Jm Smart Pro-XL GPS smartwatch with green bracelet Key features: User language English Call and message notifications WeChat, QQ, Whatsapp, Facebook, Twitter, Instagram, reminder function Steps, heart rate, distance, weather, music control, calories, blood oxygen measurement, breathing exercise 14 sports timer / timer Display brightness adjustment Phone GPS connection VeryFitPro app Battery life: up to 10 days (not in GPS mode) Specifications: Water resistance: 50 m / 5 bar. Size: 44×36,6 mm Strap3636.3 mm : green, interchangeable Display: 1.55″ TFT-LCD Jm Smart with clocksa has 2-year importer’s smartwatch and wristwatch warranty and a 1-year battery warranty.