I used a Garmin vivofit 3 for about a year and a half without a battery change. I liked it and it felt a little bit like an F91W. I switched to an Apple Watch 4 for a while and I'm back on Casio for now but I might consider another vivofit if they keep making them.
> Activity Tracker with Garmin Move IQ Automatic Activity Detection Features 1-year battery life Shows steps, calories, distance, intensity minutes and time of day on backlit display; monitors sleep Auto activity detection classifies activity type on Garmin Connect . . . it DOES NOT include a built-in wrist heart rate monitor.
The step counters always seemed wildly inaccurate to me and they're pretty much useless for hiking. But I'm generally not really into the quantified health stuff.
Ah, I never really bothered to verify and instead used it to measure whether I walked as much as I did the previous day. I assume it does a bit better at this. Thanks for pointing that out.
> Activity Tracker with Garmin Move IQ Automatic Activity Detection Features 1-year battery life Shows steps, calories, distance, intensity minutes and time of day on backlit display; monitors sleep Auto activity detection classifies activity type on Garmin Connect . . . it DOES NOT include a built-in wrist heart rate monitor.