SpO2 and ECG on a Watch: What They Are Not
Two features on modern watches borrow their names from a hospital. One is SpO2 and the other is ECG. Seeing them on a listing makes it sound like your wrist is now a clinic. It is not. Both are worth โฆ
Tag: sensors
What a Fitness Band Can and Cannot Measure
Someone in your family wears a fitness band. It tells them they slept badly, or that they did not walk enough. Most of us take those numbers at face value. But a band does not measure most of what it โฆ