03.04.2014 09:20 Uhr, Quelle: Engadget

TomTom's new GPS watches track your heart rate without a chest strap

Now that smartwatches have built-in heart rate monitors, it's not enough for GPS watch makers to require a chest strap for the same feature -- they've got to step up. TomTom, at least, is ready. It just revealed the Runner Cardio and Multi-Sport

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