curvature noun [U or C]. âº the âstate of being âcurved or âbent: the curvature of the earth's âsurface a âpronounced curvature of the âspine. (Definition of curvature from the Cambridge Advanced Learnerâs Dictionary & Thesaurus Â© Cambridge University Press). See all translations.
The Apple Watch uses your age, gender, height and weight, in addition to the GPS in your iPhone and data from its own built-in sensors, to calculate both your resting calories and ones you burn during exercise.
The heart rate monitor really sucks up some battery. Apple Watch can track your workouts, from cycling to rowing to the elliptical at your local gym. This is a battery-intensive feature, though, what with all the heartbeat monitoring, GPS connections to your iPhone, and the like.