While the original Fitbit Sense is usually the better value pick, the Sense 2 discount is currently so large that you might as well get the newer model
Fitbit Sense 2 review: Get the Pixel Watch instead
Fitbit Sense 3 wishlist: All the features I want to see
Fitbit should drop the Versa 5; here's why
Solved: Pros and cons between Sense and Sense 2 - Fitbit Community
Fitbit Sense 2 review: Leaving us with more questions than answers
Fitbit Sense 2 review
Fitbit Sense 2 review: a fitness tracker disguised as a smartwatch
Fitbit Sense 2 Review: Stressed Out - Tech Advisor
Fitbit Sense 2 vs Fitbit Sense - Coolblue - anything for a smile