New 2021 big explosion models i126621 ultra-low power chip 1.69 full screen, full dynamic dial, new menu design gives you a visual feast, watch comes with 15 cool dials, true rate data, work hard to switch the dial operation interface with rotating button, IP67 level waterproof, Bluetooth calling, Bluetooth music, heart rate detection, component function, 3d animation Dial, 23 national languages, smooth drag effect, artificial intelligence split screen function, latest and stable Wearfit pro App, more than 100 dials and watchbands can be changed at will, strong endurance upgrade for 65 days, exquisite craftsmanship, the most fashionable appearance