After doing some research, I discovered that Apple Watches can cause skin irritation, including rashes and burn marks. This was highlighted in a 2025 post by a user on X. While there is a potential for skin irritation from wearing Apple Watches, it seems to mainly affect individuals who are already at a higher risk of experiencing such reactions.
According to Apple Support, "... every material that touches your skin has gone through extensive evaluation in accordance with our specification." This includes material composition tests, toxicological assessments, and consultations with dermatologists. Even with all those precautionary steps, the Apple Support page goes on to describe how certain users may experience skin irritation from materials such as nickel and acrylates included in Apple Watches.
A secondary source I found, verywellhealth, interviewed a board-certified dermatologist at Westlake Dermatology, and they stated that while it is possible to experience irritation or a rash from wearing an Apple Watch, it’s not extremely common. An additional interview with a board-certified dermatologist at Weill Cornell Medicine found that certain groups of people are at a higher risk of developing irritation from Apple Watches. These include people with sensitive skin, such as those with eczema or psoriasis, very dry skin, or individuals who sweat excessively.
Apple is clearly biased towards its product, as they have a financial and reputational interest in making its products appear safe. While they do acknowledge some irritation risk, they try to downplay the prevalence or severity of reactions by using language like "A small number of people will experience reactions to certain materials," and "Another potential cause of discomfort is wearing your Apple Watch too tightly or loosely."
Apple's official support page recognizes that some materials used in Apple Watches, like nickel and acrylates, can cause skin irritation for some users, which supports the X users' claim. Additionally, two board-certified dermatologists have confirmed that irritation or rashes from Apple Watches can occur.
While it is possible to experience skin irritation from Apple Watches, both dermatologists indicated that it is not extremely common, suggesting the risk is relatively low for the general population. Additionally, Apple's extensive material testing process, including toxicological assessments and dermatologist consultations, suggests the company has taken meaningful steps to minimize risk.