A:Answer Hi, there. Starting with Charge 5, we wanted to bring advanced health experiences to a streamlined tracker design. We're excited to bring the Fitbit ECG app, EDA scan for stress management, and our new Daily Readiness Score to the Charge series. Packaged in a sleek new design with a new color display, Charge 5 and Charge 6 include the same 7-day battery life as Charge 4. To enable these new experiences, we had to remove the altimeter on the Fitbit Charge 6. Hope this helps and if you have any other questions, reach us at: https://goo.gle/contactfitbit
