My original Fitbit Versa was a great product that simply gave out from use. My Sense has been a disappointment from the first few weeks. The altimeter quickly got out of sync and regularly says I have climbed hundreds of flights of stairs a day. Now after about 6 months it doesn't even keep track of my heartbeat. I gave up on its accuracy when doing weightlifting but even during a run it reads lower than when I wake up. I was reading about the recent scandal where Fitbit is being sued for grossly misrepresentating their stats and accuracy and I fully believe they hid the incredible inaccuracy and low quality of their recent products
