Topic

Wearable health sensors

Optical and electrical sensors built into watches, rings and straps to measure body signals such as heart rate, blood oxygen and skin temperature.

Current clusters

product1 publisher

Apple puts the same watch sensors in a $399 aluminum case and an $899 ceramic one

MacRumors' buyer's guide puts the Series 12 and the Ultra 4 on the same S11 chip and the same Health Sensing System, so the $400 between them, and the $500 inside the Series 12 line, buys endurance and case material.

Publishers:macrumors.com

product1 publisher

Chest-strap test ranks the Series 12 heart sensor strongest in cycling and weakest in lifting

Rob ter Horst put Apple's rebuilt sensor against a Polar H10 across cycling, running and weightlifting. The three correlations span 0.97 to 1.0. The every-five-seconds resting stream sat outside the test.

Publishers:9to5mac.com

Reality

Evidence58
Adoption: Insufficient
Hype gap+15
Incentives52
Confidence60