A:AnswerHi there, LSSAD. Yes, the Charge 6 works with Charge 5 bands as they share the same mechanism for removing and attaching bands. Here’s a link with more information: https://support.google.com/fitbit/answer/14237222
A:AnswerThanks for the inquiry. The Charge 6 requires an Apple device running iOS 16.4 or higher. Here’s a link with more specifics: https://support.google.com/product-documentation/answer/14226283
A:AnswerIt doesn't seem to monitor O2 levels except while sleeping. It can measure heart rate even when not connected to phone; it will need to sync when a phone becomes nearby, and then you can see heart rate history
A:AnswerHi there. Unfortunately, there are no Fitbit watches that are able to provide blood pressure readings. However, most can detect your heart rhythm and heart rate. When you use the Fitbit ECG app, your heart rhythm data is analyzed for signs of AFib. For more information, here’s an article to view: https://support.google.com/googlepixelwatch/answer/13783955?hl=en&sjid=4984941481178094170-NC