It’s been three years but smartwatch brand Polar is back with a new Vantage wearable now sporting the company’s recent “biosensing technology” platform.Called Polar Elixir, the platform consists of sensors giving the Vantage V3 the ability to measure key bodily functions like your cardiovascular system, autonomic nervous system, and body temperature. In return, athletic users receive vast amounts of data detailing their physical condition, providing insight on how to improve workouts. As an example, data from the Wrist-ECG sensor
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