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Amazon.com: Fitbit Charge 4 Special Edition Fitness and Activity Tracker with Built-in GPS, Heart Rate, Sleep & Swim Tracking, Black/Granite Reflective, One Size (S &L Bands Included) : Sports & Outdoors,
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Amazon.com: Fitbit Charge 6 Fitness Tracker Watch (Coral) Bundle with 2 Watch Bands, 3.3foot Charge Cable, Wall Adapter, 2 Screen Shields & Cloth : Cell Phones & Accessories,
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