![Amazon.com: Fitbit Charge 4 Fitness and Activity Tracker with Built-in GPS, Heart Rate, Sleep & Swim Tracking, Black/Black, One Size (S &L Bands Included) : Sports & Outdoors Amazon.com: Fitbit Charge 4 Fitness and Activity Tracker with Built-in GPS, Heart Rate, Sleep & Swim Tracking, Black/Black, One Size (S &L Bands Included) : Sports & Outdoors](https://m.media-amazon.com/images/I/71smqRr0pmL.jpg)
Amazon.com: Fitbit Charge 4 Fitness and Activity Tracker with Built-in GPS, Heart Rate, Sleep & Swim Tracking, Black/Black, One Size (S &L Bands Included) : Sports & Outdoors
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Fitbit Charge 4 update shows SpO2 data on the band itself, tracks skin temperature - GSMArena.com news
![FITBIT CHARGE 4 Full Setup (GPS, Clock Faces, Spotify, Payments, Apps, Notifications) & Unboxing! - YouTube FITBIT CHARGE 4 Full Setup (GPS, Clock Faces, Spotify, Payments, Apps, Notifications) & Unboxing! - YouTube](https://i.ytimg.com/vi/R36UWReLHCA/maxresdefault.jpg)
FITBIT CHARGE 4 Full Setup (GPS, Clock Faces, Spotify, Payments, Apps, Notifications) & Unboxing! - YouTube
![Amazon.com: Fitbit Charge 4 Fitness and Activity Tracker with Built-in GPS, Heart Rate, Sleep & Swim Tracking, Black/Black, One Size (S &L Bands Included) : Sports & Outdoors Amazon.com: Fitbit Charge 4 Fitness and Activity Tracker with Built-in GPS, Heart Rate, Sleep & Swim Tracking, Black/Black, One Size (S &L Bands Included) : Sports & Outdoors](https://m.media-amazon.com/images/I/416p+rTJ2bL._SY350_PKmb-play-button-overlay_.jpg)
Amazon.com: Fitbit Charge 4 Fitness and Activity Tracker with Built-in GPS, Heart Rate, Sleep & Swim Tracking, Black/Black, One Size (S &L Bands Included) : Sports & Outdoors
![Charge 4 won't let me change to all of the available clock faces. I get this message for most of them, but I don't see any updates available. : r/ fitbit Charge 4 won't let me change to all of the available clock faces. I get this message for most of them, but I don't see any updates available. : r/ fitbit](https://preview.redd.it/q00v83kxrl151.jpg?auto=webp&s=8a01ba14131e2edbaa8e1e2c91c2b76597d5a491)