It's been a while since Sony released its current flagship, the Z3, which was a decent piece of technology and power combined, not to forget its classic monolithic design which the company uses on its devices. The whole world now looks forward to Sony's next flagship, the Z4. We know that Sony has quite a reputation in releasing two flagships each year, So we can confidently assume that it might release its Z4 at the upcoming Mobile World Congress (MWC) which is in March. The Z4 is rumored to have an 'actually usable' 4K support, that we doubt because its predecessors were only capable to shoot a 5 minute 4K video without heating it up to its extreme and hanging up. In addition to that it's going to have a 4K resolution too. Impressive, but is it worth it? Because having a 4K resolution comes with a heavy cost of the device's battery life. So, obviously Z4 must have a powerful battery to support this feature. Moreover, it is said that Sony will reduce the bezel width from top and bottom of the screen to make it feel more 'premium' in our hands. The image from Future Supplier shows how it may look on the Z4, if the provided image is true and accurate then this tweak is ought to be considered as a huge plus point over the Z4's design. It will also have the same IP68 waterproof rating which was seen on the Z3. In the leaks and according to Phone Arena, the Z4 is also said to have 20.7MP snapper, using Sony's latest sensor, the IMX230. it'll have a 5MP (4.8) front facing and furnished with the feature to take real-time HDR still shots and 192 point auto-focus shots, in order to reduce the blurring in photos. For the hardware, it'll have a 2.8GHz octa-core CPU made up of 4 Cortex A57 and A53 cores, 4GB of RAM and a decently massive 3420 mAH battery life, which might be sufficient enough to light up its 4K display and still have some juice left for the next day, we suppose. Also, it is said to feature a CAT.6 LTE connectivity allowing upto 300 Mbps download speeds and a Bluetooth 4.1.