General Brand Mi Model Smart Band 4 Model Name Band 4 Color Black Ideal For Unisex Material Thermoplastic Suitable For Health, Lifestyle Touch Enabled Yes Water Resistant Yes Dial Shape Rectangle Display and battery features Display Resolution 120 x 240 RGB Display Type AMOLED Battery Life (Days) 20 Battery Type Lithium Ion (Li-ion) Charge Time (hours) 2 Bat...