Fitbit Ace 3 User Manual Wear Ace 3
Place Ace 3 around your wrist. If you purchased an accessory band, see the instructions in "Change the band".
Placement
Wear Ace 3 a finger's width above your wrist bone.

Handedness
For greater accuracy, you must specify whether you wear Ace 3 on your dominant or non-dominant hand. Your dominant hand is the one you use for writing and eating. To start, the Wrist setting is set to non-dominant. If you wear Ace 3 on your dominant hand, change the Wrist setting in the Fitbit app:
From the Today tab in the Fitbit app, tap your profile picture > Ace 3 tile > Wrist > Dominant.
Wear and care tips
Clean your band and wrist regularly with a soap-free cleanser.
If your tracker gets wet, remove and dry it completely after your activity.
Take your tracker off from time to time.
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