You can read everything on the difference between the new Fitbit Versa and Fitbit Sense 2 here.
Fitbit Sense 2 vs Fitbit Versa 4: Which new watch is right for you?
Fitbit Sense 2 vs Versa 4: Which one should you buy? - Android Authority
Fitbit Sense 2 vs Versa 4: What's the difference?
Fitbit Versa 4 review: Back to basics - Android Authority
Fitbit Sense 2 vs. Fitbit Versa 4: Which new smartwatch is best for you? - Wareable
Fitbit Sense 2 Vs. Fitbit Versa 4: Which Fitness Tracker Is Best?
Advanced Health Fitness Smartwatch Shop Fitbit Sense, 49% OFF
Score a Free $50 Gift Card With Fitbit Sense 2 and Versa 4 Preorders at Best Buy - CNET
Amazfit GTS 4 vs Fitbit Sense 2: What is the difference?
Fitbit Sense 2 vs Versa 4: Which one should you buy? - Android Authority
Advanced health & fitness smartwatch
Fitbit Versa 4 review: the good, the bad, the ugly
5 Underrated Fitbit Sense, Versa features you should know
Fitbit Sense 2 vs Versa 4 after a month: Good health and fitness features but beware GPS use
Fitbit Sense 2 vs Versa 4: Which one should you buy? - Android Authority