Oppo announced the Find X5 Pro a month ago as its latest flagship with a Snapdragon 8 Gen 1. The phone already has an advanced built-in cooling solution, but the company now introduces a special Ice-Skin cooling case that helps keep the temperature further 2-3 degrees C lower. The case has a special hydrogel layer, developed by Wuhan University. Regular hydrogels draw moisture from the air and then release it through evaporation. However, in order to provide long-term cooling and not just a one-time solution, the researchers developed Glacier Mat - modified hydrogel that re-absorbs...