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Wrist Heart Rate while swimming for 645?

Former Member
Former Member

Hi there,

The Forerunners 245 and 945 have recently had enabled the wrist heart rate monitoring while swimming activities. It would be great to also have it on 645. Does any of you guys know if that is possible and eventually when we can expect that to happen? I recall info I read somewhere that HRM modules are different between 645 and the newer watches, so maybe this is the reason it was omitted so far...