6 kph in a windless laboratory environment at 20 meters above sea level

Optional 550-sheet tray: letter

Different bearing types have unique pros and cons

The USB Type C data connector port supports IEEE 802

Boost Your Productivity

Fitbit Charge 6 Advanced Fitness & Health Tracker, Obsidian / Black Aluminum Slice 6 kph in a windlessFitbit Charge 6 Tracker Product Feature Heart rate on gym equipment Connect Charge 6 to your favorite compatible exercise machine and see your real time heart rate directly on the display. Compatible with select workout machines that support the Bluetooth Heart Rate Profile, and coming soon to more. See here for more information on Charge 6 compatible machines. Daily Readiness Score Find out if your body's ready to work out or needs time to recover.