Wearables
Watches, straps and what they measure.
2 guides
Wearables
Explainer Can you trust the calories on your watch? See how far off it can be Your watch says you burned 412 calories, and it feels exact. It isn't. Wrist devices measure heart rate well, but calories burned is a… 4 min Wearables
Explainer Chest strap or wrist watch? How accurate is your heart rate? Your watch says 148, but is that really your heart rate? A wrist watch reads blood flow with green light; a chest strap reads the heart's… 5 min 3 picks
Explainer Can you trust the calories on your watch? See how far off it can be Your watch says you burned 412 calories, and it feels exact. It isn't. Wrist devices measure heart rate well, but calories burned is a… 4 min Wearables
Explainer Chest strap or wrist watch? How accurate is your heart rate? Your watch says 148, but is that really your heart rate? A wrist watch reads blood flow with green light; a chest strap reads the heart's… 5 min 3 picks