your sj4000 updated firmware has gone from your site and I have 2x old style pre labelled "sjcam" running the "N" firmware that needs updating..Actually, i think we have verified that one of the above resellers mixes in fake models with their batches.
If you receive a fake, please keep all of your order including packaging and send me pictures to firstname.lastname@example.org
Also, another thing to consider when purchasing an SJCAM is the aftersales or warranty policy.
I think this highlights something, when someone says "where can I buy X the cheapest" that generally goes hand in hand with "where can I get the worst service" had you have bought from the cheapest place and had to have gone through the same process and have it replaced twice etc I'd expect your opinion of the whole experience would be a lot different than it is right nowI bought my SJ4000 Wi-Fi at B&H Photo Video. As of the date of this reply the price is $78.99. That might not be the cheapest but it's not bad. I chose them because of the seller's excellent reputation, free shipping, no sales tax outside of New York, fast delivery and absolutely no-hassle returns. I had to return two cameras due to defects and it was no problem and no cost. Original shipping took three business days as did replacements. I verified at the official SJCam website that all the cameras were authentic. The price temporarily dropped about two weeks after I bought mine and when I asked for a refund for the difference they did so with no questions asked..