What the Future Holds for Ever-Smarter Smartwatches

Smartwatches are far more than gee-whiz gadgets. Their evolution shows the future of wireless innovation. By next decade, the Dick Tracy-like wrist bands will harness next-generation wireless service, or 5G, the cellular upgrade that promises faster, more ubiquitous and lower-powered wireless connections.  Smartwatch hardware improvements will find their way into other small devices, such as augmented-reality headsets.

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