Amazon’s Halo wristband: the fitness tracker that listens to your mood – The Guardian

Amazon is bringing out its first fitness tracker, a wristband called the Halo, which will eavesdrop on its owner to assess if they are happy or sad based on their tone of voice.
A pair of always-on microphones will listen to users, trying to assess their mood and stress levels. After a training period, the band periodically checks in and listens to your speech, categorising it into a number of emotional buckets such as hopeful, elated or hesitant and offer an overall view of peak positive and n…

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