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Polar launches Grit X2 smartwatch with ECG, SpO2 and a full week of battery for outdoor athletes

Polar has introduced the Grit X2, its latest outdoor-focused smartwatch aimed at athletes, hikers, and endurance enthusiasts. The launch comes a year after the company released the Grit X Pro in March ...

Should you sleep with a smartwatch on? The 3 critical factors that decide if it’s worth the discomfort

In addition to tracking sleep, these smartwatches also help track factors like blood oxygen level and heart rate variability, ...

Thinking about buying a smartwatch for health tracking? Don't overlook ECG feature

ECG-enabled smartwatches can help monitor heart rhythm patterns, flag irregularities and add useful context to everyday ...