Can we connect galaxy watch to iphone?

how to connect samsung galaxy watch 4, galaxy watch 5, & watch 5 pro to iphone. trying to connect galaxy watch 4 to iPhone by Samsung Galaxy watch iOS app. it will connect or not?
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Samsung galaxy watch 4 - https://www.amazon.in/dp/B09DG9VNWB/r...

Samsung galaxy watch 5 - https://amzn.to/41F3Ken
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Key Moments
0:00 Intro
0:24 Open app store on iphone
1:01 Open samsung galaxy watch app
1:03 Trying to connect samsung galaxy watch 4 to iphone
1:53 Compatible samsung galaxy watches with iphone
4:09 Non compatible samsung galaxy watches with iphone
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