The Samsung Gear 2 Smart Watch Model SM-R381 in black is a stylish and functional accessory for your mobile phone. With a sleek black case and matching silicone band, this smart watch is designed to seamlessly blend with your outfit. Running on the Tizen operating system, it offers a range of features including fitness tracking, notifications, and customisable watch faces. The unlocked network capability allows for connectivity on the go, while the 22mm case size ensures a comfortable fit on your wrist.Stay connected and stay stylish with the Samsung Gear 2 smart watch. Largest size is 19cm wrist size. Smallest it can go to is 14cm wrist size.