6 Months Official Warranty 【Ultra-large 1.43" HD AMOLED Display】At ultra-large 1.43" HD AMOLED the display of the COLMI V73 is enhanced in size, vibrancy, and resolution. Curved to look natural on your wrist, the screen is made from tempered glass that's covered with an anti-fingerprint coating. Enjoy a bigger screen and a smarter style. 【Easy 24/7 Health Management】It’s the ultimate device for a healthier, more active life that can provide blood-oxygen saturation measurement, monitoring of heart rate all day & abnormal heart rate warnings, stress levels & sleep tracking, as well as recording female menstrual period. 【Long-lasting Endurance】This ultra-compact smartwatch packs a mega-powerful 240 mAh battery, bringing 5~7 days of endurance on typical usage and up to 30 days of battery life on battery saver mode.