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: health
Reading a Sleep Score Without Losing Sleep Over It
You wake up feeling perfectly fine. Then your wrist says you slept badly and gives you a score out of a hundred. By the time you reach the kitchen, you feel tired. That is worth guarding against. Your watch did โฆ
What Your Watch Is Doing When It Reads Your Pulse
Take your watch off at night and look at the back of it. Two or three tiny green lights are still blinking in the dark. They have been doing that against your skin all day. That is how your watch โฆ
The First Hour With a New Fitness Band or Watch
The box is open and the band is on your wrist. You want to start walking, not sit through setup screens. Give that first hour anyway. Almost every number you see for the next year rests on what you enter โฆ
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
Let Your Parents' Phone Do the Remembering
As our parents get older, the day fills with little things to remember. Tablets with breakfast, a doctor's appointment, enough water, the BP check. Somebody ends up holding that list in their head. Usually them, and quite often you as โฆ
How a Call Log Can Reveal a Diagnosis
Think about a single morning of phone calls. Not the words in them, only the numbers dialled. That short list can say something you have not told a soul. What do four calls look like from outside? The first call โฆ