I’m also interested in how I will feel about the Charge 5 in a year, especially in light of possible changes in the Apple Watch by Sept. 2023. To answer your questions, I think my original Fitbit was the Charge or Charge 2 - I got it in March 2016 as a birthday gift. I liked it quite a lot, although it was unable to keep an accurate HR during aerobic walks. I was a cyclist at the time, however, and it was very good with bicycling HR. I liked its sleep tracking, tracking of resting heart rate, VO2 Max, and I **really** liked the food/calorie intake/weight loss features. I used that happily for about a year, and it was the primary driver of a 45-pound weight loss. My second was a Versa, when I wanted a smartwatch in addition to a tracker. Unfortunately, its “smartwatch” features were less than I had expected. I got the AW5 in March of 2020 because it was the most revered smartwatch (deservedly), but in the same way I was disappointed in the Versa as a smartphone, I’ve always wished it was a stronger exercise/diet etc tracker.
The three Fitbits I’ve had, and the AW5, were (and are) all high quality. My adult children and a few friends of mine use Fitbits and have no quality issues.