Multifunction Y20 bluetooth smartwatch: Functions: • Synchronization and notice of phone notifications, such as email, Whatsapp, Facebook, Twitter, etc. and SMS. Compatible with Android and iOS devices via free app • Call notification. • Y20 multifunction bluetooth smartwatch: Functions: • Synchronization and notice of phone notifications, such as email, Whatsapp, Facebook, Twitter, etc. and SMS. Compatible with Android and iOS devices via free app • Call notification. • Material: PVC; Alloy: Metal;; Color: Military Green;