My Charge 3 did this today. Warranty was up three weeks ago. Fitbit had every right to deny to replace it, but 10 minutes with tech support chat and they are shipping
WITHit 3 Pack Sport, Mesh & Woven Silicone Band for Fitbit Charge 3 and 4 Black Mesh/Bluestone Sport & Black Woven Silicone 55480BBR - Best Buy
Amazon.com: FunBand for Fitbit Charge 3 Strap Bands,Classic Edition Soft Silicone Sport Adjustable Replacement Accessory Bracelet Bands (Small or Large Size) for Fitbit Charge 3 Fitness Activity Wristband : Electronics
Amazon.com: Fitbit Charge 3 Fitness Activity Tracker, Rose Gold/Blue Grey, one Size (no Warranty Support), 0.06 Pound : Sports & Outdoors
100mah Battery For Fitbit Charge 3 High Quality Replacement Accumulator - Mobile Phone Batteries - AliExpress
WITHit 3 Pack Sport, Mesh & Woven Silicone Band for Fitbit Charge 3 and 4 Black Mesh/Bluestone Sport & Black Woven Silicone 55480BBR - Best Buy
Fitbit Charge 3 Review | Digital Trends
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
I wish I hadn't bought it': Fitbit Australia agrees to change warranty policy | Stuff.co.nz
WITHit 3 Pack Sport, Mesh & Woven Silicone Band for Fitbit Charge 3 and 4 Black Mesh/Bluestone Sport & Black Woven Silicone 55480BBR - Best Buy
Amazon.com: FunBand for Fitbit Charge 3 Strap Bands,Classic Edition Soft Silicone Sport Adjustable Replacement Accessory Bracelet Bands (Small or Large Size) for Fitbit Charge 3 Fitness Activity Wristband : Electronics
I am so sick of Fitbit's lousy product warranty and abysmal customer service. : r/fitbit
What to do if your Fitbit breaks | iMore
How to Fix It When Your Fitbit Won't Turn On
Amazon.com: Fitbit Charge 3 Fitness Activity Tracker, Rose Gold/Blue Grey, one Size (no Warranty Support), 0.06 Pound : Sports & Outdoors
Amazon.com: Fitbit Charge 3 SE Fitness Activity Tracker, Lavender Woven, One Size (S and L Bands Included),1 Count (Pack of 1) : Sports & Outdoors
Amazon.com: 4 Pack Bands for Fitbit Charge 4/ Fitbit Charge 3/ Charge3 SE, Soft Waterproof Replacement Wristbands for Women Men Small Large : Electronics