Had FitBit products for several years. Before purchasing Sense, I had Versa 2 -- it was awesome. It lasted several years when it finally crashed. I saw a sale here for Sense, the newest model. I have owned it now for 2 months -- it has sync issues, notifications do not show, battery only lasts 1 day, and the back must contain nickel as everytime I wear it, I itch and my wrist rashes up - this did not happen with Versa -- I am bummed! And, now Macy's says I cannot return it because I bought it 2 months ago. Would not recommend.