Number Of Lithium Ion Cells:1Item Shape:RoundBand Material:Does not applyCase Size:Does not applyModel:Does not applyUPC:Does not applyImport Designation:ImportedTarget Audience:Unisex AdultsBrand:Does not applyCompatible Operating System:Does not applyBatteries Required?:YesCompatible Devices:Smartphonesgtin13:Does not applyBatteries Included?:YesStyle:ClassicType:Does not applySize:Us 8Display Size:1.0Model Name:H01 Smart RingPackage Dimensions LxWxH:3.46x3.23x1.06 InchesModel Number:Tul-H01Weight:0.14 PoundsMaterial:Stainless SteelBattery Weight:0.5Included Components:Smart Ring, Charging Cable, User ManualColor:Silver With Middle Gold