Jm Smart Plus sports watch with red strap Key features: User language English Call and message notifications Wechat, QQ Whatsapp, Facebook, Twitter reminders Steps, distance, calories, sleep analysis, heart rate, blood pressure Multi-Sport mode Flagfit 2.0 app Battery life: days Specifications: Waterproof class IP68 Size 234x40x11 mm Strap: red polyurethane 0.96" TFT-LCD display Jm Smart smart wristband with watchesa is 2-year importer's warranty on the smartwatch and wristband and a 1-year battery warranty on the battery.