Earl's wife has an Apple Watch, but she gets a rash when she wears it. Leo says that nickel can cause a rash, and there is no nickel in it. So that may be the cause. But it could be the wristband, so try a new wristband. You can also get an AppleWatch case that will cover the entire watch, except for a small opening for the sensor. You could try that. But it won't be able to measure heart rates. Leo says the YNIWA is $9 on Amazon.