Phone Cooler (Peltier)
A clip-on cooler that stops your phone from throttling itself when it gets hot.
What it changes
When a phone gets hot it lowers its own performance to protect itself. Frames drop and the picture stutters slightly. The awkward part is that heat peaks exactly when the workload does — a 5v5 teamfight, or a scrap around the Dark objective with effects stacking up. That is the worst possible moment to lose frames. A Peltier cooler pulls heat out of the back so the throttling does not start.
What to look at
Peltier coolers need USB power. Strong ones can form condensation on the back panel, so mount them where droplets will not run into a port. Clip mounts can overlap the edge of the screen — check they do not sit on your skill buttons. They also make noise, so plan on using them with earphones if you listen for audio cues. Before buying, try taking the case off — sometimes that alone is enough.