How do I clear all personal data from the pinetime smartwatch?

[taltamir]

Thank you. I found it, using it does not have any visible response from the device.
On the other hand, on further inspection, I am not sure if there is really all that much personal data stored to actually delete.
Does it actually store records of my steps and heart rate monitor results?
it connects via bluetooth. but not wifi. so it shouldn't be storing my wifi password.