5 ms·
In any case, the software also shows a visual indicator of when it detects that your heartbeat, and it graphs your heartbeat over time. It's obvious from feeli
by sounddust 16y ago
In any case, the software also shows a visual indicator of when it detects that your heartbeat, and it graphs your heartbeat over time. It's obvious from feeling your pulse while using it that it's correct, at least in my case with my phone.