Hi, I think that after last update where the log says "Improved reliability of heart rate monitoring sensor" it's even worse. And HR is far from being the only issue this watch has, but its most disturbing. It's true that as a fitness watch it is useless so if you need fitness watch don't even think of buying it because it's not capable of doing basic things like reading heart rate. For a long time this issue was ignored from Samsung and now that fix finally came out through the update they made it worse. The only thing that was improved is battery life.
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