Question about SwitchBot Bot

I ordered a black SwitchBot to go with the white one, as it is a better colour match for the intended use. Although everything else seems to be the same, a maximum swivel angle of 120° is mentioned for the black one and 135° for the white one. However, this is not stated in the Digitec data. I did not find any difference on the manufacturer's website. Was there possibly an older version of the black SwitchBot that I got from Digitec? Interestingly, the battery in it was already empty...