Some Apple Watch users have reported skin irritation, rashes, and marks that resemble burns, but these cases are rare and not caused by the device overheating or malfunctioning. Most skin reactions are due to friction, trapped sweat, dirt, allergic reactions to materials in the band or watch, or wearing the device too tightly. Apple acknowledges that a small number of people may experience irritation and advises loosening the band, keeping the skin clean and dry, and consulting a physician if problems occur. Medical case reports and consumer complaints confirm isolated incidents of rashes or redness under the watch, but these are not indicative of a widespread defect. Expert analyses and user discussions suggest that most marks are contact dermatitis or irritation rather than burns. Overall, the claim that Apple Watches broadly cause burns or skin rashes is exaggerated.