Fitbit Charge 4 update brings Sp02, skin temperature tracking
Fitbit rolled out some advanced features to its latest line of smartwatches, the Versa and the Sense and eventually to the Ionic too. Now the Fitbit Charge 4 will be getting new features as well in its firmware update. This includes Sp02 or blood oxygen tracking, skin temperature tracking, and a new Health Metrics dashboard. … Read more