The Fitbit Versa 4 and Charge 6 will record your sleep metrics ... a long-standing heart condition who may be at risk of heart problems - though it should never be used as a diagnostic tool.

If your Fitbit Charge HR isn't working quite right ... holding for two seconds and then removing the power cable. 4. Once the cable is removed, continue holding for a count of eight to nine ...

As a result, the battery will last for shorter periods between charges and you may need to charge your ... posts about these problems each have comments from several other Fitbit users who ...

some users that received the update are experiencing new problems. According to user reports on both Fitbit's forums and Reddit, affected Fitbit devices' batteries are losing their charge much ...