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.
Apple designed Apple Watch with a battery life expectancy of 18 hours per day, and from my own experience, I can definitely attest that it usually far exceeds that number. But of course, it all depends on your usage. Depending on what you do with it, you might see better or worse battery life.