It's Here! Charge 3: Fitbit's Most Advanced Fitness Tracker Yet
User manual Fitbit Charge 3 (English - 68 pages)
Amazon.com: Fitbit Charge 3 SE Fitness Activity Tracker Graphite/White Silicone, One Size (S and L Bands Included),1 Count (Pack of 1) : Sports & Outdoors
Fitbit Charge 3 Review | Digital Trends
Fitbit Charge 3 review: great fitness, just enough watch - CNET