Arguably the most interesting phones for teardowns are the gaming ones. Even most of the flagship phones these days look almost identical on the inside while gaming handsets require more sophisticated internal design to keep the CPU and GPU up and running at full capacity for longer. Well, the Xiaomi Black Shark 3 Pro is no exception. This beefy gaming device has two thick copper heatpipes connected to the metal shields on top of the SoC itself. But to access them, you have to remove the bow tie-shaped glass sheet on the back of the phone. We haven't seen back designs like this one so...
Source: https://www.gsmarena.com/xiaomi_black_shark_3_pro_teardown_reveals_unorthodox_build_and_big_heatpipes-news-42392.php