Charge 4 - Exaggerated step count

[Archivalrous]

I've been wearing my new charger for about 3 hours, in which time I've been sat still, reading before I go to bed and I've only got up to walk the 20 or so steps to the bathroom to brush my teeth (with the hand not wearing the fitbit).

So how/why has the device registered over 250 steps? Is it just a case that the charge 4 takes a while to calibrate to me, or is a standard feature for it to count 10 times more steps than you take?

Moderator edit:  updated subject for clarity

[JuanFitbit]

@Archivalrous , Nice to see you here. Thank you for your message and information. 

Fitbit devices have a finely-tuned algorithm for step counting.

The algorithm is designed to look for intensity and motion patterns that are most indicative of people walking and running.

When working at a desk, cooking, or performing other activities with arm movements, a device on your wrist may add some steps. When you’re doing activities that involve arm movement—such as working or cooking—you often walk a few steps in-between stationary periods as well, so the device tries to give you credit for those steps. For most customers, the number of extra steps added by arm-based movement isn’t significant when compared to your overall stats.

For more information, see How does my Fitbit device calculate my daily activity?