Usiminas released quarterly earnings earlier in the day, posting net income of 171 million reais ($45.5 million), reversing losses from a year earlier.
As declining ore reserves push mines to greater depths and also to remote locations, companies are increasingly testing wearables to cut costs, decrease risk and drive productivity.
The settlement follows a long legal battle by miners to win compensation for illnesses they say they contracted over decades because of negligence in health and safety.