Question Identifying second hand fitness tracker

[The curious]

So. I bought a fitness tracker from a second hand shop yesterday, for $22. The only trouble is, it has no identifying information on it, so I've got no idea what app it pairs with. I also can't even set the correct time on it, without this. If anyone can help out with that, I'd appreciate it, thanks.

https://ibb.co/CQcZHzm
https://ibb.co/JHWWp2T
https://ibb.co/Z6KPSTQ
https://ibb.co/QYXynnz

 

[COLGeek]

Looks like this:

https://www.amazon.co.uk/RBNANA-Fitness-Tracker-Activity-Waterproof/dp/B08LV3DTPF

It could also be an Atmos Fitness Watch.

 

[The curious]

Looks like this:

https://www.amazon.co.uk/RBNANA-Fitness-Tracker-Activity-Waterproof/dp/B08LV3DTPF

It could also be an Atmos Fitness Watch.

There's no colour on the screen at all, and the band doesn't match for the first, there.

The second is closer, but there's no sleep monitor, and the way that the time is displayed doesn't match. And again, the band is a completely different style.

Thanks, though.