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 Watch at a glance. 1  Apple Watch has gone on sale worldwide online and in Apple Stores. 2  There are four models of Apple Watch: Apple Watch Sport, Apple Watch, Apple Watch HermÃ¨s and the 18k gold Apple Watch Edition. 3  The smartwatch features a maximum 18-hour battery life and MagSafe 'wireless' induction charger.