The smartwatch that never needs charging

The PowerWatch 2, which was unveiled at CES, is a smartwatch that uses a thermoelectric generator and solar cells to charge its battery


Price: $499 (out Jun 2019)

Weight: 60-70g

47mm

Glass

Solar cell: Uses superior amorphous silicon, rather than crystalline silicon, to absorb indirect and indoor light

Microcontroller: Small, highly efficient Ambiq Apollo 3 computer on single integrated circuit,
featuring 96MHz ARM Cortex M4F processor

Matrix Gemini thermoelectric generator: Uses Seebeck effect to generate 20-100mV of electricity from difference in temperature between wearer’s wrist and watch backplate. Matrix Mercury DC-DC boost converter then increases voltage to 5V, enough to power electronics and charge battery

Screen: Colour LCD display shows fitness metrics like heart rate, pace, distance, steps, sleep, cadence, and more

Tough outer shell

Battery

MatrixMercury

Backplate


Sources: Matrix Industries, Indiegogo, Engadget 
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