The Reflex Active Calling Series Smart Watch with a black rubber strap is a sleek and stylish fitness sport accessory that combines modern technology with a touch of elegance. This smartwatch features a 38mm black case, perfect for those who appreciate a clean and sophisticated design. With a 1-year manufacturer warranty, this device is unlocked for use with both iOS and Android operating systems. Ideal for those looking for a reliable and versatile smartwatch that caters to their fitness goals and communication needs.