Bests & Worsts Reviews from Amazon

I have been wearing a Fitbit for several years. My Charge 2 has finally worn out, so I thought I would replace it with brand, new technology in the Charge 4. The Charge 4 did not recognize my first night of sleep, my burn was significantly lower than it has ever been, it didn't auto recognize my walks that my Charge 2 always recognized, and my number of hours with 250 steps for the first day said 13 of 14 on my device but recorded on the app as 3 of 14. No matter how many steps I took from the Fitbit troubleshooting website, NOTHING would work to give me my hours with 250 steps back. So, after 24 hours, I sent it back and bought a Fitbit Charge 3, which I love. Fitbit should do WAY more testing before launching a product with so many issues.