It looks like Fitbit is preparing to launch its next generation of fitness trackers. Images of what looks to be the Fitbit Charge 4 have leaked online in a report from 9to5Google, and come courtesy of a “trusted source.”
The images show that the new device will be almost identical in design to the Fitbit Charge 3, with a grayscale OLED display and a single button on the left side of the display. However, the display in the leaked images shows a new watch face featuring larger numbers for the time, date, and activity statistics. On the back of the device is an optical heart rate monitor along with an SpO2 sensor, which measures the oxygen saturation of the blood.
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