Suggested Retail: $121.99. Fitbit Charge 4 Fitness and Activity Tracker with Built-in GPS, Heart Rate, Sleep & Swim Tracking - The Fitbit Charge 4 is a sleek, swimproof fitness and activity tracker packed with features. It has built-in GPS, Active Zone Minutes, Sp02, exercise modes, and sleep tracking. It's also equipped with Fitbit Pay and has a battery life of up to 7 days. It can track workouts in real-time with 20+ goal-based exercise modes and is water resistant to 50 Meters. It also has the ability to track your skin temperature each night and use 24/7 heart rate to better measure calorie burn. Brand: Fitbit Model: FB417BKBK -- LOT STICKER: TCE-BOX-BOXTCEC0607-ITEM-afd5e2b8___LPNPMCF4627537 Fitbit Charge 4 Fitness and Activity Tracker with Builtin GPS, Heart Rate, Sleep Swim Tracking, BlackBlack, One Size S L Bands Included -- SIZES ARE ESTIMATED. 7 CALENDAR DAY FULL REFUND GUARANTEE (FROM PRIMARY PICKUP DATE) ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 CALENDAR DAY STORAGE (FROM PRIMARY PICKUP DATE) IS ALSO AVAILABLE. THE PRIMARY PICKUP DATE IS THE DAY AFTER THE AUCTION ENDS. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.