As the Apple Watch finally becomes more available, so too do reports of users who may suffer from skin reactions to the materials used in the bands. A small number of buyers have posted to Twitter and other services to show skin rashes they say are caused by the bands, a not-uncommon complaint among users of any sort of watch. Thus far, the reports focus on sensitivities to the bands more than the Watch itself, which does contain a warning about the use of nickel in the device.