A swim-proof design, improved touchscreen and potential for deeper sleep insights make the Fitbit Charge 3 the best all-around fitness tracker for the money.
As an all-around
fitness tracker the Charge 3 is
unfit for purpose.
I've had mine since November. Many of the functions work well,
but it is
let down, as a fitness tracker,
by its
inability to recognize or filter out motorized movement.
My own experience of this problem has come while riding a scooter.
During a 60 km round trip, the watch recorded about 12,000 steps and 200 stair climbs.
This has been an issue with FitBit devices for
FIVE years.
The thread about this, started in 2014, is up to page 43
https colon slash slash community.fitbit.com/t5/Feature-Suggestions/Add-quot-Driving-Mode-quot-Feature-to-avoid-erroneous-steps-floors/idi-p/519276#comments
If you are, say, a delivery driver, you have no way of stopping
the device from erroneously recording steps when driving.
The company's advice is to put the device in the charging cradle...
FitBits lack even a manual function to pause recording.
Any reviewer should have already known about this issue or,
at least, discovered it during review testing.
For me, the sleep tracking is the most interesting feature.
It purports to assess REM sleep using hear-rate variation measurements.
I was hoping that it would have better swim tracking functions.
If you set it to record swims, it turns off HR tracking.
If you let it autorecognize, it records HR.
Either way, it badly undercounts laps/lengths.
If the accelerometers are incapable of counting every push off the wall,
it could do is provide a stroke count to let the user calculate actual lengths.
Anyway, until FitBit resolve the issue with counting steps and stairs
during motorized movement, for most people,
their devices are
useless for overall fitness tracking.