One of the defining things about the Sony Xperia 1 IV of its predecessor is that the periscope module offers a continuous zoom in the range of 85-125 mm (magnification from 3.5x to 5.2x). Impressively, the new module is only slightly larger than that of the Mark 3, which could only change between 70mm and 105mm. Also note that the new module has a longer focal length, which may account for part of the increase in size.
Interiors of the Sony Xperia 1 IV compared to the 1 III • The new periscope module
The video below WekiHome shows a disassembly of the Xperia 1 IV. The back is attached, but most of the rest is fastened with screws, even the headphone jack, which should make it easier to replace things in case they break. However, replacing the screen requires almost complete disassembly.
Actually, the video starts with a performance test Peacekeeper Elite i Genshin Impact. The phone consumes 4.58 W while running the first and 5.32 W for the second (set to 720p / 60fps). Genshin it pushed the temperature of the front and back to about 45 ° C (113 ° F).
As you can see in the disassembly, there is a copper strip covering the back of the screen to help guide the heat away from the chipset. However, Sony could have done a little better than putting thermal stickers on the Snapdragon 8 Gen 1 and the UFS 3.1 storage chip. See our review of the Mark 4 for more details on performance (especially sustained performance).
The Sony Xperia 1 IV began shipping to Europe last week, so locals can grab one if they have the € 1,400 to spend. Americans will have to wait until September, though.
Source (in Chinese)