Identify fitbit tracker from serial number?

[SunsetRunner]

I have no idea which tracker I have but it's likely to be a bit old. It probably isn't a Flex but I had to select a product to be able to ask the question.

I don't have the original box anymore, nor the original charger (the charger I do have is for an even older tracker and is too wide for this one) but I am able to charge the tracker via the USB on my laptop using the connector on the other side from the serial number panel.

Serial number is apparently something I cannot enter in a community message.

[SunsetRunner]

I've tried various options to setup this device in the app, no matter what product I select, the search never finds the device.

Tried Charge5, Charge4, Charge3, Charge2, Inspire3, Inspire2, Inspire, Luxe, Alta.

Is there a page which shows the back of the trackers?

[SunsetRunner · Accepted solution]

Ignore query, apparently it isn't a fitbit tracker.

[LZeeW]

You are correct.  It's not a Fitbit model.  Fitbit doesn't put a circle on the screen.