Xiaomi Redmi Watch 4 Smartwatch with 1.97 Inch AMOLED Display with 390 x 450 Pixels and 60 Hz, Up to 20 Days Battery Life, HyperOS, Heart Rate and Blood Oxygen Measurements - Obsidian Black

Overview Operating system: MIUI Memory storage capacity: 1 GB Special feature: Activity Tracker, GPS, Multisport Tracker, Phone Call Battery capacity: 470 Milliamp Hours Connectivity technology: Bluet...