The Fitbit Sense delivers on the basics, but it's clear some features need more work....
High-end; premium design Improved quick-release straps (Mostly) accurate GPS and heart rate sensors Skin temp sensor provides useful data Detailed sleep tracking ~6-day battery life
Google Assistant; Bluetooth calling unavailable at launch Bad inductive button SpO2 tracking requires dedicated watch face EDA and ECG sensors needs refining Fitbit OS still needs work