Went swimming with my Charge 5 today, water-locked, now it's dead four hours later : r/fitbit
Fitbit's Charge 3 adds a better screen, swim tracking, and smartwatch-style features - The Verge
Amazon.com : Fitbit Charge 4 Fitness and Activity Tracker with Built-in GPS, Heart Rate, Sleep & Swim Tracking, Black/Black, One Size (S & L Bands Included) (Renewed) : Sports & Outdoors
Which Fitbit is waterproof? How to know which tracker to buy before you dive in | TechRadar
Amazon.com: Wepro Bands Replacement Compatible Fitbit Charge 3 for Women Men Large, Waterproof Breathable Holes Watch Sport Strap Accessories for Fitbit Charge 3 SE Fitness Tracker, Black : Electronics
Amazon.com: Wepro Waterproof Bands Compatible with Fitbit Charge 4 / Charge 3 / Charge 3 SE for Women Men, 3-Pack Replacement Wristbands for Fitbit Charge 3 / Charge 4, Small, Beige, Smoke Violet, Black : Electronics
Amazon.com: Wepro Waterproof Bands Compatible with Fitbit Charge 4 / Charge 3 / Charge 3 SE for Women Men, 3-Pack Replacement Wristbands for Fitbit Charge 3 / Charge 4, Small, Beige, Smoke Violet, Black : Electronics