Half an hour of PUBG is enough to turn my Redmi into what feels like a different phone, so I stopped trusting my memory and started writing numbers down instead.
The routine is boring on purpose. The phone sits on a shelf for twenty minutes in a 26°C room. Case comes off, brightness locks at 50%, charging cable stays out, airplane mode goes on. After that I open the game and play the same Erangel route every single time — same landing spot, same rotation, same two firefights. Anything variable ruins the comparison, and a random hot drop will do exactly that.
Every 30 seconds I read three things. Battery temperature and the thermal status come from an adb command I keep in a plain text file, so I don't fumble with flags mid-match. I type it, glance at the output, go back to playing. Frame pacing I pull twice — at the five-minute mark and at the end — from the latency dump of the game's surface layer. I also hit the back panel with a cheap IR thermometer from 2 cm away, right above the camera bump, where the SoC actually sits.
The dump is what changed my mind. My frame counter happily reports 60 while the latency numbers say a fifth of frames missed their deadline. That gap is the whole reason I keep logging.
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