LOL :) For the first time I'm watching a video which claims S4 better than Z1. As a person using both of these phones, I must say you missed certain key features of Xperia Z1.
Z1 is much stable than S4, S4 hangs so often while running bigger apps while Xperia Z1 works like a charm.
Display: You claimed that Z1 is having only a TFT screen while S4 is having AmoLED, but Z1 is having Full HD TRILUMINOS™ Display with X-Reality for mobile which is much better than AmoLED. In addition Z1 have OptiContrast & Direct Touch which is less reflective, more responsive.
Camera: You missed Xperia Z1's Exmor RS Image Sensor, G Lens, BIONZ image processing engine, Timeshift Burst, Superior Auto, SocialLive, Info-eye, AR Effects etc while reviewing Camera. Much above all other phones Z1 is having the world’s first ultra high resolution camera. Check this: http://www.sonymobile.com/in/legal/testresults/xperia-z1/#most-compact
When you talked about Design, you claimed both are equal. Have you forgot some words like Bravia, Monolithic Design, Single Frame Metal Display etc?
Z1 has Enhanced Stamina Mode which takes less than 3% of battery for 6-8 hours while Samsung won't last more than 18 hours of battery.
For Camera testing you shot Z1 on 8MP mode, you should have used 20.7 Mode instead.
You mentioned about Samsung's inbuilt features like AirView and all, but why didn't you mention about X-Reality, ClearAudio+, Exmor RS, Miracast, dlna, MHL and all?
Next time, do mention what Sony have included. For ref: FREE Portable Charger, FREE Premium Case, Xperia Privilege Movies, X4 Video, Smart Connect, Sony Select, Sony Music Unlimited Downloads, McAfee Mobile Security for 1 Year, Magnetic Dock Charging, Enhanced Stamina Mode, NFC, ClearBass, Throw, Media Server, DUALSHOCK 3 Wireless Controller, MirrorLink & Most Important of all Sony Verified Updates
So my review is,
Sony Xperia Z1 is the best smartphone available now. THIS REVIEW VIDEO IS COMPLETELY AMATEUR & JUST INTENDED FOR SAMSUNG'S PROMOTION. GROW UP KIDS!