Garmin has unveiled its latest wrist-worn GPS marvel for those who don't treat exercise as a dirty word, the Garmin FR70 Fitness Watch. A reasonably low-profile half inch thick, the FR70 uses ANT+ to talk to other exercise equipment, such as the bundled heart rate monitor. That way, it can track the time you've been working out, along with your heart rate and how many calories you've burned.
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