Polar is out with a robust new smartwatch today built for serious athletes. The Grit X features military-grade construction, up to 100-hour battery life, cardio, muscle, and perceived load monitoring, sleep tracking, and more, giving a glimpse at some of the powerful features we could see arrive on Apple Watch someday.
The post Apple Watch goals: Polar launches Grit X smartwatch w/ up to 100-hour battery life, cardio and muscle load data, sleep tracking, more appeared first on 9to5Mac.
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