What can smartwatches measure?

05 Tem 23:45

Smartwatches aren't just about telling time anymore—they're fitness trackers and health monitors rolled into one. They collect a wide range of data, from heart rate monitoring to stress tracking, blood oxygen levels (SpO2) sensors, and even step counting. At their core, they use IMU sensors to gather 24-hour heart rate and movement data to track your steps. Some models even support electrocardiograms (ECGs), which can detect irregularities in your heart rhythm. Sleep analysis is another key feature; they distinguish between deep, light, and REM sleep to score your sleep quality. For athletes, there are specialized profiles. They automatically detect activities like running, cycling, and swimming. For instance, waterproof models can track swimming styles and calorie burn in detail. The optical heart sensor beneath the dial also calculates breathing data. Battery life is a must-have for smartwatches. Some models last 2-3 days even with constant data collection, and there are even wireless charging options. Finally, managing notifications is a breeze—messages, calls, and even social media alerts pop up on the screen.