Samsung Electronics Galaxy Watch 4 40mm Smartwatch with ECG Monitor Tracker for Health Fitness Running Sleep Cycles GPS Fall Detection Bluetooth US Version - (Black) (Renewed)

Operating System: Wear OSMemory Storage Capacity: 16 GBSpecial Feature: GPSBattery Capacity: 247 Milliamp HoursConnectivity Technology: BluetoothWireless Communication Standard: BluetoothBattery Cell Composition: Lithium IonGPS: TrueShape: Heart,IrregularScreen Size: 1.2 InchesGet Ready To Crush Your Wellness Goals With Body Readings Right On Your WristBetter Sleep Starts Here: Wake Up Feeling Refreshed And Recharged With Advanced Sleep Tracking; When You Go To Bed, Your Galaxy Watch4 Sleep Tracker Starts Monitoring Your Sleep And Spo2 Levels ContinuouslyBe Smart About Your Heart: Take Care Of Your Heart With Accurate Ecg Monitoring And Keep An Eye On Possible Atrial Fibrillation, A Common Form Of Irregular Heart Rhythm; Share Personalized Readings With Your Doctor Using The Samsung Health Monitor App On Your Compatible Galaxy PhoneMake Every Workout Count: Get The Most Out Of Every Exercise Session With Advanced Workout Tracking That Recognizes 6 Popular Activities, From Running To Rowing To Swimming, Automatically In Just 3 Minutes; Stay Motivated By Connecting To Live Coaching Sessions Via Your Smartphone Or To Dynamic Group Challenges With Your Friends- This pre-owned product has been professionally inspected, tested and cleaned by Amazon-qualified suppliers. faultless for everyday use. supreme materials and excellent craftsmanship ensure long-lasting durability.