Matrix adds a solar cell to its battery-free smartwatch
The company claims it can do GPS and optical heart-rate tracking without a battery.
Matrix shows off its battery-free smartwatch and IoT platform
The PowerWatch X uses the heat from your wrist to generate power.
Matrix PowerWatch hands-on: The promise of a world without chargers
Your body is this smartwatch’s power source.
POWER Watch fan controller with LCD gauges
Racing fans everywhere will surely appreciate the new "POWER Watch" fan controller from Ja...