Here's the Fitbit Charge 4, looks exactly like Charge 3 - 9to5Google
Fitbit Charge 3 review: Comfortable activity tracker backed by a powerful fitness platform | ZDNet
Fitbit Charge 3™ Advanced Fitness Tracker | Shop
Fitbit Charge 3 blurs the line between fitness tracker and smartwatch
Fitbit Charge 3 Review - Best New Features of the $150 Tracker
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