Fitbit Force users report roughly 10,000 cases of skin irritation

Some side effects can come with activity monitoring with a Fitbit Force health tracker, but they’re not sore muscles or an accelerated heart rate — rather, they involve skin irritation around the wrist.

More than 10,000 people have reported skin irritation — including redness, rashes, itchy and dry patches, and blistering — from their Fitbit Force, according to the US Consumer Product Safety Commission. Because of these issues, the CPSC posted Fitbit’s official recall notice on its site on Wednesday. Now, all Force owners can get a full refund for their device.