The Fitbit Charge 4 fitness tracker has made a couple of online appearances recently. One of them was for an FCC certification and the other was on a retailer site. Unfortunately, no images of the Fitbit Charge 4 were leaked, but the prices and colors of the fitness tracker were revealed, as well as the fact it features NFC technology and is water resistant.
https://www.notebookcheck.net/Fitbit-Charge-4-fitness-tracker-full-specs-revealed-by-online-retailer-including-prices-colors-and-NFC-capability.458504.0.html