Just a brief translation:
One is an iPhone 5s and the other is, Im not sure what it is gonna be called, probably the iPhone 6. You guys might be curious if this phone that I am holding might be a knock off or fake, but it does have an Touch ID, I (you) dont think so? Lets try and see that again.
My personal feel of the phone is that it is faster than the 5s. When I got the phone, I personally feel that it is very light, much lighter than expected when seeing the (leak) images online. It might be seen that the iPhone 6 is gonna be heavier, but it is not. Thus, I feel the iPhone 6 is much a lot lighter than the iPhone 5s. That is the first thought about the phone.
(80% accuracy)
The second thought is about the screen size. One might think that it is gonna be too big and needs more than one hand to operate, and Apple has done it with only one hand usage. (Not sure: By making the screen size taller to achieve it). Still feels comfortable using the iPhone just like the iPhone 5s.
(50% accuracy)
Thirdly is the radians (according to Google Translate) or Bezel on the sides, somewhat like the Samsungs I9300 (or SIII). Which makes it feels comfortably good with one hand. [Talks about technology of the screen with him mentioning 2.5.
On the back, it still retains the design of the iPhone 5 backing of the 3 parts. And still on the back, the iPhone 5s camera is within the body of the phone, but the one on the iPhone 6s camera is protruding outwards. Some may feel that it is ugly, but I personally feel that if the camera quality is better, it is something good too (or I dont mind either).
Since there isnt much apps or software running, the performance feels about the same. But if according to Apple, the internal specs would certainly be an increase. For that, we would only know after the event.
Lets open the camera app, this is the screen, (takes picture), taking pictures feels very fast, very fast, cant imagine that. *Goes on opening the Photos app* Photo still feels quite small.
And that is all.
*Shows the different apps on the phone*
Unsure of the megapixel of the camera due to the lack of information.
The health app may connect to the iWatch.
And that is pretty much it.