apple have created a Framework that manages both BLE and Wifi Direct into one library that operates in a similar fashion (This is likely why lay people like Lawrence are arrogantly confused).

I am hardly a "lay person." I have been active in the computer industry for 50 years. I have been a developer, architect, and author and am now retired. I invented a WiFi-like technology in 1981 that was demonstrated, but was dropped and supplanted by the current standard. For your information, WiFi and BlueTooth are implemented in the same chip in the iPhone. I should have said "WiFi/BlueTooth" chip when I made that post OVER A YEAR AGO, but that is merely an oversight. The fact is the chip does not implement WiFi direct, as you correctly point out. And does not implement BlueTooth 4/Bluetooth LE/BlueTooth Smart. The link you provided is interesting, but it applies to the iPhone 5 and later, not the 4S (which is the subject of this thread).

The bottom line is the 4S does not support AirDrop because the hardware does not support it.

Third party apps do support file transfer. I guess they are better programmers than apple.

"Dukto is a simple application that allows you to share files between devices connected to the same (wireless) LAN network."

http://www.tidal.it/?page_id=309&lang=en

http://www.msec.it/blog/?page_id=11

Works on my iPhone 4.

Robert

You only found 2? There are dozens, all targeting different special needs. Have you noticed that Apple tries not to compete with app developers? In almost any area, there are more advanced apps than the built in functions. Dozens of calendar apps better than the built in calendar for example. Which encourages app developers to make the investment. This is a good thing.