The Apple Watch may be the most popular smartwatch in history and a few months behind Samsung, Sony and Android.
The original smartwatch was created in 1927, and then there was an upturn again in the 80s and 90s.
In 1910, Nathaniel Baldwin invented headphones. A prototype was sent to Lt. Comdr. A. J. Hepburn of the U.S. Navy. Hepburn tested the device and found it worked unexpectedly well to transmit sound.
The Navy began to ask for more headphones from Baldwin, who could only manage orders of 10 at a time because he was producing them in his kitchen.
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