![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)
First Look: Fitbit Charge 3 Activity Tracker with SpO2 Sensor & Sleep Disturbance Tracking | DC Rainmaker
![Fitbit Charge 5 comes with an ECG, EDA and many more sensors, brighter Always On display - GSMArena.com news Fitbit Charge 5 comes with an ECG, EDA and many more sensors, brighter Always On display - GSMArena.com news](https://fdn.gsmarena.com/imgroot/news/21/08/fitbit-charge-5-announced/popup2/gsmarena_006.jpg)
Fitbit Charge 5 comes with an ECG, EDA and many more sensors, brighter Always On display - GSMArena.com news
![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/2018/08/2018-08-17-15.43.12.png)
First Look: Fitbit Charge 3 Activity Tracker with SpO2 Sensor & Sleep Disturbance Tracking | DC Rainmaker
![A new Fitbit software update unlocks blood oxygen tracking on several devices - NotebookCheck.net News A new Fitbit software update unlocks blood oxygen tracking on several devices - NotebookCheck.net News](https://www.notebookcheck.net/fileadmin/Notebooks/News/_nc3/csm_1D8B7E7C_0417_4B29_A75E_90A47DA47349_d256175fd4.jpg)