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Matrix shows off its battery-free smartwatch and IoT platform
Matrix is the company behind both the PowerWatch and the PowerWatch X, two timepieces that don't require batteries to work. Both were announced at the same time, but it's taken the X slightly longer to get here, but that's okay because there's a reason for being patient: The PowerWatch X, while still using the heat from your wrist to generate power, is also capable of offering up smartwatch notifications.