Full disclosure: I know nothing about FITBITs (apple watch lady!) BUT my mom’s fitbit broke- she got a new one replaced (this one) meanwhile my dad bought her a new one SO I told her I would try and sell this replacement one for her… There is NO charging cord or user guide- just the never been opened package from FITBIT. Fourth / Stock photo is from Amazon pictured blue but the actual fitbit I am selling is the BLACK color / style. Description From Amazon: * 1.4in l x 0.9in w x 0.5in h, Backlit OLED display, GPS, Optical heart rate monitor - 24/7 heart rate tracking, NFC, 3-axis accelerometer * Get call and calendar alerts, send text notifications and quick replies. Automatic sleep tracking and silent alarms on your wrist * Battery life up to 7 days, or up to 5 hours with continuous GPS use. Water-resistant to 50 meters. * Syncs with Mac OS X 12.2 and up, iPhone 5S and later, iPad 5 gen. and later, Android 7.0 and later. Syncing range: Up to 30 feet. * US Model w/ warranty. In Box: Fitbit Charge 4, Blue and Black Classic Bands (Small and Large), Charging cable. Brand Fitbit Style Modern Color Black Screen Size 50 Special Feature Sleep Monitor, GPS, Heart Rate Monitor Shape Rectangular Target Audience Unisex Adult Age Range (Description) Adult Compatible Devices Smartphone Display Type OLED