A video has gone viral on youtube because it shows a man filming or taking photos of the Mike's and Peter McNeely's match with a device from the XXI century when the match took place in 1995.
Devices with cameras weren't used until 5 years later in the year 2000. Tyson and McNeely were confronted on august 19, 1995.
Some people have tried to tear down the conspiracy theories saying that it was a Casio QV-10A or a Fotoman Logitech both were released on 1995.
In my opinion even when they look a like alot the camera lens is placed in a different way that those devices, so what is the truth??
I love things like this and I'd love for it to be real (I think the best one is of that lady in the film from the 20's or something who definitely looks like she's talking on a mobile phone - think it could've been a Chaplin movie?)
But I think this is likely the device in the second video you've posted.
Like if that was a smart phone then everyone in the crowd would be staring at them, but yet in the video no1 is batting an eyelid.