![Fitbit Charge 4 updated with features like skin temperature, SpO2 tracker, and more- Technology News, Firstpost Fitbit Charge 4 updated with features like skin temperature, SpO2 tracker, and more- Technology News, Firstpost](https://images.firstpost.com/wp-content/uploads/2020/04/fitbit-charge-4-1280-min.jpg)
Fitbit Charge 4 updated with features like skin temperature, SpO2 tracker, and more- Technology News, Firstpost
![First Look: Fitbit Charge 3 Activity Tracker with SpO2 Sensor & Sleep Disturbance Tracking | DC Rainmaker First Look: Fitbit Charge 3 Activity Tracker with SpO2 Sensor & Sleep Disturbance Tracking | DC Rainmaker](https://media.dcrainmaker.com/images/2018/08/Fitbit-Charge3-Excercise-Modes.jpg)
First Look: Fitbit Charge 3 Activity Tracker with SpO2 Sensor & Sleep Disturbance Tracking | DC Rainmaker
![First Look: Fitbit Charge 3 Activity Tracker with SpO2 Sensor & Sleep Disturbance Tracking Smart Weight Watch First Look: Fitbit Charge 3 Activity Tracker with SpO2 Sensor & Sleep Disturbance Tracking Smart Weight Watch](https://smart-health.biz/wp-content/uploads/2018/08/Fitibt-Charge-3-Connected-GPS_thumb.jpg)
First Look: Fitbit Charge 3 Activity Tracker with SpO2 Sensor & Sleep Disturbance Tracking Smart Weight Watch
![First Look: Fitbit Charge 3 Activity Tracker with SpO2 Sensor & Sleep Disturbance Tracking | DC Rainmaker First Look: Fitbit Charge 3 Activity Tracker with SpO2 Sensor & Sleep Disturbance Tracking | DC Rainmaker](https://media.dcrainmaker.com/images/2018/08/Fitbit-Charge3-Optical-Sensor-Swappable-bands.jpg)
First Look: Fitbit Charge 3 Activity Tracker with SpO2 Sensor & Sleep Disturbance Tracking | DC Rainmaker
![First Look: Fitbit Charge 3 Activity Tracker with SpO2 Sensor & Sleep Disturbance Tracking | DC Rainmaker First Look: Fitbit Charge 3 Activity Tracker with SpO2 Sensor & Sleep Disturbance Tracking | DC Rainmaker](https://media.dcrainmaker.com/images/2018/08/Fitbit-Charge3-Gorilla-Glass-3.jpg)
First Look: Fitbit Charge 3 Activity Tracker with SpO2 Sensor & Sleep Disturbance Tracking | DC Rainmaker
![Fitbit unveils Charge 3, adds SpO2 tracking in preparation for potential sleep apnea, a-fib features | MobiHealthNews Fitbit unveils Charge 3, adds SpO2 tracking in preparation for potential sleep apnea, a-fib features | MobiHealthNews](https://www.mobihealthnews.com/sites/default/files/Fitbit%20Charge%20HR_5.png)
Fitbit unveils Charge 3, adds SpO2 tracking in preparation for potential sleep apnea, a-fib features | MobiHealthNews
![First Look: Fitbit Charge 3 Activity Tracker with SpO2 Sensor & Sleep Disturbance Tracking | DC Rainmaker First Look: Fitbit Charge 3 Activity Tracker with SpO2 Sensor & Sleep Disturbance Tracking | DC Rainmaker](https://media.dcrainmaker.com/images/2018/08/Fitbit-Charge3-Optical-Sensors.jpg)