The question you are looking at in the title was asked by one of our viewers.
To find an answer to this question I went through different articles and I didn’t find anything strong related to this scenario.
I repair smartphones for 3-4 years, so on that basis, I will say there is a very low chance of damage to a smartwatch if you connect to a smartphone even if there is Malware in the smartphone it has a very low potential to give damage to that smartwatch.
Apple’s Smartwatch runs on WatchOS, Samsung smartphone runs on Tizen OS(Operating System) which if you infect with a smartphone’s malware, then it will not affect that watch as Operating System of smartwatches are different than a smartphone.
Hence, if you have doubt about some smartphones having malware in them I will say, they have a 10% chance to damage your smartwatch.
Have any question related to tech, then don’t hesitate to ask in the comment box. I will definitely reply to your commenst.