Every time a new gaming phone is announced we hear a lot about the cooling – so it is surprising that the biggest vapor cooling chamber is not found in a gaming phone but in the Sony Xperia Pro instead. Zack from JerryRigEverything has taken apart his fair share of ROG Phones, Black Sharks, Red Magics and so on, so he knows what he is talking about. Sony used a plastic frame and plastic back on the Pro model rather than the metal and glass design of the Xperia 1 II. That may have improved durability (the plastic back is not going to crack easily), but it also complicated cooling. The...
Source: https://www.gsmarena.com/sony_xperia_pro_has_the_largest_vapor_cooling_chamber_in_a_phone_yet-news-48209.php