How has using a fitbit affect your device battery?

[zocster]

I am curious to find out if it has impacted much on battery life of your device?

 

[robertk328]

I used a Flex and then a Charge HR for a while and can't say I ever noticed any impact on battery.

My work exchange server is another story!

 

[mumfoau]

I used a Flex and then a Charge HR for a while and can't say I ever noticed any impact on battery.

My work exchange server is another story!

The follow-on question though would be, do you use all-day sync?