All you need is a phone with iOS (from version 9) or Android (from version 4

As for the leading material

A rose sunray dial offers an understated display of baton markers and three-hand movement

The La Tétragone combines a classic white pearl face and silver three-link straps for the perfect blend of timeless yet contemporary design

or everyday wear

Kenneth Cole Ladies White Watch White (Dial) All you need is aA timepiece that expresses vitality and a carefree attitude, and possesses a particular allure and a special graciousness. The watch collection is rich in ideas, always suggesting new ways of dressing to reflect the lifestyle of todays youth.