An upcoming update coming to the Fitbit Sense and Versa 3 will bring new valuable features to the wearables. Fitbit OS 5.2 will introduce SpO2 tracking on-wrist, where you'll also see your nightly average SpO2 and range from your previous night's sleep on your Fitbit. The update will also bring high and low heart rate notifications to the Versa 3. The feature was initially only available on the Fitbit Sense.
The update will also bring an on-device clock face switcher, so you can swap out your clock face without leaving the main screen. There will be two new goal celebrations coming to all smartwatches to help motivate you to reach your goals. And notifications will support Arabic, Hebrew, Hindi, and Thai characters. You can read more about the update here.