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.
On its website, Apple says the Watch will take 90 minutes to go from 0% to 80% and 2 1/2 hours to go from 0% to 100%. This charge time was tested by Apple this month using preproduction hardware and software paired with an iPhone running preproduction software.