Garmin Vivosmart

The new investigation also found substantial differences between the performance of specific devices, with consumer products generally outperforming research wearables.

Garmin has been in the wearable business since at least 2003, but the company has only been in the highly competitive consumer fitness tracker market -- with its VivoSmart and VivoFit lines -- for a little under a year.

Garmin Vivosmart GPS navigation maker Garmin has announced a new activity tracker, called Garmin Vivosmart.